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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 | 3,133 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 219M | 23,661 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 645 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,361 |
| 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.
32,363 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 236 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 439 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.8M | 3,911 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 45M | 2,046 |
| AS701US | UUNET - Verizon Business | 43.6M | 996 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.8M | 4,490 |
| 768 |
| — |
| 3 |
| AS32186US | FUJIFILM-HLUS - FUJIFILM Manufacturing USA, Inc | 768 | — | 2 |
| AS1062US | EMMETT-FIBER - City of Emmett | 768 | — | 3 |
| AS398092US | GRAND-TRAVERSE-BAND - Grand Traverse Band of Ottawa and Chippewa Indians | 768 | — | 2 |
| AS46504US | IDIT - Bonds.com, LLC | 768 | — | 3 |
| AS11804US | AMVDM - All Mobile Video Inc | 768 | — | 3 |
| AS40892US | EFTSOURCE2008 - EFT Source, Inc. | 768 | — | 3 |
| AS395165US | MT-NETWORKS - Madison Telephone LLC | 768 | — | 3 |
| AS33583US | IBC-FGIS - Isabella Bank Corporation | 768 | — | 3 |
| AS4319US | CORTLAND - Cortland Electronics Corp. | 768 | — | 3 |
| AS36566US | WBAL-TV - Hearst-Argyle Television, Inc. | 768 | — | 3 |
| AS17243US | BYTENODE-AS - Byte Node LLC | 768 | 1 | 4 |
| AS36798US | INFODIR - Info Directions, Inc. | 768 | — | 3 |
| AS16868US | PRAXAIR-INC - Linde Inc. | 768 | — | 2 |
| AS64296US | ONRADINC - Onrad, Inc. | 768 | — | 2 |
| AS203023US | KNL-23-203023 - Kawaii Networks LLC | 768 | 65.5K | 4 |
| AS16657US | CROWNCASTLE-AS16657 - Crown Castle Fiber LLC | 768 | — | 3 |
| AS7996US | VSCO - Victoria's Secret | 768 | — | 3 |
| AS32904US | KAJEET-ARTERRA-OTARRIS - Arterra Mobility | 768 | — | 3 |
| AS26461US | CARDHOLDER-MANAGEMENT-SERVICES - Cardworks Servicing, LLC | 768 | — | 3 |
| AS23079US | ARVEST-AS1 - Arvest Bank Operations | 768 | — | 3 |
| AS19161US | APOG-UNCC-NORTH - Apogee Telecom Inc. | 768 | — | 2 |
| AS206846US | ZINGAYA-AS Voximplant, Inc. | 768 | — | 3 |
| AS21885US | AS1 - McLane Advanced Technologies, LLC | 768 | — | 2 |
| AS397562US | UCOMTEL-01 - UComtel Inc | 768 | — | 3 |
| AS39966US | GBPHBUMC - General Board of Pensions and Health Benefits | 768 | — | 3 |
| AS395942US | PODS-CORP - PODS Enterprises, LLC | 768 | — | 3 |
| AS46561US | STEELSCAPE - STEELSCAPE, LLC | 768 | — | 3 |
| AS395987US | SEU-MORRISTOWN - Saint Elizabeth University | 768 | — | 3 |
| AS20176US | FNNI-AS20176 - First National Bank of Omaha | 768 | — | 3 |
| AS14620US | ITALK - iTalk Global Communications, Inc. | 768 | — | 3 |
| AS27161US | LITNICS-01 - Litnics, LLC | 768 | — | 3 |
| AS33252US | BASSPRO-AS - Bass Pro, LLC. | 768 | — | 3 |
| AS25907US | BRINKER-INT - BRINKER INTERNATIONAL INC | 768 | — | 3 |
| AS400980US | DANDBFIBER - D and B Broadband, LLC | 768 | — | 3 |
| AS14049US | GOLDEN-GATE-UNIV - Golden Gate University | 768 | — | 3 |
| AS210779US | BZL BREEZLE LLC | 768 | 4 | 7 |
| AS17240US | CLASSMATES-1 - PeopleConnect, Inc. | 768 | — | 3 |
| AS35947US | THRIVE-CA1 - Thrive Operations, LLC | 768 | — | 3 |
| AS11363US | FUJITSU-NORTH-AMERICA-INC - Fujitsu North America, Inc. | 768 | — | 2 |
| AS33160US | OLDREPUBLICTITLEAS - OLD REPUBLIC NATIONAL TITLE INSURANCE CO. | 768 | — | 3 |
| AS394748US | CITYOFFORTCOLLINS - City of Fort Collins | 768 | — | 3 |
| AS393513US | AS-SYNAPT - Synaptics Incorporated | 768 | — | 3 |
| AS14632US | BIA30ASN - Brown Advisory | 768 | — | 3 |
| AS32008US | PAYCHEX-L - Paychex Inc. | 768 | — | 3 |
| AS401781US | HOSTPEPPER - HostPepper, LLC | 768 | — | 3 |
| AS36393US | PFELJ - Pfizer Inc. | 768 | — | 2 |