170.81.172.0/23
Currently announced by AS28296 Acessa Telecomunicações Ltda, in the routed prefix 170.81.172.0/23.
- Current ASN
- AS28296
- Acessa Telecomunicações Ltda
- Routed prefix
- 170.81.172.0/23
- Most specific route covering this prefix
- ASNs over time
- 2
- 3 announcement records
- RIR allocation
- LACNIC
- Brazil · 170.81.172.0/22
Routing data · Nov 8, 2026, 10:26 UTC
ASN historyEvery routed prefix covering 170.81.172.0/23
| Prefix | ASN | Name | Registered country | First seen (UTC) | Last seen (UTC) | Status |
|---|---|---|---|---|---|---|
| 170.81.172.0/23 | AS28296 | Acessa Telecomunicações Ltda |  Brazil | Before monitoring | 2026-11-08 10:26 | Announcing |
| 170.81.172.0/23 | AS264100 | RIO CABLE TELECOM | Brazil | Before monitoring | 2026-11-04 20:26 | Stopped |
| 170.81.172.0/22 | AS264100 | RIO CABLE TELECOM | Brazil | Before monitoring | 2026-11-08 10:26 | Announcing |
More specific routes2 total
| Prefix | ASN | Name | Registered country | First seen (UTC) | Last seen (UTC) | Status |
|---|---|---|---|---|---|---|
| 170.81.172.0/24 | AS264100 | RIO CABLE TELECOM | Brazil | Before monitoring | 2026-11-04 20:26 | Stopped |
| 170.81.173.0/24 | AS264100 | RIO CABLE TELECOM | Brazil | Before monitoring | 2026-11-04 20:26 | Stopped |
Change logAll changes
| Detected (UTC) | Prefix | Change | ASN | Name | Previous ASN | Country |
|---|---|---|---|---|---|---|
| 2026-11-04 02:23 | 170.81.172.0/23 | WithdrawalAnnounced again | AS28296 | Acessa Telecomunicações Ltda | — | Brazil |