Block 131.157.0.0
← back to the map index · 131.0.0.0/8
| Range | 131.157.0.0 - 131.157.255.255 |
|---|---|
| Prefix | 131.157.0.0/16 |
| Size | 65,536 addresses |
| Status | allocated — operator-held |
| Registry | arin |
| Country (delegation) | US |
| Date | 19881206 |
| Opaque id | 1fe103be73eb6cb8288d7eef3cfc9b8a |
| Block UUID | e2396cb2-bd1b-5e5e-8c23-84f7e29a65eb |
| Probes | 2,916 |
| RDAP state | own — the registry object is this block |
| RDAP service | rdap.arin.net |
| RDAP fetched | 2026-09-10T23:10:09Z |
| Flags | none |
RIR delegation record
| registry | arin |
|---|---|
| country | US |
| type | ipv4 |
| start | 131.157.0.0 |
| value | 65,536 |
| date | 19881206 |
| status | allocated |
| extensions | ['1fe103be73eb6cb8288d7eef3cfc9b8a'] |
RDAP summary
| handle | NET-131-157-0-0-1 |
|---|---|
| name | LIBRAINC |
| type | DIRECT ALLOCATION |
| parent handle | NET-131-0-0-0-0 |
| start address | 131.157.0.0 |
| end address | 131.157.255.255 |
| country | — |
| organization | Librascope Corporation |
| events | {"last changed": "2021-12-14T20:28:37-05:00", "registration": "1988-12-06T00:00:00-05:00"} |
| entities | 1: registrant × 1 (contact details are not published) |
Probes in this block
2,916 probes; the first 60 are listed. An asterisk means phase 3 heard something back.
131.157.2.2 131.157.2.3 131.157.2.5 131.157.2.7 131.157.2.11 131.157.2.13 131.157.2.17 131.157.2.19 131.157.2.23 131.157.2.29 131.157.2.31 131.157.2.37 131.157.2.41 131.157.2.43 131.157.2.47 131.157.2.53 131.157.2.59 131.157.2.61 131.157.2.67 131.157.2.71 131.157.2.73 131.157.2.79 131.157.2.83 131.157.2.89 131.157.2.97 131.157.2.101 131.157.2.103 131.157.2.107 131.157.2.109 131.157.2.113 131.157.2.127 131.157.2.131 131.157.2.137 131.157.2.139 131.157.2.149 131.157.2.151 131.157.2.157 131.157.2.163 131.157.2.167 131.157.2.173 131.157.2.179 131.157.2.181 131.157.2.191 131.157.2.193 131.157.2.197 131.157.2.199 131.157.2.211 131.157.2.223 131.157.2.227 131.157.2.229 131.157.2.233 131.157.2.239 131.157.2.241 131.157.2.251 131.157.3.2 131.157.3.3 131.157.3.5 131.157.3.7 131.157.3.11 131.157.3.13
Who operates this: the layers, side by side
| Delegation file | allocated, US, 19881206 |
|---|---|
| Registry object | own — the registry object is this block |
| Routing | not recorded |
| Authorization | not recorded |
| DNS pointing here | not recorded |
| Certificate | none presented |
The registry's verbatim RDAP answer is kept in the local work product dataflow.out/02_ip_block.json and is not published, because it carries registrant contact details.