AS2576 U. S. Department of Transportation

DOT-AS - U. S. Department of Transportation · registered in the United States

IPv4 addresses268,80015 prefixes · 0.009% of announced IPv4

Rank in United States#258largest network in US by IPv4 space, of 18,338 · 0.02% of US

Rank worldwide#887of 79,396 networks with IPv4

IPv694 x /4815 prefixes

CountryUnited States18,679 ASNs registered there

Open AS2576 in ASN lookup Look up an IP in this network (152.119.0.1) All networks in United States

IPv4 prefixes

All 15 prefixes, in address order.

152.119.0.0/16
152.120.0.0/16
152.122.0.0/16
169.135.0.0/16
199.79.176.0/22
199.79.180.0/24
204.68.194.0/23
204.68.196.0/23
204.68.202.0/24
204.69.250.0/23
204.69.252.0/24
204.86.184.0/21
204.86.192.0/23
204.152.44.0/23
204.238.19.0/24

IPv6 prefixes

All 15 prefixes.

2001:19e8::/47
2001:19e8:2::/48
2001:19e8:a::/48
2001:19e8:d::/48
2001:19e8:e::/48
2001:19e8:d1::/48
2001:19e8:d2::/47
2001:19e8:d4::/46
2001:19e8:d8::/47
2001:19e8:da::/48
2001:19e8:f0::/45
2001:19e8:f8::/46
2001:19e8:220::/43
2001:19e8:260::/43
2001:19e8:1002::/47

Similar-sized networks in United States

ASNNameIPv4 addresses

AS5180#255 DNIC-ASBLK-05120-05376 - United States Department of Defense (DoD)270,848

AS409#256 AFCONC-BLOCK1-AS - Air Force Systems Networking269,312

AS18779#257 EGIHOSTING - EGIHosting268,800

AS1554#259 DNIC-ASBLK-01550-01601 - United States Department of Defense (DoD)266,496

AS5277#260 DNIC-ASBLK-05120-05376 - United States Department of Defense (DoD)265,472

AS370#261 DNIC-ASBLK-00306-00371 - United States Department of Defense (DoD)264,192

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