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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. | 218.1M | 24,656 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 644 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.6M | 1,306 |
| 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.
32,202 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 | 3,891 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 2,002 |
| AS701US | UUNET - Verizon Business | 43.6M | 993 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,357 |
| TMGHEALTH - TMG Health, Inc |
| 256 |
| — |
| 1 |
| AS401643US | DRAGONFLY-INTERNET-01 - Dragonfly Internet | 256 | 65.5K | 2 |
| AS55075US | BNS - Telecommunication Properties, Inc | 256 | — | 1 |
| AS53747US | WSSD-1-ASN - Wall Street Systems Delaware, Inc | 256 | — | 1 |
| AS1859US | DISN-PILOTNET5 - RTX BBN Technologies, Inc. | 256 | — | 1 |
| AS18984US | MOBOWARE - Moboware Inc. | 256 | — | 1 |
| AS14411US | MNCPPC-EIT - Maryland-National Capital Park and Planning Commission | 256 | — | 1 |
| AS397552US | NORTHEAST-DELTA-DENTAL - Northeast Delta Dental | 256 | — | 1 |
| AS46774US | MAYVI-AS - MAYVILLE ENGINEERING COMPANY, INC. | 256 | — | 1 |
| AS22715US | SALEM-INTERNET - Salem Internet, Inc. | 256 | 65.5K | 2 |
| AS22218US | US-MARLINK - Marlink, Inc. | 256 | — | 1 |
| AS17046US | ACTION-COMM - Action Communications, Inc. | 256 | — | 1 |
| AS11243US | HALAR-ATG1 - Advanced Technologies Group | 256 | — | 1 |
| AS46194US | SPECTRUM-EVERSTREAM-CITYSC - St Louis CITY SC | 256 | — | 1 |
| AS27574US | NTMWD-NORTH-TEXAS-MUNICIPAL-WATER-DISTRICT - North Texas Municipal Water District | 256 | — | 1 |
| AS27565US | BRIDGEWATER - Bridgewater Associates, Inc. | 256 | — | 1 |
| AS402825US | SCRUMPTIOUS-NET - Scrumptious | 256 | 256 | 2 |
| AS394438US | CITY-OF-PRINEVILLE - City of Prineville | 256 | — | 1 |
| AS394596US | CITYOFSANTAPAULA-CA - City of Santa Paula | 256 | — | 1 |
| AS398984US | ENTWINDER - Entwinder Networks | 256 | — | 1 |
| AS30378US | MIRON-CONST-01 - Miron Construction Co., Inc. | 256 | — | 1 |
| AS398058US | ECCC-EDU - East Central Community College | 256 | — | 1 |
| AS395644US | RGI - The Root Group, Inc. | 256 | — | 1 |
| AS11574US | SFGNET-AS - San Francisco Baseball Associates LLC | 256 | — | 1 |
| AS30384US | GM-AS NUMBER - Guild Mortgage Company LLC | 256 | — | 1 |
| AS53592US | KEPOS - Kepos Capital LP | 256 | — | 1 |
| AS18645US | UMHB-BELTON - UMHB | 256 | — | 1 |
| AS26913US | EDPRNA-ERNAL - EDP Renewables North America LLC | 256 | — | 1 |
| AS395498US | FLORIDAMARINE - Florida Marine | 256 | — | 1 |
| AS32930US | MMCHS - Meadville Medical Center | 256 | — | 1 |
| AS402137US | AMAYA-CLOUD-01 - AmayaCloud Inc | 256 | — | 1 |
| AS197767US | Zgocloud ZgoShop, Inc. | 256 | 256 | 2 |
| AS26457US | NONEXISTE-AS - nonexiste.net | 256 | 21 | 6 |
| AS30280US | TFCU - Teachers Federal Credit Union | 256 | — | 1 |
| AS21771US | NUCOR - Nucor | 256 | — | 1 |
| AS35952US | PARADOXNETWORKS-INC - ParadoxNetworks, Inc | 256 | 1 | 2 |
| AS3660US | BPC-ASN - Berry Global Inc | 256 | — | 1 |
| AS400327US | VIDVITA-USA-PA1 - VidVita LLC | 256 | — | 1 |
| AS26740US | LIFEWAVE-ORG-1 - LifeWave, Inc. | 256 | — | 1 |
| AS46301US | PRODEGE-LA - MyPoints.com, Inc. | 256 | — | 1 |
| AS54962US | MITCHELL-INTERNATIONAL - Mitchell International | 256 | — | 1 |
| AS399026US | BEC-PRIMARYASN - Bowen Engineering Corporation | 256 | — | 1 |
| AS54584US | PMHC - Phelps Memorial Health Center | 256 | — | 1 |
| AS397603US | SAHA-AS - Satellite Affordable Housing Associates | 256 | — | 1 |
| AS21950US | AUTOTEC - AutoTec LLC | 256 | — | 1 |
| AS21941US | SYNCSORT-INC - Precisely Software Incorporated | 256 | — | 1 |
| AS401908US | ASTROSHAPES-OH-01 - ASTRO SHAPES LLC | 256 | — | 1 |