IP PREFIX
42.81.172.0/24
Originated by AS58542 · CHINATELECOM-TIANJIN - Tianjij,300000
AnnouncedCNAPNIC
WEBSITE PREVIEWNo public website in RIPE or PeeringDBAS58542
RPKI & ROA validation
CURRENT STATE
valid
No matching VRP was returned by RIPE Routinator.
| ROA prefix | Origin | Max length | Status |
|---|---|---|---|
| 42.81.172.0/24 | AS58542 | /24 | valid |
| 42.81.0.0/16 | AS58542 | /16 | invalid_length |
Routing registry consistency
| 42.81.172.0/24 | AS58542 — CHINATELECOM-TIANJIN - Tianjij,300000 | Seen in BGP | RADB |
| 42.81.0.0/16 | AS58542 — CHINATELECOM-TIANJIN - Tianjij,300000 | Seen in BGP | RADB |
| 42.80.0.0/15 | AS17638 — CHINATELECOM-TJ-AS-AP - ASN for TIANJIN Provincial Net of CT | Seen in BGP | RADB |
Recent RPKI history
| Date | Covered prefix | VRPs | Max length |
|---|---|---|---|
| 24/09/2026 | 42.81.172.0/24 | 1 | /24 |
| 23/09/2026 | 42.81.172.0/24 | 1 | /24 |
| 22/09/2026 | 42.81.172.0/24 | 1 | /24 |
| 21/09/2026 | 42.81.172.0/24 | 1 | /24 |
| 20/09/2026 | 42.81.172.0/24 | 1 | /24 |
| 19/09/2026 | 42.81.172.0/24 | 1 | /24 |
| 18/09/2026 | 42.81.172.0/24 | 1 | /24 |
| 17/09/2026 | 42.81.172.0/24 | 1 | /24 |
| 16/09/2026 | 42.81.172.0/24 | 1 | /24 |
| 15/09/2026 | 42.81.172.0/24 | 1 | /24 |
| 14/09/2026 | 42.81.172.0/24 | 1 | /24 |
| 13/09/2026 | 42.81.172.0/24 | 1 | /24 |