AS12187
Metropolitan Transportation Authority — mtahq.org
Summary
| Country |
 United States
|
| Organization | Metropolitan Transportation Authority |
| Domain | mtahq.org |
| Number of IPv4 | 23,296 |
| Number of IPv6 | 0 |
| AS Type | Business |
| Registry | ARIN |
| Allocated | April 13, 1999 (about 26 years ago) |
| Updated | March 02, 2012 (about 13 years ago) |
IP Ranges
AS12187 announces 15 IPv4 ranges and 0 IPv6 range.
That's a total of 23,296 IPv4 address and 0 IPv6 address.
| Prefix | Organization | Size | Registry | Status |
|---|---|---|---|---|
| 170.28.16.0/24 |
New York City Transit Authority
|
256 | ARIN | ALLOCATION |
| 170.28.17.0/24 |
New York City Transit Authority
|
256 | ARIN | ALLOCATION |
| 170.28.20.0/24 |
New York City Transit Authority
|
256 | ARIN | ALLOCATION |
| 170.28.32.0/19 |
New York City Transit Authority
|
8,192 | ARIN | ALLOCATION |
| 170.28.64.0/24 |
New York City Transit Authority
|
256 | ARIN | ALLOCATION |
| 170.28.64.0/19 |
New York City Transit Authority
|
8,192 | ARIN | ALLOCATION |
| 170.28.128.0/24 |
New York City Transit Authority
|
256 | ARIN | ALLOCATION |
| 170.28.128.0/21 |
New York City Transit Authority
|
2,048 | ARIN | ALLOCATION |
| 170.28.136.0/24 |
New York City Transit Authority
|
256 | ARIN | ALLOCATION |
| 170.28.136.0/21 |
New York City Transit Authority
|
2,048 | ARIN | ALLOCATION |
| 170.28.137.0/24 |
New York City Transit Authority
|
256 | ARIN | ALLOCATION |
| 170.28.139.0/24 |
New York City Transit Authority
|
256 | ARIN | ALLOCATION |
| 170.28.140.0/24 |
New York City Transit Authority
|
256 | ARIN | ALLOCATION |
| 170.28.142.0/24 |
New York City Transit Authority
|
256 | ARIN | ALLOCATION |
| 170.28.143.0/24 |
New York City Transit Authority
|
256 | ARIN | ALLOCATION |
Peers
AS12187 actively fosters the following peering relationships that enhance network performance through direct, settlement-free traffic exchange. Even with a modest number of peers, each connection serves as a strategic asset—optimizing routing, reducing latency, and minimizing transit costs.
Upstreams
AS12187 connects to the global Internet via at least 4 upstream providers. In this setup, AS12187 acts as a customer, subscribing to these transit services to obtain full BGP routing information and ensure reliable, redundant access to external networks.
Downstreams
AS12187 currently has no downstream networks, meaning it does not serve as a transit provider to customer networks.