Block 173.229.128.0
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| Range | 173.229.128.0 - 173.229.255.255 |
|---|---|
| Prefix | 173.229.128.0/17 |
| Size | 32,768 addresses |
| Status | allocated — operator-held |
| Registry | arin |
| Country (delegation) | US |
| Date | 20100301 |
| Opaque id | 708953f0dda35cc8233965966af0627c |
| Block UUID | 61f30d84-b3ac-53ca-90e1-13b122e69b75 |
| Probes | 1,242 |
| RDAP state | own — the registry object is this block |
| RDAP service | rdap.arin.net |
| RDAP fetched | 2026-09-10T23:13:20Z |
| Flags | none |
RIR delegation record
| registry | arin |
|---|---|
| country | US |
| type | ipv4 |
| start | 173.229.128.0 |
| value | 32,768 |
| date | 20100301 |
| status | allocated |
| extensions | ['708953f0dda35cc8233965966af0627c'] |
RDAP summary
| handle | NET-173-229-128-0-1 |
|---|---|
| name | UPRR-IPV4-05 |
| type | DIRECT ALLOCATION |
| parent handle | NET-173-0-0-0-0 |
| start address | 173.229.128.0 |
| end address | 173.229.255.255 |
| country | — |
| organization | Union Pacific Railroad Company |
| events | {"last changed": "2021-12-14T20:28:49-05:00", "registration": "2010-03-01T18:32:49-05:00"} |
| entities | 4: abuse × 1, noc × 1, registrant × 1, technical × 1 (contact details are not published) |
Probes in this block
1,242 probes; the first 60 are listed. An asterisk means phase 3 heard something back.
173.229.131.2 173.229.131.3 173.229.131.5 173.229.131.7 173.229.131.11 173.229.131.13 173.229.131.17 173.229.131.19 173.229.131.23 173.229.131.29 173.229.131.31 173.229.131.37 173.229.131.41 173.229.131.43 173.229.131.47 173.229.131.53 173.229.131.59 173.229.131.61 173.229.131.67 173.229.131.71 173.229.131.73 173.229.131.79 173.229.131.83 173.229.131.89 173.229.131.97 173.229.131.101 173.229.131.103 173.229.131.107 173.229.131.109 173.229.131.113 173.229.131.127 173.229.131.131 173.229.131.137 173.229.131.139 173.229.131.149 173.229.131.151 173.229.131.157 173.229.131.163 173.229.131.167 173.229.131.173 173.229.131.179 173.229.131.181 173.229.131.191 173.229.131.193 173.229.131.197 173.229.131.199 173.229.131.211 173.229.131.223 173.229.131.227 173.229.131.229 173.229.131.233 173.229.131.239 173.229.131.241 173.229.131.251 173.229.137.2 173.229.137.3 173.229.137.5 173.229.137.7 173.229.137.11 173.229.137.13
Who operates this: the layers, side by side
| Delegation file | allocated, US, 20100301 |
|---|---|
| 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.