Data as of Nov 12, 2026
137.200.0.0/18
No anonymizer space · no proxy exits in 30 daysSocial Security Administration
Announcements
More specific
Announcements inside
| Prefix | Origin | Type | Holder | RPKI |
|---|---|---|---|---|
| 137.200.0.0/19 since Feb 2016 | AS11985 | Business | Social Security Administration | |
| 137.200.0.0/20 since Feb 2016 | AS11985 | Business | Social Security Administration | |
| 137.200.16.0/20 since Feb 2020 | AS11985 | Business | Social Security Administration | |
| 137.200.32.0/19 since Apr 2009 | AS11985 | Business | Social Security Administration | |
| 137.200.32.0/20 since Feb 2016 | AS11985 | Business | Social Security Administration | |
| 137.200.48.0/20 since Oct 2020 | AS11985 | Business | Social Security Administration |
Network & registry
Origin network
AS11985
US
- Name
- Social Security Administration
- Type
- Business
- Registered
- Feb 22, 1999
- Domain
- ssa.gov
- Industry
- Government and Regulatory Agencies, Administrations, Departments, and Services
- Spamhaus ASN-DROP
- not listed
Routing timeline
Who has announced this prefix
Summary
Routing history
- Pattern
- Rotating
- First seen
- Jul 2019
- Current origin since
- Jul 2023 · 3.3 yr
- Origin networks
- 2
- Last change of origin
- Mar 2026
Recorded history
History
- Handoffs
- 1
Whois
Registration for this announcement
- Range
- 137.
200. 0. 0/ 16 - Netname
- SSA
- Registrant
- Social Security Administration
- Organization
- Social Security Administration (SSA-6-Z)
- Org address
- 6401 Security Boulevard, Baltimore, MD, 21235
- Org country
- US
- Type
- Direct Allocation
- Handle
- NET-137-200-0-0-1
- Parent
- NET-137-0-0-0-0
- Created
- Jan 3, 1990
- RIR
- ARIN
- Country
- US
- Delegated
- Jan 3, 1990
- Status
- assigned
Report abuse
Abuse contact
- jason.
devnew@ ssa. gov - Name
- Devnew, Jason Edward
- Phone
- +1-410-966-1852
- Handle
- JED77-ARIN