187.1.177.0/24
Currently announced by AS21574 CENTURY TELECOM, in the routed prefix 187.1.177.0/24.
- Current ASN
- AS21574
- CENTURY TELECOM
- Routed prefix
- 187.1.177.0/24
- Most specific route covering this prefix
- ASNs over time
- 1
- 3 announcement records
- RIR allocation
- LACNIC
- Brazil · 187.1.176.0/20
Routing data · Nov 11, 2026, 18:22 UTC
ASN historyEvery routed prefix covering 187.1.177.0/24
| Prefix | ASN | Name | Registered country | First seen (UTC) | Last seen (UTC) | Status |
|---|---|---|---|---|---|---|
| 187.1.177.0/24 | AS21574 | CENTURY TELECOM |  Brazil | 2026-11-11 14:22 | 2026-11-11 18:22 | Announcing |
| 187.1.176.0/21 | AS21574 | CENTURY TELECOM | Brazil | 2026-11-04 02:23 | 2026-11-09 00:25 | Stopped |
| 187.1.176.0/20 | AS21574 | CENTURY TELECOM | Brazil | Before monitoring | 2026-11-11 18:22 | Announcing |
More specific routes0 total
No more specific routes inside this prefix.
Change logAll changes
| Detected (UTC) | Prefix | Change | ASN | Name | Previous ASN | Country |
|---|---|---|---|---|---|---|
| 2026-11-11 14:22 | 187.1.177.0/24 | New announcement | AS21574 | CENTURY TELECOM | — | Brazil |
| 2026-11-09 02:22 | 187.1.176.0/21 | Withdrawal | AS21574 | CENTURY TELECOM | — | Brazil |
| 2026-11-05 18:22 | 187.1.176.0/21 | Withdrawal | AS21574 | CENTURY TELECOM | — | Brazil |
| 2026-11-04 02:23 | 187.1.176.0/21 | New announcementNo longer announced | AS21574 | CENTURY TELECOM | — | Brazil |