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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 | 24,632 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 644 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.6M | 1,307 |
| 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.
32,210 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 | 3,891 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 2,002 |
| AS701US | UUNET - Verizon Business | 43.6M | 993 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,359 |
| SIFIBE - SiFibe, LLC |
| 256 |
| — |
| 1 |
| AS393510US | SFHSH-ASNUMBER - St Francis Healthcare System of Hawaii | 256 | — | 1 |
| AS402144US | NETWORKING-WEST-VIRGINIA - Networking West Virginia | 256 | — | 1 |
| AS35619US | MHS-331-35619 - Amergis Healthcare Staffing, Inc. | 256 | — | 1 |
| AS46733US | X6CNET - x6c | 256 | 7 | 8 |
| AS33669US | MEHARRY-I2 - Meharry Medical College | 256 | — | 1 |
| AS400524US | LCI-ASN-01 - LCI II, Inc. | 256 | — | 1 |
| AS14793US | API-DIGITAL - NeoNova Network Services, LLC | 256 | — | 1 |
| AS395311US | MIDWAYUSA01 - MidwayUSA | 256 | — | 1 |
| AS399664US | EIS-ASN-01 - Eclipse Integrated Systems, Inc | 256 | — | 1 |
| AS14582US | DICKINSON-FINANCIAL-CORPORATION - Dickinson Financial Corporation | 256 | — | 1 |
| AS32859US | JEGS-HIGH-PERFORMANCE-ASN - JEGS | 256 | — | 1 |
| AS4923US | AS-SCF-DC - SCF | 256 | — | 1 |
| AS140890US | MCDCORP-GLOBAL-AS-AP - McDonald's Corporation | 256 | — | 1 |
| AS393739US | AJN-DC-USA - Al Jazeera International (USA), Inc. | 256 | — | 1 |
| AS15210US | VIV-ASN - Vividion Therapeutics, Inc. | 256 | — | 1 |
| AS32585US | KSCM-AS - King Street Capital Management, L.P. | 256 | — | 1 |
| AS397452US | ANDOVER-1 - Town of Andover MA | 256 | — | 1 |
| AS30537US | NUMERICACU - Numerica Credit Union | 256 | — | 1 |
| AS401858US | ATTITUDEONLINE - Attitude Online | 256 | — | 1 |
| AS14296US | SPRINGFD - Spring Fire Department | 256 | 16 | 2 |
| AS54093US | NORTHERN-LIGHT-MAYO-HOSPITAL - Eastern Maine Healthcare Systems | 256 | — | 1 |
| AS40097US | PRINTINGFORLESS - Printingforless.com, Inc. | 256 | — | 1 |
| AS401313US | NOVACOAST - Novacoast Inc | 256 | 1 | 2 |
| AS16660US | COF-EQX-SJN-PP - Capital One Financial Corporation | 256 | — | 1 |
| AS400798US | PITIX-INFRA - Pittsburgh Internet Exchange | 256 | 4.1K | 2 |
| AS36188US | ABL-AS - Alston & Bird, LLP | 256 | — | 1 |
| AS46275US | ACU - AcuCall | 256 | — | 1 |
| AS402317US | RP-GLOBAL - Medical | 256 | — | 1 |
| AS394489US | LAMINAR-NETWORKS-01 - Laminar Networks LLC | 256 | — | 1 |
| AS400986US | ADSYSTECH-AS-01 - Adsystech, Inc. | 256 | — | 1 |
| AS402397US | 17SOLUTIONS-LLC - 17 | 256 | 1 | 2 |
| AS396380US | AS-ACCESSLA - ACCESS SERVICES | 256 | — | 1 |
| AS396847US | SDC - SDC Internet | 256 | 4.4K | 3 |
| AS394969US | LOLAWIRELESS - Lola Wireless | 256 | 65.5K | 2 |
| AS399747US | AMSP-ASN - Aaron McDaniel, Sole Proprietor | 256 | 3 | 4 |
| AS401361US | AI-401361 - Andromeda Industries, LLC | 256 | 0 | 2 |
| AS400027US | ECH-01 - Earlychildhood LLC | 256 | — | 1 |
| AS396934US | KOLLMORGEN - Kollmorgen Corporation | 256 | — | 1 |
| AS399366US | KIRKLAND-ELLIS-DC - Kirkland & Ellis LLP | 256 | — | 1 |
| AS22233US | CNB-AS - City National Bank of Florida | 256 | — | 1 |
| AS395314US | AECC-SANJUANPOOLS-ASN - American Environmental Container Corp. | 256 | 256 | 2 |
| AS46534US | VISIO-ASN - Vision Wifi Inc | 256 | — | 1 |
| AS6248US | DEKA-R-D - DEKA Research & Development Corp | 256 | — | 1 |
| AS399253US | FLAGLER-CLERK - Flagler County Clerk of the Circuit Court & Comptroller | 256 | — | 1 |
| AS396192US | SJTA - South Jersey Transportation Authority | 256 | — | 1 |
| AS26830US | ASN-OPERS - OPERS | 256 | 1 | 2 |