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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) | 227.5M | 3,133 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 218M | 23,961 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 644 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.6M | 1,299 |
| 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.
32,159 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 233 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 437 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.5M | 3,885 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 1,998 |
| AS701US | UUNET - Verizon Business | 43.6M | 993 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,341 |
| 1.5K |
| — |
| 6 |
| AS18854US | RADWEB-NA-01 - RadWeb, LLC | 1.5K | 16.4K | 9 |
| AS10616US | NTIS - National Oceanic and Atmospheric Administration | 1.5K | 256 | 7 |
| AS5715US | ONVOY - Inteliquent, inc. | 1.5K | 65.5K | 7 |
| AS393662US | SYMPLYFI-CORENET - SymplyFi | 1.5K | — | 5 |
| AS55082US | WINKCDN - WINK Streaming LLC | 1.5K | — | 6 |
| AS398029US | AQUATIC-PUBLIC-01 - Aquatic Group LLC | 1.5K | — | 5 |
| AS23225US | NORTH-CAROLINA-WIRELESS - RiverStreet Networks | 1.5K | — | 2 |
| AS23415US | G5INTERNET - G5 INTERNET, LLC | 1.5K | — | 2 |
| AS19997US | PENNNATIONALINSURANCE - Penn National Insurance | 1.5K | — | 6 |
| AS11756US | CHLA - Children's Hospital Los Angeles | 1.5K | — | 4 |
| AS19819US | BRADYCOM - Brady Communications, LLC | 1.5K | — | 6 |
| AS4468US | EASYLINK4 - AT&T Enterprises, LLC | 1.5K | — | 6 |
| AS7201US | AS-NETWORKEDGE - Network Edge LLC | 1.5K | 1 | 7 |
| AS13352US | MTC-ASN - Mark G Thomas, Sole Proprietorship | 1.5K | 256 | 7 |
| AS53855US | RIPPLE-01 - Ripple | 1.5K | — | 6 |
| AS395591US | ESS-CORP - Election systems & Software | 1.5K | — | 6 |
| AS26842US | MFXCHANGE US INC - MFXCHANGE US, INC | 1.5K | — | 6 |
| AS46796US | SLAPPEYTEL-NET - Slappey Telephone, Inc. | 1.5K | — | 6 |
| AS32094US | ERICYHOST - Ericsson Inc. | 1.5K | 3 | 9 |
| AS32323US | EQUINIX-EC-TR - Equinix, Inc. | 1.5K | — | 5 |
| AS53498US | FORD-FOUNDATION - Ford Foundation | 1.5K | — | 3 |
| AS62775US | INTERNET2-ISS - Internet2 | 1.5K | 3 | 6 |
| AS26949US | HARBOR-COMMUNICATIONS-LLC - Harbor Communications, LLC | 1.5K | 65.5K | 4 |
| AS397062US | SMG - Sun-Maid Growers of California | 1.5K | — | 6 |
| AS63031US | WEBBYENT - Webby Enterprises LLC | 1.5K | — | 2 |
| AS394105US | AMTRUST-NA - AmTrust North America, Inc. | 1.5K | — | 4 |
| AS40082US | APOG-COC - Apogee Telecom Inc. | 1.5K | — | 4 |
| AS14224US | TAMPNET-US - Tampnet Inc | 1.5K | — | 3 |
| AS35997US | UNITED-FINANCIAL-SERVICES - UFS LLC | 1.5K | — | 6 |
| AS11408US | KWE-AS - Kintetsu World Express | 1.5K | — | 6 |
| AS30650US | ALTA-RESOURCES - Alta Resources Corp. | 1.5K | — | 3 |
| AS63183US | YTHING-NET-1 - Ything LLC | 1.5K | 1K | 8 |
| AS397952US | NEXSTREAM - Nexstream | 1.5K | 65.5K | 4 |
| AS47031US | CITY-CVILLE-VA - City of Charlottesville | 1.5K | — | 3 |
| AS21882US | SMART-CITY-PHCC - SMART CITY NETWORKS, LIMITED PARTNERSHIP | 1.5K | — | 2 |
| AS397336US | VIRTUALSPROUT-01 - Virtual Sprout | 1.5K | — | 6 |
| AS55052US | KMBSU-AS - Konica Minolta Business Solutions U.S.A., Inc. | 1.5K | — | 3 |
| AS3384US | CELT - Center for Educational Leadership and Technology | 1.5K | — | 3 |
| AS25931US | SDXBF-DC-1 - Sodexo, Inc. | 1.5K | — | 6 |
| AS30144US | BQI - BQ Internet Corporation | 1.5K | — | 3 |
| AS20414US | HWASN - Hunton Andrews Kurth LLP | 1.5K | — | 6 |
| AS395799US | SVB - Soundview Broadcasting, LLC | 1.5K | — | 3 |
| AS23049US | AS23049 - Ecolab, Inc. | 1.5K | — | 6 |
| AS399024US | MIT-366-BMK - Marin IT, Inc. | 1.5K | — | 2 |
| AS54552US | SP-US-EAST1 - Samaritan's Purse | 1.5K | — | 3 |
| AS19825US | LABONE - LabOne, Inc. | 1.5K | — | 3 |