138.122.204.0/23
Currently announced by AS266224 INTERNET ULTRA, in the routed prefix 138.122.204.0/23.
- Current ASN
- AS266224
- INTERNET ULTRA
- Routed prefix
- 138.122.204.0/23
- Most specific route covering this prefix
- ASNs over time
- 2
- 4 announcement records
- RIR allocation
- LACNIC
- Brazil · 138.122.204.0/22
Routing data · Nov 2, 2026, 02:24 UTC
ASN historyEvery routed prefix covering 138.122.204.0/23
| Prefix | ASN | Name | Registered country | First seen (UTC) | Last seen (UTC) | Status |
|---|---|---|---|---|---|---|
| 138.122.204.0/23 | AS266224 | INTERNET ULTRA |  Brazil | 2026-10-26 06:21 | 2026-11-02 02:24 | Announcing |
| 138.122.204.0/23 | AS264326 | ATIVA NETWORK | Brazil | Before monitoring | 2026-10-26 04:20 | Stopped |
| 138.122.204.0/22 | AS266224 | INTERNET ULTRA | Brazil | 2026-10-26 06:21 | 2026-11-02 02:24 | Announcing |
| 138.122.204.0/22 | AS264326 | ATIVA NETWORK | Brazil | Before monitoring | 2026-10-26 04:20 | Stopped |
More specific routes4 total
| Prefix | ASN | Name | Registered country | First seen (UTC) | Last seen (UTC) | Status |
|---|---|---|---|---|---|---|
| 138.122.204.0/24 | AS266224 | INTERNET ULTRA | Brazil | 2026-10-26 06:21 | 2026-11-02 02:24 | Announcing |
| 138.122.205.0/24 | AS266224 | INTERNET ULTRA | Brazil | 2026-10-26 06:21 | 2026-11-02 02:24 | Announcing |
| 138.122.204.0/24 | AS264326 | ATIVA NETWORK | Brazil | Before monitoring | 2026-10-26 04:20 | Stopped |
| 138.122.205.0/24 | AS264326 | ATIVA NETWORK | Brazil | Before monitoring | 2026-10-26 04:20 | Stopped |
Change logAll changes
| Detected (UTC) | Prefix | Change | ASN | Name | Previous ASN | Country |
|---|---|---|---|---|---|---|
| 2026-10-26 06:21 | 138.122.204.0/23 | Origin change | AS266224 | INTERNET ULTRA | AS264326 | Brazil |
| 2026-10-26 06:21 | 138.122.204.0/22 | Origin change | AS266224 | INTERNET ULTRA | AS264326 | Brazil |