131.255.172.0/23
Currently announced by AS262491 Saulo J. de Moura Borba, in the routed prefix 131.255.172.0/23.
- Current ASN
- AS262491
- Saulo J. de Moura Borba
- Routed prefix
- 131.255.172.0/23
- Most specific route covering this prefix
- ASNs over time
- 1
- 2 announcement records
- RIR allocation
- LACNIC
- Brazil · 131.255.172.0/22
Routing data · Nov 8, 2026, 10:26 UTC
ASN historyEvery routed prefix covering 131.255.172.0/23
| Prefix | ASN | Name | Registered country | First seen (UTC) | Last seen (UTC) | Status |
|---|---|---|---|---|---|---|
| 131.255.172.0/23 | AS262491 | Saulo J. de Moura Borba |  Brazil | Before monitoring | 2026-11-08 10:26 | Announcing |
| 131.255.172.0/22 | AS262491 | Saulo J. de Moura Borba | Brazil | Before monitoring | 2026-11-08 08:24 | Stopped |
More specific routes2 total
| Prefix | ASN | Name | Registered country | First seen (UTC) | Last seen (UTC) | Status |
|---|---|---|---|---|---|---|
| 131.255.172.0/24 | AS262491 | Saulo J. de Moura Borba | Brazil | Before monitoring | 2026-11-04 20:26 | Stopped |
| 131.255.173.0/24 | AS262491 | Saulo J. de Moura Borba | Brazil | Before monitoring | 2026-11-04 20:26 | Stopped |
Change logAll changes
| Detected (UTC) | Prefix | Change | ASN | Name | Previous ASN | Country |
|---|---|---|---|---|---|---|
| 2026-11-07 18:23 | 131.255.172.0/22 | Withdrawal | AS262491 | Saulo J. de Moura Borba | — | Brazil |
| 2026-11-05 02:20 | 131.255.172.0/22 | Withdrawal | AS262491 | Saulo J. de Moura Borba | — | Brazil |