AS33343 U.S. Department of Commerce, HQ and ITA

HCHBNET - U.S. Department of Commerce, HQ and ITA · registered in the United States

IPv4 addresses65,2808 prefixes · 0.002% of announced IPv4

Rank in United States#1,316largest network in US by IPv4 space, of 18,338 · <0.01% of US

Rank worldwide#3,467of 79,396 networks with IPv4

IPv62,048 x /4812 prefixes

CountryUnited States18,679 ASNs registered there

Open AS33343 in ASN lookup Look up an IP in this network (170.110.0.1) All networks in United States

IPv4 prefixes

All 8 prefixes, in address order.

170.110.0.0/17
170.110.128.0/18
170.110.192.0/19
170.110.224.0/20
170.110.240.0/21
170.110.248.0/23
170.110.251.0/24
170.110.252.0/22

IPv6 prefixes

All 12 prefixes.

2610:20::/40
2610:20:100::/48
2610:20:101::/48
2610:20:102::/47
2610:20:104::/46
2610:20:108::/45
2610:20:110::/44
2610:20:120::/43
2610:20:140::/42
2610:20:180::/41
2610:20:200::/39
2610:20:400::/38

Similar-sized networks in United States

ASNNameIPv4 addresses

AS3634#1313 SFASU-AS - Stephen F. Austin State University65,280

AS10508#1314 UARK-FAYETTEVILLE - University of Arkansas65,280

AS16433#1315 NCTC-ISP - NORTH CENTRAL TELEPHONE COOPERATIVE CORPORATION65,280

AS320#1317 DNIC-ASBLK-00306-00371 - United States Department of Defense (DoD)65,280

AS348#1318 DNIC-ASBLK-00306-00371 - United States Department of Defense (DoD)65,280

AS4196#1319 WELLSFARGO-4196 - Wells Fargo Bank, N.A.65,280

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