AS11985 Social Security Administration

ASN-SSA - Social Security Administration · registered in the United States

IPv4 addresses18,6883 prefixes · <0.001% of announced IPv4

Rank in United States#2,183largest network in US by IPv4 space, of 18,338 · <0.01% of US

Rank worldwide#6,362of 79,396 networks with IPv4

IPv61,025 x /487 prefixes

CountryUnited States18,679 ASNs registered there

Open AS11985 in ASN lookup Look up an IP in this network (137.200.0.1) All networks in United States

IPv4 prefixes

All 3 prefixes, in address order.

137.200.0.0/18
137.200.228.0/24
199.173.224.0/21

IPv6 prefixes

All 7 prefixes.

2001:1930:c00::/40
2001:1930:d00::/41
2001:1930:d80::/41
2001:1930:e00::/41
2001:1930:e80::/41
2001:1930:f00::/40
2001:1930:3c10::/48

Similar-sized networks in United States

ASNNameIPv4 addresses

AS18780#2180 RESTEL-81 - Reservation Telephone Coop.18,688

AS30027#2181 STINET-1 - S & T COMMUNICATIONS LLC18,688

AS33606#2182 C-SPIRE-BUSINESS - TekLinks, Inc.18,688

AS397849#2184 ZOHO-STREAMING-CONTENT-NETWORK - ZOHO18,688

AS8018#2185 VEL-AS - Velocity Networks, Inc.18,688

AS19113#2186 DUKE-ENERGY - Duke Energy Corporation18,688

IP-to-ASN data: iptoasn.com (public domain). Snapshot downloaded 2026-11-11, refreshed daily. Ranges are what each network announces in BGP, not registry allocations. Data sources