CIDR Details

192.154.4.0/23

AS25University of California at Berkeley

Summary

ASNAS25
Registration Date1992-03-31
Last Changed Date2021-12-15
Abuse Email[email protected]
Abuse Tel+1-510-664-9000
Hosted IPs512
IP AddressRDAP

IP Address

CIDR is a method for assigning IP addresses and defining IP address ranges more flexibly than the older class-based addressing methods. It allows network administrators to allocate IP addresses in smaller, more efficient blocks, which reduces address wastage. Below is a comprehensive list of all IP addresses within the CIDR block 192.154.4.0/23.

RDAP

RDAP stands for Registration Data Access Protocol. It is a protocol used to access and retrieve registration data for internet resources such as domain names, IP addresses, and autonomous system numbers. RDAP has several advantages over the WHOIS protocol, including support for internationalization, secure access to data, and the ability to provide differentiated access to registration data. Here is the RDAP raw data for 192.154.4.0/23.

Summary

NameNET-SEQUOIA1
Registration Date1992-03-31
Last Changed Date2021-12-15
Technical Tel+1-510-664-9000
Administrative Tel+1-510-664-9000
Technical EMAIL[email protected]
Administrative EMAIL[email protected]
Abuse Tel+1-510-664-9000
Abuse EMAIL[email protected]

Raw data

1{
2        "rdapConformance": [
3                "nro_rdap_profile_0",
4                "rdap_level_0",
5                "cidr0",
6                "arin_originas0"
7        ],
8        "notices": [
9                {
10                        "title": "Terms of Service",
11                        "description": [
12                                "By using the ARIN RDAP/Whois service, you are agreeing to the RDAP/Whois Terms of Use"
13                        ],
14                        "links": [
15                                {
16                                        "value": "https://rdap.arin.net/registry/ip/192.154.4.0",
17                                        "rel": "terms-of-service",
18                                        "type": "text/html",
19                                        "href": "https://www.arin.net/resources/registry/whois/tou/"
20                                }
21                        ]
22                },
23                {
24                        "title": "Whois Inaccuracy Reporting",
25                        "description": [
26                                "If you see inaccuracies in the results, please visit: "
27                        ],
28                        "links": [
29                                {
30                                        "value": "https://rdap.arin.net/registry/ip/192.154.4.0",
31                                        "rel": "inaccuracy-report",
32                                        "type": "text/html",
33                                        "href": "https://www.arin.net/resources/registry/whois/inaccuracy_reporting/"
34                                }
35                        ]
36                },
37                {
38                        "title": "Copyright Notice",
39                        "description": [
40                                "Copyright 1997-2023, American Registry for Internet Numbers, Ltd."
41                        ]
42                }
43        ],
44        "handle": "NET-192-154-4-0-1",
45        "startAddress": "192.154.4.0",
46        "endAddress": "192.154.4.255",
47        "ipVersion": "v4",
48        "name": "NET-SEQUOIA1",
49        "type": "DIRECT ALLOCATION",
50        "parentHandle": "NET-192-0-0-0-0",
51        "events": [
52                {
53                        "eventAction": "last changed",
54                        "eventDate": "2021-12-14T20:28:28-05:00"
55                },
56                {
57                        "eventAction": "registration",
58                        "eventDate": "1992-03-31T00:00:00-05:00"
59                }
60        ],
61        "links": [
62                {
63                        "value": "https://rdap.arin.net/registry/ip/192.154.4.0",
64                        "rel": "self",
65                        "type": "application/rdap+json",
66                        "href": "https://rdap.arin.net/registry/ip/192.154.4.0"
67                },
68                {
69                        "value": "https://rdap.arin.net/registry/ip/192.154.4.0",
70                        "rel": "alternate",
71                        "type": "application/xml",
72                        "href": "https://whois.arin.net/rest/net/NET-192-154-4-0-1"
73                }
74        ],
75        "entities": [
76                {
77                        "handle": "UCBED",
78                        "vcardArray": [
79                                "vcard",
80                                [
81                                        [
82                                                "version",
83                                                {},
84                                                "text",
85                                                "4.0"
86                                        ],
87                                        [
88                                                "fn",
89                                                {},
90                                                "text",
91                                                "University of California, Berkeley"
92                                        ],
93                                        [
94                                                "adr",
95                                                {
96                                                        "label": "IST - Telecommunications\nATTN Network Services and Operations\n2850 Telegraph Ave\nNOTE See Comment for DMCA INFO\nBerkeley\nCA\n94705\nUnited States"
97                                                },
98                                                "text",
99                                                [
100                                                        "",
101                                                        "",
102                                                        "",
103                                                        "",
104                                                        "",
105                                                        "",
106                                                        ""
107                                                ]
108                                        ],
109                                        [
110                                                "kind",
111                                                {},
112                                                "text",
113                                                "org"
114                                        ]
115                                ]
116                        ],
117                        "roles": [
118                                "registrant"
119                        ],
120                        "remarks": [
121                                {
122                                        "title": "Registration Comments",
123                                        "description": [
124                                                "DMCA Designated Agent is [email protected]"
125                                        ]
126                                }
127                        ],
128                        "links": [
129                                {
130                                        "value": "https://rdap.arin.net/registry/ip/192.154.4.0",
131                                        "rel": "self",
132                                        "type": "application/rdap+json",
133                                        "href": "https://rdap.arin.net/registry/entity/UCBED"
134                                },
135                                {
136                                        "value": "https://rdap.arin.net/registry/ip/192.154.4.0",
137                                        "rel": "alternate",
138                                        "type": "application/xml",
139                                        "href": "https://whois.arin.net/rest/org/UCBED"
140                                }
141                        ],
142                        "events": [
143                                {
144                                        "eventAction": "last changed",
145                                        "eventDate": "2021-09-07T12:47:10-04:00"
146                                },
147                                {
148                                        "eventAction": "registration",
149                                        "eventDate": "1992-03-17T00:00:00-05:00"
150                                }
151                        ],
152                        "entities": [
153                                {
154                                        "handle": "UCB-NOC-ARIN",
155                                        "vcardArray": [
156                                                "vcard",
157                                                [
158                                                        [
159                                                                "version",
160                                                                {},
161                                                                "text",
162                                                                "4.0"
163                                                        ],
164                                                        [
165                                                                "adr",
166                                                                {
167                                                                        "label": "2850 Telegraph Ave\nBerkeley\nCA\n94720\nUnited States"
168                                                                },
169                                                                "text",
170                                                                [
171                                                                        "",
172                                                                        "",
173                                                                        "",
174                                                                        "",
175                                                                        "",
176                                                                        "",
177                                                                        ""
178                                                                ]
179                                                        ],
180                                                        [
181                                                                "fn",
182                                                                {},
183                                                                "text",
184                                                                "IST Communication and Network Services"
185                                                        ],
186                                                        [
187                                                                "org",
188                                                                {},
189                                                                "text",
190                                                                "IST Communication and Network Services"
191                                                        ],
192                                                        [
193                                                                "kind",
194                                                                {},
195                                                                "text",
196                                                                "group"
197                                                        ],
198                                                        [
199                                                                "email",
200                                                                {},
201                                                                "text",
202                                                                "[email protected]"
203                                                        ],
204                                                        [
205                                                                "tel",
206                                                                {
207                                                                        "type": [
208                                                                                "work",
209                                                                                "voice"
210                                                                        ]
211                                                                },
212                                                                "text",
213                                                                "+1-510-664-9000"
214                                                        ]
215                                                ]
216                                        ],
217                                        "roles": [
218                                                "noc",
219                                                "technical",
220                                                "administrative"
221                                        ],
222                                        "links": [
223                                                {
224                                                        "value": "https://rdap.arin.net/registry/ip/192.154.4.0",
225                                                        "rel": "self",
226                                                        "type": "application/rdap+json",
227                                                        "href": "https://rdap.arin.net/registry/entity/UCB-NOC-ARIN"
228                                                },
229                                                {
230                                                        "value": "https://rdap.arin.net/registry/ip/192.154.4.0",
231                                                        "rel": "alternate",
232                                                        "type": "application/xml",
233                                                        "href": "https://whois.arin.net/rest/poc/UCB-NOC-ARIN"
234                                                }
235                                        ],
236                                        "events": [
237                                                {
238                                                        "eventAction": "last changed",
239                                                        "eventDate": "2023-05-31T10:15:15-04:00"
240                                                }
241                                        ],
242                                        "status": [
243                                                "validated"
244                                        ],
245                                        "port43": "whois.arin.net",
246                                        "objectClassName": "entity"
247                                },
248                                {
249                                        "handle": "UCBSE-ARIN",
250                                        "vcardArray": [
251                                                "vcard",
252                                                [
253                                                        [
254                                                                "version",
255                                                                {},
256                                                                "text",
257                                                                "4.0"
258                                                        ],
259                                                        [
260                                                                "adr",
261                                                                {
262                                                                        "label": "2850 Telegraph Ave\nBerkeley\nCA\n94705\nUnited States"
263                                                                },
264                                                                "text",
265                                                                [
266                                                                        "",
267                                                                        "",
268                                                                        "",
269                                                                        "",
270                                                                        "",
271                                                                        "",
272                                                                        ""
273                                                                ]
274                                                        ],
275                                                        [
276                                                                "fn",
277                                                                {},
278                                                                "text",
279                                                                "UCB-SECURIT-ARIN"
280                                                        ],
281                                                        [
282                                                                "org",
283                                                                {},
284                                                                "text",
285                                                                "UCB-SECURIT-ARIN"
286                                                        ],
287                                                        [
288                                                                "kind",
289                                                                {},
290                                                                "text",
291                                                                "group"
292                                                        ],
293                                                        [
294                                                                "email",
295                                                                {},
296                                                                "text",
297                                                                "[email protected]"
298                                                        ],
299                                                        [
300                                                                "tel",
301                                                                {
302                                                                        "type": [
303                                                                                "work",
304                                                                                "voice"
305                                                                        ]
306                                                                },
307                                                                "text",
308                                                                "+1-510-664-9000"
309                                                        ]
310                                                ]
311                                        ],
312                                        "roles": [
313                                                "abuse"
314                                        ],
315                                        "links": [
316                                                {
317                                                        "value": "https://rdap.arin.net/registry/ip/192.154.4.0",
318                                                        "rel": "self",
319                                                        "type": "application/rdap+json",
320                                                        "href": "https://rdap.arin.net/registry/entity/UCBSE-ARIN"
321                                                },
322                                                {
323                                                        "value": "https://rdap.arin.net/registry/ip/192.154.4.0",
324                                                        "rel": "alternate",
325                                                        "type": "application/xml",
326                                                        "href": "https://whois.arin.net/rest/poc/UCBSE-ARIN"
327                                                }
328                                        ],
329                                        "events": [
330                                                {
331                                                        "eventAction": "last changed",
332                                                        "eventDate": "2022-09-07T09:21:32-04:00"
333                                                },
334                                                {
335                                                        "eventAction": "registration",
336                                                        "eventDate": "2016-04-18T17:15:50-04:00"
337                                                }
338                                        ],
339                                        "status": [
340                                                "validated"
341                                        ],
342                                        "port43": "whois.arin.net",
343                                        "objectClassName": "entity"
344                                }
345                        ],
346                        "port43": "whois.arin.net",
347                        "objectClassName": "entity"
348                },
349                {
350                        "handle": "UCB-NOC-ARIN",
351                        "vcardArray": [
352                                "vcard",
353                                [
354                                        [
355                                                "version",
356                                                {},
357                                                "text",
358                                                "4.0"
359                                        ],
360                                        [
361                                                "adr",
362                                                {
363                                                        "label": "2850 Telegraph Ave\nBerkeley\nCA\n94720\nUnited States"
364                                                },
365                                                "text",
366                                                [
367                                                        "",
368                                                        "",
369                                                        "",
370                                                        "",
371                                                        "",
372                                                        "",
373                                                        ""
374                                                ]
375                                        ],
376                                        [
377                                                "fn",
378                                                {},
379                                                "text",
380                                                "IST Communication and Network Services"
381                                        ],
382                                        [
383                                                "org",
384                                                {},
385                                                "text",
386                                                "IST Communication and Network Services"
387                                        ],
388                                        [
389                                                "kind",
390                                                {},
391                                                "text",
392                                                "group"
393                                        ],
394                                        [
395                                                "email",
396                                                {},
397                                                "text",
398                                                "[email protected]"
399                                        ],
400                                        [
401                                                "tel",
402                                                {
403                                                        "type": [
404                                                                "work",
405                                                                "voice"
406                                                        ]
407                                                },
408                                                "text",
409                                                "+1-510-664-9000"
410                                        ]
411                                ]
412                        ],
413                        "roles": [
414                                "technical"
415                        ],
416                        "links": [
417                                {
418                                        "value": "https://rdap.arin.net/registry/ip/192.154.4.0",
419                                        "rel": "self",
420                                        "type": "application/rdap+json",
421                                        "href": "https://rdap.arin.net/registry/entity/UCB-NOC-ARIN"
422                                },
423                                {
424                                        "value": "https://rdap.arin.net/registry/ip/192.154.4.0",
425                                        "rel": "alternate",
426                                        "type": "application/xml",
427                                        "href": "https://whois.arin.net/rest/poc/UCB-NOC-ARIN"
428                                }
429                        ],
430                        "events": [
431                                {
432                                        "eventAction": "last changed",
433                                        "eventDate": "2023-05-31T10:15:15-04:00"
434                                }
435                        ],
436                        "status": [
437                                "validated"
438                        ],
439                        "port43": "whois.arin.net",
440                        "objectClassName": "entity"
441                }
442        ],
443        "port43": "whois.arin.net",
444        "status": [
445                "active"
446        ],
447        "objectClassName": "ip network",
448        "cidr0_cidrs": [
449                {
450                        "v4prefix": "192.154.4.0",
451                        "length": 24
452                }
453        ],
454        "arin_originas0_originautnums": []
455}

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FAQ

What is the netmask for 192.154.4.0/23?

The netmask for CIDR 192.154.4.0/23 is 255.255.254.0. This defines the number of available IP addresses in the CIDR range

What are the network start and end addresses in CIDR 192.154.4.0/23?

The network start address in CIDR 192.154.4.0/23 is 192.154.4.0 and the end address is 192.154.5.255

What is the ASN of 192.154.4.0/23?

The ASN of 192.154.4.0/23 is 25