Network · data from 2026-11-12
AS3423 ATTIS-ASN3423 - AT&T Enterprises, LLC
Registry name: ATTIS-ASN3423 - AT&T Enterprises, LLC, US · not in PeeringDB
Announced routes
Every prefix a peer of the route collectors sees with origin AS3423, things to look at first. Visibility = full-table peers that see it, of 673 (IPv4) and 636 (IPv6) on 75 collectors. Also as routes.csv.
| 12.96.43.0/24 | No ROA | None | 673 100% |
| 165.224.128.0/23 | No ROA | None | 673 100% |
| 165.224.130.0/23 | No ROA | None | 673 100% |
| 165.224.132.0/24 | No ROA | None | 673 100% |
| 165.224.134.0/24 | No ROA | None | 673 100% |
| 165.224.136.0/24 | No ROA | None | 673 100% |
| 165.224.140.0/24 | No ROA | None | 673 100% |
| 2610:e8::/33 | No ROA | None | 634 100% |
| 2610:e8:8000::/33 | No ROA | None | 634 100% |
AS-SET
AS3423 isn't in PeeringDB, where networks name their AS-SET.
Fix list
The changes that would bring RPKI, the IRR and what's announced into line. Some are deliberate (a route object kept for a backup route, say); the network decides. All 43 are in fix.csv.
- ROA: none9
- Route object: none9
- Route object: not announced25
| Change | Prefix or set | Detail |
|---|---|---|
| ROA: none | 12.96.43.0/24 | No ROA covers it. Add a ROA for AS3423, maxLength 24. |
| Route object: none | 12.96.43.0/24 | No route object for it. Add a route object with origin AS3423 in the RIR database for the space. |
| ROA: none | 165.224.128.0/23 | No ROA covers it. Add a ROA for AS3423, maxLength 23. |
| Route object: none | 165.224.128.0/23 | No route object for it. Add a route object with origin AS3423 in the RIR database for the space. |
| ROA: none | 165.224.130.0/23 | No ROA covers it. Add a ROA for AS3423, maxLength 23. |
| Route object: none | 165.224.130.0/23 | No route object for it. Add a route object with origin AS3423 in the RIR database for the space. |
| ROA: none | 165.224.132.0/24 | No ROA covers it. Add a ROA for AS3423, maxLength 24. |
| Route object: none | 165.224.132.0/24 | No route object for it. Add a route object with origin AS3423 in the RIR database for the space. |
| ROA: none | 165.224.134.0/24 | No ROA covers it. Add a ROA for AS3423, maxLength 24. |
| Route object: none | 165.224.134.0/24 | No route object for it. Add a route object with origin AS3423 in the RIR database for the space. |
| ROA: none | 165.224.136.0/24 | No ROA covers it. Add a ROA for AS3423, maxLength 24. |
| Route object: none | 165.224.136.0/24 | No route object for it. Add a route object with origin AS3423 in the RIR database for the space. |
| ROA: none | 165.224.140.0/24 | No ROA covers it. Add a ROA for AS3423, maxLength 24. |
| Route object: none | 165.224.140.0/24 | No route object for it. Add a route object with origin AS3423 in the RIR database for the space. |
| ROA: none | 2610:e8::/33 | No ROA covers it. Add a ROA for AS3423, maxLength 33. |
| Route object: none | 2610:e8::/33 | No route object for it. Add a route object with origin AS3423 in the RIR database for the space. |
| ROA: none | 2610:e8:8000::/33 | No ROA covers it. Add a ROA for AS3423, maxLength 33. |
| Route object: none | 2610:e8:8000::/33 | No route object for it. Add a route object with origin AS3423 in the RIR database for the space. |
Route objects not announced
Route objects with origin AS3423 whose prefix no peer sees AS3423 announce. Many are kept on purpose (backup routes, space announced only in some places).
| 204.193.231.0/24 | ARIN | Valid |
| 2602:fbdc:2::/48 | ARIN | Valid |
| 2602:fbdc:4::/48 | ARIN | Valid |
| 2602:fbdc:6::/48 | ARIN | Valid |
| 2602:fbdc:a::/48 | ARIN | Valid |
| 2602:fbdc:b::/48 | ARIN | Valid |
| 2602:fbdc:d::/48 | ARIN | Valid |
| 2602:fbdc:e::/48 | ARIN | Valid |
| 2602:fbdc:f::/48 | ARIN | Valid |
| 2602:fbdc:14::/48 | ARIN | Valid |
| 2602:fbdc:80::/48 | ARIN | Valid |
| 2602:fbdc:81::/48 | ARIN | Valid |
| 2602:fbdc:82::/48 | ARIN | Valid |
| 2602:fbdc:83::/48 | ARIN | Valid |
| 2602:fbdc:84::/48 | ARIN | Valid |
| 2602:fbdc:85::/48 | ARIN | Valid |
| 2602:fbdc:86::/48 | ARIN | Valid |
| 2602:fbdc:87::/48 | ARIN | Valid |
| 2602:fbdc:88::/48 | ARIN | Valid |
| 2602:fbdc:89::/48 | ARIN | Valid |
| 2602:fbdc:8a::/48 | ARIN | Valid |
| 2602:fbdc:8b::/48 | ARIN | Valid |
| 2602:fbdc:8c::/48 | ARIN | Valid |
| 2602:fbdc:8d::/48 | ARIN | Valid |
| 2602:fbdc:8e::/48 | ARIN | Valid |
Routes: the 08:00 UTC snapshots of 2026-11-12 from 75 RIPE RIS and RouteViews collectors. RPKI: our rpki-client run before the snapshot. IRR: the day's dumps of the five RIR databases and RADB's mirrors. The LEVEL3 and IDNIC databases publish no dump and aren't read, so route objects only there count as none.