187.31.100.0/22
Currently announced by AS29987 Sinfony6, in the routed prefix 187.31.100.0/22.
- Current ASN
- AS29987
- Sinfony6
- Routed prefix
- 187.31.100.0/22
- Most specific route covering this prefix
- ASNs over time
- 2
- 2 announcement records
- RIR allocation
- LACNIC
- Brazil · 187.31.100.0/22
Routing data · Oct 22, 2026, 22:19 UTC
ASN historyEvery routed prefix covering 187.31.100.0/22
| Prefix | ASN | Name | Registered country | First seen (UTC) | Last seen (UTC) | Status |
|---|---|---|---|---|---|---|
| 187.31.100.0/22 | AS29987 | Sinfony6 |  United States | Before monitoring | 2026-10-22 22:19 | Announcing |
| 187.31.0.0/16 | AS14571 | Oi S.A. - Em Recuperacao Judicial |  Brazil | Before monitoring | 2026-10-22 22:19 | Announcing |
More specific routes4 total
| Prefix | ASN | Name | Registered country | First seen (UTC) | Last seen (UTC) | Status |
|---|---|---|---|---|---|---|
| 187.31.100.0/24 | AS268188 | ROBSON LIMA DA SILVA PROVEDOR DE INTERNET | Brazil | 2026-10-22 18:21 | 2026-10-22 22:19 | Announcing |
| 187.31.101.0/24 | AS268188 | ROBSON LIMA DA SILVA PROVEDOR DE INTERNET | Brazil | 2026-10-22 18:21 | 2026-10-22 22:19 | Announcing |
| 187.31.102.0/24 | AS268188 | ROBSON LIMA DA SILVA PROVEDOR DE INTERNET | Brazil | 2026-10-22 18:21 | 2026-10-22 22:19 | Announcing |
| 187.31.103.0/24 | AS268188 | ROBSON LIMA DA SILVA PROVEDOR DE INTERNET | Brazil | 2026-10-22 18:21 | 2026-10-22 22:19 | Announcing |
Change logAll changes
The routes covering this address have had no origin changes since ASNBase started monitoring.