AS15147 DEPARTMENT OF HOMELAND SECURITY

DHSINETNOC - DEPARTMENT OF HOMELAND SECURITY · registered in the United States

IPv4 addresses73,7288 prefixes · 0.002% of announced IPv4

Rank in United States#762largest network in US by IPv4 space, of 18,338 · <0.01% of US

Rank worldwide#2,338of 79,396 networks with IPv4

IPv61 x /32 (65,536 x /48)1 prefixes

CountryUnited States18,679 ASNs registered there

Open AS15147 in ASN lookup Look up an IP in this network (64.69.48.1) All networks in United States

IPv4 prefixes

All 8 prefixes, in address order.

64.69.48.0/20
161.214.0.0/18
161.214.64.0/19
161.214.96.0/21
161.214.120.0/21
161.214.128.0/17
173.255.48.0/20
216.81.80.0/20

IPv6 prefixes

All 1 prefix.

2600:400::/32

Other ASNs named DEPARTMENT OF HOMELAND SECURITY

1 other network uses the same organisation name; together with AS15147 they announce 75,520 IPv4 addresses.

ASNNameIPv4 addresses

AS396973DHS-39H - Department of Homeland Security US1,792

Similar-sized networks in United States

ASNNameIPv4 addresses

AS2552#759 WUSTL-ASN - Washington University73,984

AS5080#760 ARAMCO-AS - Aramco73,984

AS11745#761 USNH - University System of New Hampshire73,728

AS13611#763 CDC - U.S. Center For Disease Control and Prevention73,728

AS14954#764 FHCRC - The Fred Hutchinson Cancer Research Center73,728

AS22968#765 MIAMI-UNIVERSITY - Miami University73,728

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