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AS4888 United States Postal Service Office of Inspector General

USPSOIG-AS1 - United States Postal Service Office of Inspector General · registered in the United States

IPv4 addresses2561 prefixes · <0.001% of announced IPv4
Rank in United States#13,695largest network in US by IPv4 space, of 18,338 · <0.01% of US
Rank worldwide#63,038of 79,396 networks with IPv4
IPv6noneno IPv6 routes announced
CountryUnited States18,679 ASNs registered there
Open AS4888 in ASN lookup Look up an IP in this network (38.134.108.1) All networks in United States

IPv4 prefixes

All 1 prefix, in address order.

  • 38.134.108.0/24

Other ASNs named United States Postal Service Office of Inspector General

1 other network uses the same organisation name; together with AS4888 they announce 768 IPv4 addresses.

ASNNameIPv4 addresses
AS4889USPSOIG-AS2 - United States Postal Service Office of Inspector General US512

Similar-sized networks in United States

ASNNameIPv4 addresses
AS4578#13692 NETCENTER - Network Center Inc.256
AS4878#13693 NOKIA-TECH - Nokia Technologies256
AS4887#13694 PORTOFCC - Port of Corpus Christi Authority256
AS4890#13696 ASN-RICHLINE-FL - Richline Group Inc256
AS4891#13697 PORTO-18-4891 - Port of Houston Authority of Harris County, Texas256
AS4893#13698 RGM-ASN-1 - DRW Holdings, LLC256

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