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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. | 211.2M | 21,189 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 113.7M | 639 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,241 |
| 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 |
| 228 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 372 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 49.3M | 3,656 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.7M | 1,936 |
| AS701US | UUNET - Verizon Business | 43.6M | 1,000 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,378 |
| FASTER-CAJUN-LLC - Faster Cajun Networks |
| 1.8K |
| — |
| 5 |
| AS400436US | KCNA-ASN-01 - Kentucky Communications Network Authority (KCNA) | 1.8K | — | 4 |
| AS21778US | NET-DIDATA-NY - Dimension Data North America, Inc. | 1.7K | 1 | 12 |
| AS18898US | VESTA-CORP - Vesta Corporation | 1.7K | — | 7 |
| AS399604US | ES10-08873-01 - EXL SERVICE.COM, LLC | 1.6K | — | 7 |
| AS36407US | CERT - Software Engineering Institute | 1.5K | 1 | 4 |
| AS62928US | LVMH-EQ-SECAUCUS-INET - LVMH MOET HENNESSY LOUIS VUITTON | 1.5K | — | 5 |
| AS212400US | DEDIROOM-LLC DEDIROOM LLC | 1.5K | — | 6 |
| AS19880US | REALCOMPII - REALCOMP II LTD. | 1.5K | — | 6 |
| AS40950US | DEDIBYTE-LLC - DediByte, LLC | 1.5K | — | 6 |
| AS26135US | NETGAIN-TECHNOLOGY - Netgain Technology, LLC | 1.5K | — | 2 |
| AS393303US | RYDERSYSTEMINC - Ryder System, Inc. | 1.5K | — | 6 |
| AS32908US | TRIMBL-NUM - Trimble, Inc. | 1.5K | — | 6 |
| AS398415US | EPEC - EPEC Technologies, LLC | 1.5K | 4.1K | 4 |
| AS26778US | TGH-TAMPA - Tampa General Hospital | 1.5K | — | 6 |
| AS62586US | TRACE-ONE - Trace One Inc. | 1.5K | — | 3 |
| AS10930US | NOVA-INTERNET - Nova Internet Services, Inc. | 1.5K | — | 6 |
| AS20213US | GIFFORD-WIRELESS - Gifford Wireless Inc | 1.5K | 1K | 7 |
| AS32977US | CBSITE-CHI-WEB - CareerBuilder, LLC | 1.5K | — | 6 |
| AS394378US | NMICA-01 - NMICA, LLC | 1.5K | — | 3 |
| AS26558US | FREEWHEEL - Freewheel Media Inc. | 1.5K | 2 | 8 |
| AS13517US | BAKER-MCKENZIE - Baker & McKenzie | 1.5K | — | 6 |
| AS31911US | BSI-UBS - Vitalant | 1.5K | — | 4 |
| AS398296US | DIGITALSYSTEM - Digitalsystem Technology Inc. | 1.5K | — | 3 |
| AS62791US | DENOVOVENTURESLLC - DENOVO VENTURES LLC | 1.5K | — | 4 |
| AS572US | GBMC-TOW - Greater Baltimore Medical Center Inc | 1.5K | — | 4 |
| AS4258US | ATG-4258 - Accretive Networks | 1.5K | 65.5K | 4 |
| AS397572US | DCCU - Delta Community Credit Union | 1.5K | — | 3 |
| AS2579US | AS2579 - Nokia of America Corporation | 1.5K | — | 3 |
| AS6556US | AIRGAPPED - AZSIGNSHOP LLC | 1.5K | — | 6 |
| AS19067US | VAILSYS - Vail Systems, Inc. | 1.5K | — | 6 |
| AS26370US | AS-PALCOM - Pal Communications LLC | 1.5K | 4.1K | 7 |
| AS14982US | DQ-ASN - Dynamic Quest, Inc. | 1.5K | — | 2 |
| AS1379US | AS1379 - SINCH INTERCONNECT LLC | 1.5K | — | 6 |
| AS30595US | URBANOUT - Urban Outfitters, Inc. | 1.5K | — | 6 |
| AS53928US | FORTINET-53928 - Fortinet Inc. | 1.5K | — | 6 |
| AS46202US | MICHAELS-ATT-DS3 - Michaels Stores, Inc. | 1.5K | — | 6 |
| AS19615US | SITEL-US - Sitel | 1.5K | — | 6 |
| AS54809US | MCMSYS - MCM Systems, LLC | 1.5K | — | 3 |
| AS46315US | BLOSSOM-TX - Blossom Telephone Company | 1.5K | — | 2 |
| AS40724US | DEKALB-COUNTY-GEORGIA-GOVERNMENT - DeKalb County, Georgia | 1.5K | — | 6 |
| AS17123US | TEAM-HEALTH - Team Health, Inc. | 1.5K | — | 6 |
| AS947US | RUDIO - Desk2 | 1.5K | — | 3 |
| AS395378US | CASCADEDIVIDE-DC - Cascade Divide Partners, LLC | 1.5K | 131.1K | 3 |
| AS36847US | DELTA-DENTAL-OF-CALIFORNIA - Delta Dental of California | 1.5K | — | 6 |
| AS396286US | VSTOASN - Federal Cartridge Co. | 1.5K | — | 6 |
| AS32381US | GOOGLE CLOUD NETWORKING - Google Access LLC | 1.5K | 3 | 6 |