143.255.0.0/22
Currently announced by AS265140 DUPONT & SCHWANKE, in the routed prefix 143.255.0.0/22.
- Current ASN
- AS265140
- DUPONT & SCHWANKE
- Routed prefix
- 143.255.0.0/22
- Most specific route covering this prefix
- ASNs over time
- 1
- 1 announcement record
- RIR allocation
- LACNIC
- Brazil · 143.255.0.0/22
Routing data · Nov 8, 2026, 10:26 UTC
ASN historyEvery routed prefix covering 143.255.0.0/22
| Prefix | ASN | Name | Registered country | First seen (UTC) | Last seen (UTC) | Status |
|---|---|---|---|---|---|---|
| 143.255.0.0/22 | AS265140 | DUPONT & SCHWANKE |  Brazil | Before monitoring | 2026-11-08 10:26 | Announcing |
More specific routes4 total
| Prefix | ASN | Name | Registered country | First seen (UTC) | Last seen (UTC) | Status |
|---|---|---|---|---|---|---|
| 143.255.0.0/23 | AS265140 | DUPONT & SCHWANKE | Brazil | Before monitoring | 2026-11-08 10:26 | Announcing |
| 143.255.0.0/24 | AS265140 | DUPONT & SCHWANKE | Brazil | Before monitoring | 2026-11-08 10:26 | Announcing |
| 143.255.2.0/23 | AS265140 | DUPONT & SCHWANKE | Brazil | Before monitoring | 2026-11-08 10:26 | Announcing |
| 143.255.2.0/24 | AS265140 | DUPONT & SCHWANKE | Brazil | Before monitoring | 2026-11-08 10:26 | Announcing |
Change logAll changes
| Detected (UTC) | Prefix | Change | ASN | Name | Previous ASN | Country |
|---|---|---|---|---|---|---|
| 2026-11-04 10:21 | 143.255.0.0/22 | WithdrawalAnnounced again | AS265140 | DUPONT & SCHWANKE | — | Brazil |