AS11985
Social Security Administration
Reputation · trust score
A transparent 0–100 signal. Every entity starts at a neutral baseline of 65; threat-intel blocklists, exposure, reverse-DNS, routing and allocation each adjust it up or down. Higher is more trustworthy.
- Baseline (neutral) 65
- Government allocation +8
- Trust score 73 / 100
Experimental · trust-vectors model v1.2.0 — a transparent heuristic, not a definitive verdict. How it works →
Top CIDR ranges
| CIDR | IPs | PTR Density | Organization | Country | State | City |
|---|---|---|---|---|---|---|
| 137.200.0.0/18 | 16.4K |
1.1%
|
Social Security Administration | US | Maryland | Baltimore |
| 199.173.224.0/21 | 2.0K |
2.9%
|
Social Security Administration | US | Maryland | Baltimore |
| 137.200.228.0/24 | 256 |
0.0%
|
Social Security Administration | US | — | — |
BGP Announced Prefixes
Live BGP anomalies →Prefixes AS11985 actually originates in BGP, observed across our RIPE RIS collectors. This live routing view can differ from the registry allocation above.
| Prefix | Announcement samples | Last seen |
|---|---|---|
| 137.200.0.0/20 | 19,238 | 2026-09-17 17:00:05 |
| 137.200.16.0/20 | 19,223 | 2026-09-17 17:00:05 |
| 137.200.32.0/19 | 18,921 | 2026-09-17 17:00:05 |
| 199.173.224.0/21 | 15,364 | 2026-09-17 16:55:24 |
| 137.200.0.0/18 | 13,509 | 2026-09-17 17:00:05 |
| 137.200.48.0/20 | 12,841 | 2026-09-17 17:22:01 |
| 137.200.32.0/20 | 12,811 | 2026-09-17 17:22:01 |
| 199.173.228.0/22 | 12,788 | 2026-09-17 17:22:01 |
| 199.173.224.0/22 | 12,754 | 2026-09-17 17:22:01 |
| 137.200.0.0/19 | 11,795 | 2026-09-17 17:22:01 |
| 137.200.228.0/24 | 9,266 | 2026-09-17 16:08:14 |
| 137.200.43.0/24 | 1,301 | 2026-08-15 03:25:46 |
| 137.200.48.0/24 | 1,299 | 2026-08-15 03:24:59 |
| 137.200.46.0/24 | 1,299 | 2026-08-15 03:24:38 |
| 137.200.42.0/24 | 1,299 | 2026-08-15 03:25:50 |
| 137.200.45.0/24 | 1,298 | 2026-08-15 03:24:57 |
| 137.200.40.0/24 | 1,297 | 2026-08-15 03:25:54 |
| 137.200.41.0/24 | 1,297 | 2026-08-15 03:25:40 |
| 137.200.51.0/24 | 1,296 | 2026-08-15 03:25:27 |
| 137.200.44.0/24 | 1,296 | 2026-08-15 03:25:56 |
| 137.200.39.0/24 | 1,295 | 2026-08-15 03:25:42 |
| 137.200.49.0/24 | 170 | 2026-09-17 03:31:46 |
| 137.200.11.0/24 | 147 | 2026-09-17 03:31:46 |
Frequently Asked Questions
What is AS11985?
AS11985 is an Autonomous System Number assigned to Social Security Administration. An ASN identifies a network that controls a specific set of IP addresses and determines how traffic is routed across the internet via BGP (Border Gateway Protocol).
How many IP addresses does AS11985 announce?
AS11985 announces 18.7K IPv4 addresses distributed across 3 routed CIDR prefixes. The network is registered in United States.
Who operates AS11985?
AS11985 is operated by Social Security Administration. The organization is based in United States. You can view all IP ranges and related ASNs on the organization page.
What country is AS11985 registered in?
AS11985 is registered in United States. This indicates where the network operator is headquartered, though the IP addresses it announces may serve users globally.
