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How United States ranks worldwide on dormant space, the transfer market, routing security and address density.
PeeringDB-registered presence.
APNIC-measured end-user deployment.
Clean prefixes (valid RPKI + IRR, no mismatch).
Cumulative IPv4, IPv6, and ASN allocations to United States over time.
The largest autonomous systems registered to United States by IPv4 footprint.
| AS | Holder | IPv4 | Prefixes |
|---|---|---|---|
| AS749US | DNIC-AS-00749 - United States Department of Defense (DoD) | 227.7M | 3,138 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 210.9M | 21,015 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 113.7M | 639 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,222 |
| AS721US | DNIC-ASBLK-00721-00726 - United States Department of Defense (DoD) |
United States against its land-border neighbours on IPv4, IPv6, AS numbers and per-capita density.
Share of announced address space covered by valid Route Origin Authorizations.
31,994 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 229 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 368 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 48M | 3,584 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.7M | 1,935 |
| AS701US | UUNET - Verizon Business | 43.6M | 1,000 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.7M | 4,561 |
| 20.2K |
| — |
| 17 |
| AS22647US | CONSOLIDATED FLORIDA - Fidium | 20.2K | — | 31 |
| AS54519US | US-SIGNAL-WI02 - US Signal Company, L.L.C. | 20.2K | 256 | 11 |
| AS36426US | ISOTRASN - IsoTropic Networks, Inc. | 20.2K | — | 16 |
| AS31763US | BCIU - Berks County Intermediate Unit | 20K | — | 17 |
| AS397501US | PURDUE-RESNET - Purdue University | 20K | 256 | 11 |
| AS21743US | ANL-36 - Atlas Networks Corporation | 20K | 65.5K | 22 |
| AS26356US | CRUSOE - CRUSOE ENERGY SYSTEMS LLC | 20K | — | 37 |
| AS21730US | RRV-NET - Halstad Telephone Company | 20K | — | 33 |
| AS30221US | T3COM - T3 Communications, Inc. | 20K | — | 19 |
| AS10271US | MEGANET-TCIX - Meganet Communications | 20K | 65.5K | 17 |
| AS11979US | BLUENET - Bluegrass Network LLC | 20K | 67.1K | 32 |
| AS399559US | ALPINE-PUBLIC-ASN - Alpine Communications L.C. | 19.7K | — | 40 |
| AS16557US | COLOSOLUTIONS - Colo Solutions | 19.7K | 65.5K | 31 |
| AS11563US | NETENTERPRISE - NetEnterprise Inc. | 19.7K | 65.5K | 6 |
| AS40866US | MYSERVER-DOT-ORG - San Diego Broadband | 19.7K | — | 16 |
| AS54288US | SOLIDTOOLSINC - SolidTools Technology, Inc. | 19.7K | 1M | 48 |
| AS29744US | UTMA - United Telephone Mutual Aid Corporation | 19.7K | 65.5K | 33 |
| AS36097US | NUGGET-SAN - Nugget Enterprises, Inc. | 19.7K | 65.5K | 10 |
| AS1699US | ANS-1699-AS - Verizon Business | 19.7K | — | 43 |
| AS19628US | MCG-NET-1 - Mahaska Communication Group, LLC | 19.7K | 65.5K | 40 |
| AS14495US | ASN-14495 - Nasdaq, Inc. | 19.7K | — | 33 |
| AS5662US | WBD-AS5662 - Turner Broadcasting System, Inc. | 19.7K | 3 | 21 |
| AS1819US | DCM-CABLE - DCM Cable Inc. | 19.7K | — | 19 |
| AS19310US | CASAIR - Point Broadband Fiber Holding, LLC | 19.7K | — | 12 |
| AS13343US | TWC-13343-CHARLOTTE - Charter Communications Inc | 19.7K | 16 | 11 |
| AS12044US | SCTCNET - Willamette Valley Internet | 19.7K | — | 11 |
| AS40128US | MUSFIBERNET - Morristown Utility Systems | 19.7K | — | 9 |
| AS22006US | PRONSS-PULKCO-AS - PRONSS | 19.5K | — | 42 |
| AS401415US | ALLIANCECOM-NET - Alliance Communications | 19.5K | — | 22 |
| AS14437US | FLEMING - C&S WHOLESALE GROCERS INC. | 19.5K | — | 13 |
| AS23305US | WORTHINGTONINDUSTRIES - Worthington Enterprises, Inc. | 19.5K | — | 13 |
| AS16578US | DATANOC - Lanset America Corporation | 19.5K | 4 | 80 |
| AS14792US | DST-ASN - DST Systems, Inc. | 19.5K | — | 44 |
| AS11597US | MW-KANSAS - Mercury Broadband | 19.5K | 86K | 42 |
| AS33470US | CANBYTELEPHONEASSOCIATION - Canby Telephone Association | 19.5K | 65.5K | 7 |
| AS396402US | MULTICARE-HEALTH-SYSTEM - MultiCare Health System | 19.5K | — | 6 |
| AS22516US | CHARTER-22516-CENTRAL-CA-C3 - Charter Communications LLC | 19.2K | 8.5K | 38 |
| AS216211US | CYBERVERSE-BACKBONE CYBERVERSE LLC | 19.2K | 317 | 63 |
| AS20335US | UDT - United Data Technologies, Inc. | 19.2K | 67.1K | 27 |
| AS26134US | BROAD-RUN-BORDER-AS - VeriSign Infrastructure & Operations | 19.2K | 10 | 39 |
| AS394547US | BART-OCIO - San Francisco Bay Area Rapid Transit District | 19.2K | — | 12 |
| AS31972US | EMGINECONCEPT-01 - Emagine Concept, Inc. | 19.2K | 57.3K | 46 |
| AS55232US | MX-HOSTED - Zultys, Inc. | 19.2K | — | 49 |
| AS393892US | MCTC1 - Mid Century Communications | 19.2K | — | 8 |
| AS2727US | GEPB2009 - Electric Plant Board of the City of Glasgow, Kentucky | 19.2K | — | 22 |
| AS20303US | BAM - BAM Broadband Opco, LLC | 19.2K | 768 | 22 |