Routing security
AS797 AMERITECH-AS
Unclassified ARIN
Announcements
What this network originates
Every prefix observed with AS797 as its origin, checked against RPKI and the IRR. Problems sort first.
| Prefix | RPKI | IRR | Vantage points |
|---|---|---|---|
| 12.153.241.0/24 | No ROA | No IRR | 52 |
| 67.98.173.0/24 | No ROA | No IRR | 52 |
| 135.209.64.0/19 | No ROA | No IRR | 52 |
| 135.209.96.0/19 | No ROA | No IRR | 52 |
| 135.209.146.0/23 | No ROA | No IRR | 52 |
| 135.209.148.0/22 | No ROA | No IRR | 52 |
| 135.209.152.0/22 | No ROA | No IRR | 52 |
| 135.209.156.0/24 | No ROA | No IRR | 52 |
| 135.209.158.0/23 | No ROA | No IRR | 52 |
| 135.209.160.0/21 | No ROA | No IRR | 52 |
| 135.209.168.0/24 | No ROA | No IRR | 52 |
| 135.209.208.0/20 | No ROA | No IRR | 52 |
| 135.209.208.0/24 | No ROA | No IRR | 52 |
| 135.209.209.0/24 | No ROA | No IRR | 52 |
| 135.209.224.0/20 | No ROA | No IRR | 52 |
| 170.35.208.0/20 | No ROA | No IRR | 51 |
| 170.35.224.0/20 | No ROA | No IRR | 52 |
| 192.150.169.0/24 | No ROA | IRR other origin | 52 |
| 198.180.219.0/24 | No ROA | No IRR | 52 |
| 204.107.19.0/24 | No ROA | No IRR | 52 |
| 144.160.0.0/15 | RPKI valid | IRR | 52 |
RPKI · ROAs
Route origin authorisations
Signed statements by address holders that AS797 may originate these prefixes, up to the maximum length shown.
| Prefix | Max length | Trust anchor |
|---|---|---|
| 144.160.0.0/15 | /15 | ARIN |
ROA-based and RPKI-valid-only prefix lists for routers are on asn.ipinfo.app.
RPKI · ASPA
Declared transit providers
This network has signed an ASPA record naming its transit providers. Each is compared against the upstreams observed in routing paths.
| AS | Network | ASPA | Routing paths |
|---|---|---|---|
| AS7018 | AT&T Enterprises, LLC | Declared | Observed |
An observed upstream that is not declared is not necessarily a leak: our upstream inference cannot tell a transit provider from a peer seen in the same position. A declared provider that is never observed is usually a backup path.
IRR
Registered route objects
Route objects naming AS797 as origin, across RADb, the RIR registries, ALTDB and NTTCOM. Objects that are registered but not announced come first: a stale object lets anyone who can spoof this origin through an IRR-built filter.
| Prefix | Source | Description | Maintainer | Changed | Routing |
|---|---|---|---|---|---|
| 144.160.0.0/15 | ARIN | AT&T Services, Inc. | MNT-ATTSE-Z | 2025-08-26 | Announced |
IRR
AS-sets
The as-set is what upstreams expand to build this network's customer filter. Sets that list AS797 directly show who expects to carry it.
No as-set lists this AS directly.
RPKI from rpki-client, validated 2026-10-15 12:09 UTC. IRR from ARIN, RADB, RIPE, ALTDB, APNIC, LACNIC, NTTCOM, AFRINIC, collected 2026-10-15. Cross-check on bgp.he.net.