AS11985
Social Security Administration
USUnknown2026-10-16
Announced prefixes 19
137.200.0.0/18137.200.0.0/19137.200.0.0/20137.200.11.0/24137.200.16.0/20137.200.32.0/19137.200.32.0/20137.200.48.0/20137.200.49.0/24137.200.228.0/24199.173.224.0/21199.173.224.0/22199.173.228.0/222001:1930:c00::/382001:1930:d00::/402001:1930:d00::/412001:1930:e00::/402001:1930:e00::/412001:1930:3c10::/48Snapshot history
| Date | Name | Country | Class | Prefixes |
|---|---|---|---|---|
| 2026-11-14 | Social Security Administration | US | Unknown | 19 |
| 2026-11-13 | Social Security Administration | US | Unknown | 19 |
| 2026-11-12 | Social Security Administration | US | Unknown | 19 |
| 2026-11-11 | Social Security Administration | US | Unknown | 19 |
| 2026-11-10 | Social Security Administration | US | Unknown | 19 |
| 2026-11-09 | Social Security Administration | US | Unknown | 19 |
| 2026-11-08 | Social Security Administration | US | Unknown | 19 |
| 2026-11-07 | Social Security Administration | US | Unknown | 19 |
| 2026-11-06 | Social Security Administration | US | Unknown | 19 |
| 2026-11-05 | Social Security Administration | US | Unknown | 19 |
| 2026-11-04 | Social Security Administration | US | Unknown | 19 |
| 2026-11-03 | Social Security Administration | US | Unknown | 19 |
| 2026-11-02 | Social Security Administration | US | Unknown | 19 |
| 2026-11-01 | Social Security Administration | US | Unknown | 19 |
| 2026-10-31 | Social Security Administration | US | Unknown | 19 |
| 2026-10-30 | Social Security Administration | US | Unknown | 19 |
| 2026-10-29 | Social Security Administration | US | Unknown | 19 |
| 2026-10-28 | Social Security Administration | US | Unknown | 19 |
| 2026-10-27 | Social Security Administration | US | Unknown | 19 |
| 2026-10-26 | Social Security Administration | US | Unknown | 19 |
| 2026-10-25 | Social Security Administration | US | Unknown | 19 |
| 2026-10-24 | Social Security Administration | US | Unknown | 19 |
| 2026-10-23 | Social Security Administration | US | Unknown | 19 |
| 2026-10-22 | Social Security Administration | US | Unknown | 19 |
| 2026-10-21 | Social Security Administration | US | Unknown | 19 |
| 2026-10-20 | Social Security Administration | US | Unknown | 19 |
| 2026-10-19 | Social Security Administration | US | Unknown | 19 |
| 2026-10-18 | Social Security Administration | US | Unknown | 19 |
| 2026-10-17 | Social Security Administration | US | Unknown | 19 |
| 2026-10-16 | Social Security Administration | US | Unknown | 19 |
| 2026-10-15 | Social Security Administration | US | Unknown | 17 |
| 2026-10-14 | Social Security Administration | US | Unknown | 17 |
| 2026-10-13 | Social Security Administration | US | Unknown | 17 |
| 2026-10-12 | Social Security Administration | US | Unknown | 17 |
| 2026-10-11 | Social Security Administration | US | Unknown | 15 |
| 2026-10-10 | Social Security Administration | US | Unknown | 17 |
| 2026-10-09 | Social Security Administration | US | Unknown | 19 |
| 2026-10-08 | Social Security Administration | US | Unknown | 19 |
| 2026-10-07 | Social Security Administration | US | Unknown | 19 |
| 2026-10-06 | Social Security Administration | US | Unknown | 19 |
| 2026-10-05 | Social Security Administration | US | Unknown | 19 |
| 2026-10-04 | Social Security Administration | US | Unknown | 19 |
| 2026-10-03 | Social Security Administration | US | Unknown | 19 |
| 2026-10-02 | Social Security Administration | US | Unknown | 19 |
| 2026-10-01 | Social Security Administration | US | Unknown | 19 |
| 2026-09-30 | Social Security Administration | US | Unknown | 19 |
| 2026-09-29 | Social Security Administration | US | Unknown | 19 |
| 2026-09-28 | Social Security Administration | US | Unknown | 19 |
| 2026-09-27 | Social Security Administration | US | Unknown | 19 |
| 2026-09-26 | Social Security Administration | US | Unknown | 19 |
| 2026-09-25 | Social Security Administration | US | Unknown | 19 |
| 2026-09-24 | Social Security Administration | US | Unknown | 19 |
| 2026-09-23 | Social Security Administration | US | Unknown | 19 |
| 2026-09-22 | Social Security Administration | US | Unknown | 19 |
| 2026-09-21 | Social Security Administration | US | Unknown | 19 |
| 2026-09-20 | Social Security Administration | US | Unknown | 19 |
| 2026-09-19 | Social Security Administration | US | Unknown | 19 |
| 2026-09-18 | Social Security Administration | US | Unknown | 19 |
| 2026-09-17 | Social Security Administration | US | Unknown | 19 |
| 2026-09-16 | Social Security Administration | US | Unknown | 19 |
| 2026-09-15 | Social Security Administration | US | Unknown | 19 |
| 2026-09-14 | Social Security Administration | US | Unknown | 19 |
| 2026-09-13 | Social Security Administration | US | Unknown | 19 |
| 2026-09-12 | Social Security Administration | US | Unknown | 19 |
| 2026-09-11 | Social Security Administration | US | Unknown | 19 |
| 2026-09-10 | Social Security Administration | US | Unknown | 19 |
| 2026-09-09 | Social Security Administration | US | Unknown | 19 |
| 2026-09-08 | Social Security Administration | US | Unknown | 19 |
| 2026-09-07 | Social Security Administration | US | Unknown | 19 |
| 2026-09-06 | Social Security Administration | US | Unknown | 19 |
| 2026-09-05 | Social Security Administration | US | Unknown | 19 |
| 2026-09-04 | Social Security Administration | US | Unknown | 19 |
| 2026-09-03 | Social Security Administration | US | Unknown | 19 |
| 2026-09-02 | Social Security Administration | US | Unknown | 19 |
| 2026-09-01 | Social Security Administration | US | Unknown | 19 |
| 2026-08-31 | Social Security Administration | US | Unknown | 19 |
| 2026-08-30 | Social Security Administration | US | Unknown | 19 |
| 2026-08-29 | Social Security Administration | US | Unknown | 19 |
| 2026-08-28 | Social Security Administration | US | Unknown | 19 |
| 2026-08-27 | Social Security Administration | US | Unknown | 19 |
| 2026-08-26 | Social Security Administration | US | Unknown | 19 |
| 2026-08-25 | Social Security Administration | US | Unknown | 19 |
| 2026-08-24 | Social Security Administration | US | Unknown | 19 |
| 2026-08-23 | Social Security Administration | US | Unknown | 19 |
| 2026-08-22 | Social Security Administration | US | Unknown | 19 |
| 2026-08-21 | Social Security Administration | US | Unknown | 19 |
| 2026-08-20 | Social Security Administration | US | Unknown | 19 |
| 2026-08-19 | Social Security Administration | US | Unknown | 19 |
| 2026-08-18 | Social Security Administration | US | Unknown | 19 |
| 2026-08-17 | Social Security Administration | US | Unknown | 19 |
| 2026-08-16 | Social Security Administration | US | Unknown | 19 |
| 2026-08-15 | Social Security Administration | US | Unknown | 19 |
| 2026-08-14 | Social Security Administration | US | Unknown | 19 |
| 2026-08-13 | Social Security Administration | US | Unknown | 19 |
| 2026-08-12 | Social Security Administration | US | Unknown | 19 |
| 2026-08-11 | Social Security Administration | US | Unknown | 19 |
| 2026-08-10 | Social Security Administration | US | Unknown | 19 |
| 2026-08-09 | Social Security Administration | US | Unknown | 19 |
| 2026-08-08 | Social Security Administration | US | Unknown | 19 |
| 2026-08-07 | Social Security Administration | US | Unknown | 19 |
| 2026-08-06 | Social Security Administration | US | Unknown | 19 |
| 2026-08-05 | Social Security Administration | US | Unknown | 19 |
| 2026-08-04 | Social Security Administration | US | Unknown | 19 |
| 2026-08-03 | Social Security Administration | US | Unknown | 19 |
| 2026-08-02 | Social Security Administration | US | Unknown | 19 |
| 2026-08-01 | Social Security Administration | US | Unknown | 19 |
| 2026-07-31 | Social Security Administration | US | Unknown | 19 |
| 2026-07-30 | Social Security Administration | US | Unknown | 19 |
| 2026-07-29 | Social Security Administration | US | Unknown | 19 |
| 2026-07-28 | Social Security Administration | US | Unknown | 19 |
| 2026-07-27 | Social Security Administration | US | Unknown | 19 |
| 2026-07-26 | Social Security Administration | US | Unknown | 19 |
| 2026-07-25 | Social Security Administration | US | Unknown | 19 |
| 2026-07-24 | Social Security Administration | US | Unknown | 19 |
| 2026-07-23 | Social Security Administration | US | Unknown | 19 |
| 2026-07-22 | Social Security Administration | US | Unknown | 19 |
| 2026-07-21 | Social Security Administration | US | Unknown | 19 |
| 2026-07-20 | Social Security Administration | US | Unknown | 19 |
| 2026-07-19 | Social Security Administration | US | Unknown | 19 |
| 2026-07-18 | Social Security Administration | US | Unknown | 19 |
| 2026-07-17 | Social Security Administration | US | Unknown | 19 |
| 2026-07-16 | Social Security Administration | US | Unknown | 19 |
| 2026-07-15 | Social Security Administration | US | Unknown | 19 |
| 2026-07-14 | Social Security Administration | US | Unknown | 19 |
| 2026-07-13 | Social Security Administration | US | Unknown | 19 |
| 2026-07-12 | Social Security Administration | US | Unknown | 19 |
| 2026-07-11 | Social Security Administration | US | Unknown | 19 |
| 2026-07-10 | Social Security Administration | US | Unknown | 19 |
| 2026-07-09 | Social Security Administration | US | Unknown | 19 |
| 2026-07-08 | Social Security Administration | US | Unknown | 19 |
| 2026-07-07 | Social Security Administration | US | Unknown | 19 |
| 2026-07-06 | Social Security Administration | US | Unknown | 19 |
| 2026-07-05 | Social Security Administration | US | Unknown | 19 |
| 2026-07-04 | Social Security Administration | US | Unknown | 19 |
| 2026-07-03 | Social Security Administration | US | Unknown | 19 |
| 2026-07-02 | Social Security Administration | US | Unknown | 19 |
| 2026-07-01 | Social Security Administration | US | Unknown | 19 |
| 2026-06-30 | Social Security Administration | US | Unknown | 19 |
| 2026-06-29 | Social Security Administration | US | Unknown | 19 |
| 2026-06-28 | Social Security Administration | US | Unknown | 19 |
| 2026-06-27 | Social Security Administration | US | Unknown | 19 |
| 2026-06-26 | Social Security Administration | US | Unknown | 19 |
| 2026-06-25 | Social Security Administration | US | Unknown | 19 |
| 2026-06-24 | Social Security Administration | US | Unknown | 19 |
| 2026-06-23 | Social Security Administration | US | Unknown | 19 |
| 2026-06-22 | Social Security Administration | US | Unknown | 19 |
| 2026-06-21 | Social Security Administration | US | Unknown | 19 |
| 2026-06-20 | Social Security Administration | US | Unknown | 19 |
| 2026-06-19 | Social Security Administration | US | Unknown | 19 |
| 2026-06-18 | Social Security Administration | US | Unknown | 19 |
| 2026-06-17 | Social Security Administration | US | Unknown | 19 |
| 2026-06-16 | Social Security Administration | US | Unknown | 19 |
| 2026-06-15 | Social Security Administration | US | Unknown | 19 |
| 2026-06-14 | Social Security Administration | US | Unknown | 19 |
| 2026-06-13 | Social Security Administration | US | Unknown | 19 |
IP-block changes
Open full filtered history →| Observed | Block | Action | Previous origins | New origins |
|---|---|---|---|---|
| 2026-10-16 | 137.200.228.0/24 | Acquired | — | AS11985 |
| 2026-10-16 | 2001:1930:3c10::/48 | Acquired | — | AS11985 |
| 2026-10-12 | 137.200.0.0/18 | Acquired | — | AS11985 |
| 2026-10-12 | 2001:1930:c00::/38 | Acquired | — | AS11985 |
| 2026-10-11 | 2001:1930:c00::/38 | Released | AS11985 | — |
| 2026-10-11 | 2001:1930:3c10::/48 | Released | AS11985 | — |
| 2026-10-10 | 137.200.0.0/18 | Released | AS11985 | — |
| 2026-10-10 | 137.200.228.0/24 | Released | AS11985 | — |
Changes page 1