bgptoIP PREFIX
166.203.128.0/17
Originated by AS20057 · ATT-MOBILITY-LLC-AS20057 - AT&T Enterprises, LLC
AnnouncedUSARIN
WEBSITE PREVIEWNo public website in RIPE or PeeringDBAS20057
RPKI & ROA validation
CURRENT STATE
valid
No matching VRP was returned by RIPE Routinator.
| ROA prefix | Origin | Max length | Status |
|---|---|---|---|
| 166.203.128.0/17 | AS20057 | /17 | valid |
| 166.203.0.0/16 | AS20057 | /16 | invalid_length |
| 166.200.0.0/14 | AS7018 | /14 | invalid_length |
Routing registry consistency
| 166.203.128.0/17 | AS20057 — ATT-MOBILITY-LLC-AS20057 - AT&T Enterprises, LLC | Seen in BGP | ARIN |
| 166.203.240.0/21 | AS20057 — ATT-MOBILITY-LLC-AS20057 - AT&T Enterprises, LLC | Seen in BGP | ARIN |
| 166.203.250.0/24 | AS20057 — ATT-MOBILITY-LLC-AS20057 - AT&T Enterprises, LLC | Seen in BGP | ARIN |
| 166.203.204.0/23 | AS20057 — ATT-MOBILITY-LLC-AS20057 - AT&T Enterprises, LLC | Seen in BGP | ARIN |
| 166.203.196.0/22 | AS20057 — ATT-MOBILITY-LLC-AS20057 - AT&T Enterprises, LLC | Seen in BGP | ARIN |
| 166.203.200.0/24 | AS20057 — ATT-MOBILITY-LLC-AS20057 - AT&T Enterprises, LLC | Seen in BGP | ARIN |
| 166.203.128.0/20 | AS20057 — ATT-MOBILITY-LLC-AS20057 - AT&T Enterprises, LLC | Seen in BGP | ARIN |
| 166.203.192.0/22 | AS20057 — ATT-MOBILITY-LLC-AS20057 - AT&T Enterprises, LLC | Seen in BGP | ARIN |
| 166.203.206.0/24 | AS20057 — ATT-MOBILITY-LLC-AS20057 - AT&T Enterprises, LLC | Seen in BGP | ARIN |
| 166.203.248.0/23 | AS20057 — ATT-MOBILITY-LLC-AS20057 - AT&T Enterprises, LLC | Seen in BGP | ARIN |
| 166.203.208.0/20 | AS20057 — ATT-MOBILITY-LLC-AS20057 - AT&T Enterprises, LLC | Seen in BGP | ARIN |
| 166.203.224.0/20 | AS20057 — ATT-MOBILITY-LLC-AS20057 - AT&T Enterprises, LLC | Seen in BGP | ARIN |
| 166.203.160.0/20 | AS20057 — ATT-MOBILITY-LLC-AS20057 - AT&T Enterprises, LLC | Seen in BGP | ARIN |
| 166.203.176.0/20 | AS20057 — ATT-MOBILITY-LLC-AS20057 - AT&T Enterprises, LLC | Seen in BGP | ARIN |
| 166.200.0.0/14 | AS7018 — ATT-INTERNET4 - AT&T Enterprises, LLC | Seen in BGP | ARIN |
| 166.203.0.0/16 | AS20057 — ATT-MOBILITY-LLC-AS20057 - AT&T Enterprises, LLC | Seen in BGP | ARIN, LEVEL3 |
Recent RPKI history
| Date | Covered prefix | VRPs | Max length |
|---|---|---|---|
| 30/09/2026 | 166.203.128.0/17 | 1 | /17 |
| 29/09/2026 | 166.203.128.0/17 | 1 | /17 |
| 28/09/2026 | 166.203.128.0/17 | 1 | /17 |
| 27/09/2026 | 166.203.128.0/17 | 1 | /17 |
| 26/09/2026 | 166.203.128.0/17 | 1 | /17 |
| 25/09/2026 | 166.203.128.0/17 | 1 | /17 |
| 24/09/2026 | 166.203.128.0/17 | 1 | /17 |
| 23/09/2026 | 166.203.128.0/17 | 1 | /17 |
| 22/09/2026 | 166.203.128.0/17 | 1 | /17 |
| 21/09/2026 | 166.203.128.0/17 | 1 | /17 |
| 20/09/2026 | 166.203.128.0/17 | 1 | /17 |
| 19/09/2026 | 166.203.128.0/17 | 1 | /17 |