Data as of Nov 10, 2026
170.28.136.0/21
No anonymizer space · no proxy exits in 30 daysMetropolitan Transportation Authority · space held by New York City Transit Authority
Announcements
More specific
Announcements inside
| Prefix | Origin | Type | Holder | RPKI |
|---|---|---|---|---|
| 170.28.136.0/24 since Jan 2017 | AS12187 | Business | New York City Transit Authority | |
| 170.28.137.0/24 since Jan 2017 | AS12187 | Business | New York City Transit Authority | |
| 170.28.139.0/24 since Jan 2017 | AS12187 | Business | New York City Transit Authority | |
| 170.28.140.0/24 since Jan 2017 | AS12187 | Business | New York City Transit Authority | |
| 170.28.142.0/24 since Jan 2017 | AS12187 | Business | New York City Transit Authority |
Network & registry
Origin network
AS12187
US
- Name
- Metropolitan Transportation Authority
- Type
- Education
- Registered
- Apr 13, 1999
- Domain
- mta.info
- Website
- www.mta.info
- Industry
- Travel and Accommodation
- Spamhaus ASN-DROP
- not listed
Routing timeline
Who has announced this prefix
Summary
Routing history
- Pattern
- Stable
- First seen
- May 2005
- Current origin since
- Oct 2015 · 11 yr
- Origin networks
- 3
- Last change of origin
- Oct 2015
Recorded history
History
- Handoffs
- 2
Whois
Registration for this announcement
- Range
- 170.
28. 0. 0/ 16 - Netname
- NYCTA
- Registrant
- New York City Transit Authority
- Organization
- New York City Transit Authority (NYCTA-1)
- Org address
- 345 Madison Ave 15th floor, New York, NY, 10017
- Org country
- US
- Type
- Direct Allocation
- Handle
- NET-170-28-0-0-1
- Parent
- NET-170-0-0-0-0
- Created
- Jan 22, 1994
- RIR
- ARIN
- Country
- US
- Delegated
- Jan 22, 1994
- Status
- assigned
Report abuse
Abuse contact
- nobody@
example. com - Name
- No, Contact Known
- Phone
- +1-800-555-1234
- Handle
- CKN23-ARIN