Network · data from 2026-11-12
AS12187 Metropolitan Transportation Authority - New York City Transit
Registry name: MTAHQ1 - Metropolitan Transportation Authority, US · PeeringDB
15IPv4 routes
0.0% RPKI valid · 6.7% with a route object
0IPv6 routes
0RPKI invalid
0 origin · 0 maxLength
15No ROA
14 with no route object for this origin
1Low visibility
seen by under 10% of full-table peers
1Route objects not announced
registered with origin AS12187, seen from no peer
Announced routes
Every prefix a peer of the route collectors sees with origin AS12187, 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.
| 170.28.16.0/24 | No ROA | Other origin onlycovered by 170.28.16.0/23 | 672 100% |
| 170.28.17.0/24 | No ROA | Other origin onlycovered by 170.28.16.0/23 | 672 100% |
| 170.28.32.0/19 | No ROA | None | 672 100% |
| 170.28.136.0/21 | No ROA | None | 672 100% |
| 170.28.136.0/24 | No ROA | None | 672 100% |
| 170.28.137.0/24 | No ROA | None | 672 100% |
| 170.28.139.0/24 | No ROA | None | 672 100% |
| 170.28.140.0/24 | No ROA | None | 672 100% |
| 170.28.142.0/24 | No ROA | None | 672 100% |
| 170.28.64.0/19 | No ROA | None | 669 99% |
| 170.28.64.0/24 | No ROA | None | 669 99% |
| 170.28.128.0/21 | No ROA | None | 669 99% |
| 170.28.128.0/24 | No ROA | None | 669 99% |
| 170.28.20.0/24 | No ROA | Other origin only | 2 0%low visibility |
| 170.28.16.0/23 | No ROA | Other IRR onlyRADB | 672 100% |
AS-SET
AS12187's PeeringDB record names no 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 31 are in fix.csv.
- ROA: none15
- Route object: none14
- Route object: RIR1
- Route object: not announced1
| Change | Prefix or set | Detail |
|---|---|---|
| ROA: none | 170.28.16.0/24 | No ROA covers it. Add a ROA for AS12187, maxLength 24. |
| Route object: none | 170.28.16.0/24 | Route objects for it name AS46887. A route object for 170.28.16.0/23 with origin AS12187 covers it (filters allowing more-specifics accept it). Add a route object with origin AS12187 in the RIR database for the space. |
| ROA: none | 170.28.17.0/24 | No ROA covers it. Add a ROA for AS12187, maxLength 24. |
| Route object: none | 170.28.17.0/24 | Route objects for it name AS46887. A route object for 170.28.16.0/23 with origin AS12187 covers it (filters allowing more-specifics accept it). Add a route object with origin AS12187 in the RIR database for the space. |
| ROA: none | 170.28.32.0/19 | No ROA covers it. Add a ROA for AS12187, maxLength 19. |
| Route object: none | 170.28.32.0/19 | No route object for it. Add a route object with origin AS12187 in the RIR database for the space. |
| ROA: none | 170.28.136.0/21 | No ROA covers it. Add a ROA for AS12187, maxLength 21. |
| Route object: none | 170.28.136.0/21 | No route object for it. Add a route object with origin AS12187 in the RIR database for the space. |
| ROA: none | 170.28.136.0/24 | No ROA covers it. Add a ROA for AS12187, maxLength 24. |
| Route object: none | 170.28.136.0/24 | No route object for it. Add a route object with origin AS12187 in the RIR database for the space. |
| ROA: none | 170.28.137.0/24 | No ROA covers it. Add a ROA for AS12187, maxLength 24. |
| Route object: none | 170.28.137.0/24 | No route object for it. Add a route object with origin AS12187 in the RIR database for the space. |
| ROA: none | 170.28.139.0/24 | No ROA covers it. Add a ROA for AS12187, maxLength 24. |
| Route object: none | 170.28.139.0/24 | No route object for it. Add a route object with origin AS12187 in the RIR database for the space. |
| ROA: none | 170.28.140.0/24 | No ROA covers it. Add a ROA for AS12187, maxLength 24. |
| Route object: none | 170.28.140.0/24 | No route object for it. Add a route object with origin AS12187 in the RIR database for the space. |
| ROA: none | 170.28.142.0/24 | No ROA covers it. Add a ROA for AS12187, maxLength 24. |
| Route object: none | 170.28.142.0/24 | No route object for it. Add a route object with origin AS12187 in the RIR database for the space. |
| ROA: none | 170.28.64.0/19 | No ROA covers it. Add a ROA for AS12187, maxLength 19. |
| Route object: none | 170.28.64.0/19 | No route object for it. Add a route object with origin AS12187 in the RIR database for the space. |
| ROA: none | 170.28.64.0/24 | No ROA covers it. Add a ROA for AS12187, maxLength 24. |
| Route object: none | 170.28.64.0/24 | No route object for it. Add a route object with origin AS12187 in the RIR database for the space. |
| ROA: none | 170.28.128.0/21 | No ROA covers it. Add a ROA for AS12187, maxLength 21. |
| Route object: none | 170.28.128.0/21 | No route object for it. Add a route object with origin AS12187 in the RIR database for the space. |
| ROA: none | 170.28.128.0/24 | No ROA covers it. Add a ROA for AS12187, maxLength 24. |
| Route object: none | 170.28.128.0/24 | No route object for it. Add a route object with origin AS12187 in the RIR database for the space. |
| ROA: none | 170.28.20.0/24 | No ROA covers it. Add a ROA for AS12187, maxLength 24. |
| Route object: none | 170.28.20.0/24 | Route objects for it name AS46887. Add a route object with origin AS12187 in the RIR database for the space. |
| ROA: none | 170.28.16.0/23 | No ROA covers it. Add a ROA for AS12187, maxLength 23. |
| Route object: RIR | 170.28.16.0/23 | Route object only in RADB. Add it in the RIR database for the space. |
Route objects not announced
Route objects with origin AS12187 whose prefix no peer sees AS12187 announce. Many are kept on purpose (backup routes, space announced only in some places).
| 170.28.1.0/24 | RADB | No ROA |
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.