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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 | 24,555 |
| 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 |
| 232 |
| 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 | 1,995 |
| AS701US | UUNET - Verizon Business | 43.6M | 994 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,354 |
| 512 |
| — |
| 2 |
| AS397548US | YTC907 - Yakutat Telecom Company, LLC | 512 | — | 1 |
| AS22579US | INDEPENDENCE-HEALTH-SYSTEM-BUTLER - Butler Memorial Hospital | 512 | — | 2 |
| AS40604US | N2N-TECHNOLOGIES - N2N Technologies, Inc. | 512 | — | 2 |
| AS397473US | HTG-VOLARE-01 - HighPoint Technology Group, LLC | 512 | — | 2 |
| AS40467US | CREDORAX-ARIN1 - Credorax (USA) Inc. | 512 | — | 2 |
| AS394776US | RGL-ASN-1 - JACK Entertainment LLC | 512 | — | 2 |
| AS46139US | METASOURCE - Metasource LLC | 512 | — | 2 |
| AS14279US | HDS-ORL-ASN1 - HD Supply, Inc. | 512 | — | 2 |
| AS13472US | MATRIX-CCHN - Matrix Medical Network | 512 | — | 2 |
| AS62877US | AIR-METHODS-ASN-FOR-DENVER-OMAHA-SAN-BERNARDINO - AIR METHODS | 512 | — | 1 |
| AS54728US | DATAPLANE - DataPlane.org | 512 | 1 | 3 |
| AS36674US | ULINE - Uline | 512 | — | 2 |
| AS13710US | SYSTEMS-METHODS - Systems & Methods, Inc. | 512 | — | 1 |
| AS215406US | paymentpass PaymentPass Inc. | 512 | — | 2 |
| AS40288US | CFCU-AS - CONGRESSIONAL FEDERAL CREDIT UNION | 512 | — | 2 |
| AS399221US | CONFIE - CONFIE ADMINISTRATIVE SERVICES, INC. | 512 | — | 2 |
| AS400034US | CIRHLD - Circuit Holdings | 512 | — | 2 |
| AS26450US | CTDI-WC - CTDI | 512 | 275 | 22 |
| AS64223US | MITCON - MITCON LLC | 512 | — | 2 |
| AS10959US | BAC-NPC - Bank of America, National Association | 512 | — | 2 |
| AS63481US | BCRH - BAXTER COUNTY REGIONAL HOSPITAL, INC | 512 | — | 2 |
| AS54469US | COV-ISP - City of Vacaville | 512 | — | 2 |
| AS27468US | GOODWILL-INDUSTRIES-OF-ORANGE-COUNTY - Goodwill Industries of Orange County | 512 | — | 2 |
| AS393546US | ARUP - ARUP LABORATORIES | 512 | — | 1 |
| AS35974US | QTS-EEM - Quality Technology Services, LLC | 512 | — | 2 |
| AS32419US | BALDWIN-LYONS - Protective Insurance Corporation | 512 | — | 2 |
| AS47056US | AS-NFM-01 - Nebraska Furniture Mart, Inc. | 512 | — | 2 |
| AS400516US | PARTSAUTHORITY - Parts Authority, LLC | 512 | — | 2 |
| AS31779US | DEN-SPG-ASN - Denny's, Inc. | 512 | — | 2 |
| AS400114US | APOG-RBC - Apogee Telecom Inc. | 512 | — | 2 |
| AS2021US | UNISYS-INT - Unisys Corporation | 512 | — | 2 |
| AS398786US | GO-DADDY-COM-LLC - GoDaddy.com, LLC | 512 | — | 2 |
| AS32830US | CCS-325-1 - Connecticut Computer Service, Inc. | 512 | — | 2 |
| AS398572US | MONOLITHICPOWER-SJC - Monolithic Power Systems,Inc | 512 | — | 2 |
| AS29746US | S3PL-ASN - S3 Partners LLC | 512 | — | 2 |
| AS394722US | NIMBIX-1 - Nimbix, Inc. | 512 | — | 1 |
| AS395901US | KUDU-SYSTEMS - Kudu Systems, LLC | 512 | — | 2 |
| AS27304US | DUHAWKS - Loras College | 512 | — | 2 |
| AS54740US | DYNAWEB - Dynaweb Foundation | 512 | — | 2 |
| AS393746US | MAXHOST-IO - Amazing Creations and More LLC | 512 | 5 | 7 |
| AS32169US | CMENETWORKS - CME Networks, LLC | 512 | 256 | 3 |
| AS5329US | DNIC-ASBLK-05120-05376 - United States Department of Defense (DoD) | 512 | — | 2 |
| AS11364US | VAREX-USA - Varex Imaging Corporation | 512 | — | 2 |
| AS33208US | EPIC-HOSTING-3 - Epic Hosting, LLC | 512 | — | 2 |
| AS40887US | TGNA-WZZM - TEGNA Inc. | 512 | — | 2 |
| AS30252US | BMCD-US - BURNS & MCDONNELL, INC. | 512 | — | 2 |