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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 |
| NPH - Nazarene Publishing House |
| 256 |
| — |
| 1 |
| AS399842US | EA-VICTORIA - Electronic Arts, Inc. | 256 | — | 1 |
| AS32608US | US-NEW-ERA-FIBER - US NEW ERA FIBER LLC | 256 | 65.5K | 2 |
| AS54959US | LM-AFSS - Lockheed Martin Corporation | 256 | — | 1 |
| AS398987US | NS-GLOBAL - PhirePhly Design | 256 | 1 | 2 |
| AS62765US | ABMG-HQ - Atlantic Bay Mortgage Group, LLC | 256 | — | 1 |
| AS393473US | BURRIS-LOGISTICS - Burris Logistics | 256 | — | 1 |
| AS397862US | CCFCU - Catalyst Corporate Federal Credit Union | 256 | — | 1 |
| AS30542US | MOVI-R-TECH-SOLUTIONS - MOVI-R | 256 | — | 1 |
| AS4893US | RGM-ASN-1 - DRW Holdings, LLC | 256 | — | 1 |
| AS55283US | FHN-ASN-01 - FHN | 256 | — | 1 |
| AS63194US | CRASH - Crashlytics, Inc | 256 | — | 1 |
| AS63432US | PSRFA-ANS - Puget Sound Regional Fire Authority | 256 | — | 1 |
| AS400845US | ASN-ECX - ECXSYSTEMS, LLC | 256 | — | 1 |
| AS19434US | SPRICHARDS - S. P. RICHARDS COMPANY | 256 | — | 1 |
| AS54792US | CHICAGOWHITESOX - Chicago White Sox, LTD. | 256 | — | 1 |
| AS399413US | GRMC - Greater Regional Medical Center | 256 | — | 1 |
| AS394274US | PHMC-AS1 - Public Health Management Corporation | 256 | — | 1 |
| AS30518US | AS-SELF-REGIONAL-HEALTHCARE - Self Regional Healthcare | 256 | — | 1 |
| AS402057US | NEURONG - NEURON DC INC | 256 | 16 | 2 |
| AS400312US | KHITOMER-NETWORKS - KHITOMER NETWORKS, LLC | 256 | 65.5K | 2 |
| AS395331US | NEW-YORK-PROTON-MANAGEMENT - New York Proton Management, LLC | 256 | — | 1 |
| AS13762US | AS13762 - Hunter Douglas Inc. | 256 | — | 1 |
| AS32936US | LAKEWOODCHURCH - Lakewood Church | 256 | — | 1 |
| AS396418US | DCSTECH-US - DCSTech, LLC | 256 | 1 | 2 |
| AS36726US | ARROW-INTERNATIONAL - Arrow International Inc. | 256 | 1 | 2 |
| AS393286US | CASCADEAS - Cascade Investment LLC | 256 | — | 1 |
| AS22551US | MOA-192-206-58-0 - Municipality of Anchorage | 256 | — | 1 |
| AS395659US | SEAWORLD-PARKS-AND-ENTERTAINMENT - SeaWorld Parks & Entertainment, Inc. | 256 | — | 1 |
| AS400062US | CALL-NETWORKS - Call Networks, Inc | 256 | — | 1 |
| AS32492US | DANA - DANA INNOVATION | 256 | — | 1 |
| AS6343US | OMEGASYS-DC1 - Omega Systems Consultants, LLC | 256 | — | 1 |
| AS53723US | ROUTESI-MAIN - Routesi LLC | 256 | 256 | 2 |
| AS397680US | SDPC - The School District of Pickens County, South Carolina | 256 | — | 1 |
| AS22789US | PUSHWOOSH - Pushwoosh | 256 | — | 1 |
| AS400077US | PCCLD-PRIMARY-PUBLIC01 - Pueblo City-County Library District | 256 | — | 1 |
| AS393396US | TMLLC - Technical Momentum, LLC | 256 | — | 1 |
| AS399276US | KCCURRENT - KC Current | 256 | — | 1 |
| AS394060US | SEABOARDCORP - SEABOARD CORPORATION | 256 | — | 1 |
| AS59678US | SYSTEM36 SYSTEM36 LLC | 256 | 67.9K | 8 |
| AS401012US | LTIS-BB - Laurens Technologies Internet Services | 256 | 267 | 13 |
| AS401929US | BANKAI - Bankai Group Inc | 256 | — | 1 |
| AS2538US | IBM-PLP - IBM | 256 | — | 1 |
| AS401432US | KIRKLAND-ELLIS-FF - Kirkland & Ellis LLP | 256 | — | 1 |
| AS26371US | SWMC - Peace Health | 256 | — | 1 |
| AS54295US | CADC-NET - Deep Edge | 256 | — | 1 |
| AS400681US | KALEIDESCAPE-CANADA-INC - Kaleidescape, Inc. | 256 | — | 1 |