AS12187
Metropolitan Transportation Authority Unknown registered in United States
16IPv4 prefixes
0IPv6 prefixes
#16,447AS Rank
327/327RIS visibility
#2,159Rank in United States
1999-04-13Allocated
Metropolitan Transportation Authority (AS12187) — Unknown, registered in United States. announces 16 IPv4 prefixes + 0 IPv6 prefixes. Rank in United States: #2159. Allocated: 1999-04-13.
IPv4 16IPv6 0
Announced prefixes · 16
- v4 170.28.128.0/21 unknown
- v4 170.28.128.0/24 unknown
- v4 170.28.136.0/21 unknown
- v4 170.28.136.0/24 unknown
- v4 170.28.137.0/24 unknown
- v4 170.28.139.0/24 unknown
- v4 170.28.140.0/24 unknown
- v4 170.28.142.0/24 unknown
- v4 170.28.143.0/24 unknown
- v4 170.28.16.0/23 unknown
- v4 170.28.16.0/24 unknown
- v4 170.28.17.0/24 unknown
- v4 170.28.20.0/24 unknown
- v4 170.28.32.0/19 unknown
- v4 170.28.64.0/19 unknown
- v4 170.28.64.0/24 unknown
Routing: 16 IPv4 · 0 IPv6 announced · RIS visibility 327/327 RIS peers · RIPEstat · 2026-06-17
Prefix history
Data table
| Day | Announced prefixes |
|---|---|
| 2026-06-12 | 16 |
| 2026-06-13 | 16 |
AS topology · Customer cone 1
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