AS398033 U.S. Department of Labor - OASAM/DIRM

DEPT-OF-LABOR - U.S. Department of Labor - OASAM/DIRM · registered in the United States

IPv4 addresses3,84010 prefixes · <0.001% of announced IPv4

Rank in United States#4,908largest network in US by IPv4 space, of 18,338 · <0.01% of US

Rank worldwide#16,646of 79,396 networks with IPv4

IPv613 x /4811 prefixes

CountryUnited States18,679 ASNs registered there

Open AS398033 in ASN lookup Look up an IP in this network (152.180.10.1) All networks in United States

IPv4 prefixes

All 10 prefixes, in address order.

152.180.10.0/23
152.180.20.0/23
166.96.0.0/23
166.96.4.0/23
166.96.128.0/24
192.135.5.0/24
199.200.192.0/24
199.200.222.0/24
205.173.200.0/23
205.173.202.0/24

IPv6 prefixes

All 11 prefixes.

2607:f250:1009::/48
2607:f250:8000::/48
2607:f250:9000::/48
2607:f250:c020::/47
2607:f250:c022::/48
2607:f250:d020::/48
2607:f250:d024::/48
2607:f250:d028::/48
2607:f250:d030::/47
2607:f250:d033::/48
2607:f250:d034::/48

Similar-sized networks in United States

ASNNameIPv4 addresses

AS33662#4905 CMCS - Comcast Cable Communications, LLC3,840

AS55095#4906 AS-NFLXCORP - Netflix Inc3,840

AS396919#4907 SHADOW - Shadow3,840

AS393336#4909 CATALYST - Catalyst Host LLC3,840

AS1288#4910 PCH-LOCAL-TRANSIT - Packet Clearing House, Inc.3,840

AS8143#4911 NEBUSRT - Neburst LLC3,840

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