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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 | 24,358 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 644 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.6M | 1,303 |
| 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.
32,168 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 | 1,996 |
| AS701US | UUNET - Verizon Business | 43.6M | 994 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,342 |
| 768 |
| — |
| 3 |
| AS395558US | GSCOMPUTING - Garden State Computing LLC | 768 | 65.5K | 4 |
| AS394748US | CITYOFFORTCOLLINS - City of Fort Collins | 768 | — | 3 |
| AS36852US | SERVIT - SERVIT, INC. | 768 | — | 2 |
| AS23472US | SONICWALL-BGP - SonicWALL, Inc. | 768 | — | 3 |
| AS402162US | BENTHOST - Benthost LLC | 768 | 256 | 4 |
| AS400346US | APOG-ECKERD - Apogee Telecom Inc. | 768 | — | 2 |
| AS394933US | FIVERIVERSIT - Five Rivers IT, Inc. | 768 | — | 3 |
| AS20075US | RFERL-ORG - Radio Free Europe | 768 | — | 3 |
| AS400566US | POWERSERG - PowerSerg Data Systems Inc | 768 | 4.1K | 4 |
| AS62998US | USAZY - USAZY INC. | 768 | — | 3 |
| AS399997US | ARCONIC-CORP - Arconic | 768 | — | 3 |
| AS40457US | NASCAR-ASN - NASCAR Holdings, LLC | 768 | — | 3 |
| AS13754US | TKFAST - TkFast Inc | 768 | — | 2 |
| AS32904US | KAJEET-ARTERRA-OTARRIS - Arterra Mobility | 768 | — | 3 |
| AS32008US | PAYCHEX-L - Paychex Inc. | 768 | — | 3 |
| AS18550US | FARCAP-AS - Farallon Capital Management LLC | 768 | — | 3 |
| AS33499US | LHP-NET - AHS Management Company, Inc. | 768 | — | 3 |
| AS401450US | PLXN-ASN-USEAST1 - Pluxcon Network USA LLC | 768 | 2 | 5 |
| AS12131US | VC-AS-02 - Vertical Computers | 768 | 131.1K | 5 |
| AS206846US | ZINGAYA-AS Voximplant, Inc. | 768 | — | 3 |
| AS20280US | CORPUS-CHRISTI-ISD-AS1 - Corpus Christi ISD | 768 | — | 2 |
| AS400846US | TAMPA-COLO-ASN-PRIMARY - Tampa Co-Op | 768 | 257 | 4 |
| AS398026US | INDIANAPOLIS-AIRPORT-AUTHORITY - Indianapolis Airport Authority | 768 | — | 3 |
| AS33636US | WOFFORD-COLLEGE - Wofford College | 768 | — | 3 |
| AS55263US | UNITEDLEX - UnitedLex Corporation | 768 | — | 3 |
| AS394951US | EDF-RE-DC2 - EDF Renewables, Inc. | 768 | — | 2 |
| AS14620US | ITALK - iTalk Global Communications, Inc. | 768 | — | 3 |
| AS393248US | NISD-1 - Northside Independent School District | 768 | — | 3 |
| AS11369US | STONEX - StoneX Group Inc. | 768 | — | 3 |
| AS394930US | CUSTBANK-AS - CUSTOMERS BANK | 768 | — | 3 |
| AS400733US | PDS-RW-ASN-01 - Pari Data Systems Inc. | 768 | — | 3 |
| AS33755US | VALORNODE - Valor Holdings LLC | 768 | 13 | 16 |
| AS27253US | ASN1 - AMERICAN RESIDENTIAL SERVICES L.L.C. | 768 | — | 3 |
| AS46760US | DRURYHOTELS - Drury Inns | 768 | — | 3 |
| AS20176US | FNNI-AS20176 - First National Bank of Omaha | 768 | — | 3 |
| AS398434US | INTERNET-314 - Internet 3.14 | 768 | — | 3 |
| AS32713US | GE-CI-LOUACCESS - General Electric Consumer Products | 768 | — | 3 |
| AS53596US | CBOE - Cboe | 768 | — | 3 |
| AS210779US | BZL BREEZLE LLC | 768 | 4 | 7 |
| AS393245US | YAHOO-SWB - Yahoo Holdings Inc. | 768 | 1 | 4 |
| AS11012US | DDC-AS - The Digital Design Company | 768 | — | 2 |
| AS54617US | MGHPCC-AS - Massachusetts Green High Performance Computing Center, Inc | 768 | 1 | 4 |
| AS21959US | RMI-NETWORK-ATLANTA - Railcar Management Inc | 768 | — | 3 |
| AS12012US | NOV-NET-02 - Novani, LLC | 768 | — | 3 |
| AS10494US | AAI - Rodney Grimes, Sole Proprietorship | 768 | 4.1K | 3 |
| AS44965US | CONTACTUAL 8x8 Inc | 768 | — | 3 |