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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 | 3,139 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 211.2M | 21,173 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 113.7M | 639 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,242 |
| 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.
31,994 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 229 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 383 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 49.3M | 3,668 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.7M | 1,949 |
| AS701US | UUNET - Verizon Business | 43.6M | 998 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,365 |
| RUSSELL7234 - Frank Russell |
| 512 |
| — |
| 1 |
| AS401239US | ASN-RKECO-NET - Roanoke County | 512 | — | 2 |
| AS399619US | BACKCOUNTRY-BROADBAND - Backcountry Broadband LLC | 512 | 4.6K | 12 |
| AS19682US | TLFXAS01 - TeleFlex Networks, LLC | 512 | — | 1 |
| AS394302US | IAD-COLO - Qualcomm, Inc. | 512 | 2 | 3 |
| AS394647US | AS394647 - Crown Castle Fiber LLC | 512 | — | 1 |
| AS19652US | VACATION-EXPRESS - VACATION EXPRESS | 512 | — | 2 |
| AS401441US | GOOSEWORKS - Gooseworks LLC | 512 | 4.1K | 2 |
| AS399417US | VORTEXOKMAIN - VortexOK.net LLC | 512 | 65.5K | 3 |
| AS53709US | SPORTING-KC - ONGOAL, LLC | 512 | — | 1 |
| AS62894US | PSD-EDTEC-K20-RC-01 - Puyallup School District | 512 | — | 2 |
| AS24865US | SMOTI-AS Keith Mitchell | 512 | — | 1 |
| AS55132US | SAJAH - Beverly Hills Hotel | 512 | — | 2 |
| AS19125US | ROCK-NET - Rockford Corporation | 512 | — | 2 |
| AS31752US | HEI-30-31752 - Heartland Express, Inc. of Iowa | 512 | — | 2 |
| AS393567US | AS-EQX-ATLC-01 - Atlanticus Holdings Corporation | 512 | — | 2 |
| AS22451US | HRH - Halifax Regional Hospital | 512 | — | 2 |
| AS398459US | ROGUECU-ORG-01 - Rogue Credit Union | 512 | — | 2 |
| AS394850US | CITY-OF-CAPE-CORAL - City of Cape Coral | 512 | — | 2 |
| AS32306US | FALCK-MOBILE-HEALTH-CORP - Falck USA, Inc. | 512 | — | 2 |
| AS399983US | APOG-MILLERSVILLE - Apogee Telecom Inc. | 512 | — | 1 |
| AS23190US | AESPAC - AES Pacific Inc. | 512 | — | 2 |
| AS22928US | CMR1385 - CMR LLC | 512 | — | 2 |
| AS13710US | SYSTEMS-METHODS - Systems & Methods, Inc. | 512 | — | 1 |
| AS36766US | KETV-TV - Hearst-Argyle Television, Inc. | 512 | — | 2 |
| AS40324US | TGNA-KVUE - TEGNA Inc. | 512 | — | 2 |
| AS400034US | CIRHLD - Circuit Holdings | 512 | — | 2 |
| AS20388US | ETI-FLL1 - Ewart Technologies, Inc. | 512 | — | 2 |
| AS27170US | QBE-AMERICAS-ORD - QBE Americas, Inc. | 512 | — | 2 |
| AS26998US | NFII-ASN - NFI Industries, Inc | 512 | — | 2 |
| AS31922US | DATTO-ENT - Datto, LLC | 512 | — | 2 |
| AS54728US | DATAPLANE - DataPlane.org | 512 | 1 | 3 |
| AS396247US | AESHS125 - Adlai E. Stevenson High School | 512 | — | 2 |
| AS7767US | EB - Encyclopaedia Britannica | 512 | 1 | 3 |
| AS32946US | RPU-1892 - Rochester Public Utilities | 512 | — | 2 |
| AS394916US | PHLAIRPORT - Philadelphia International Airport | 512 | — | 2 |
| AS40205US | PRISMA-ASN-1 - PRISMA HOLDINGS, LLC | 512 | 3 | 5 |
| AS27453US | ASN1 - Systemax Inc. | 512 | — | 2 |
| AS399480US | TI-GARLAND-QX-HUB - Texas Instruments Incorporated | 512 | — | 2 |
| AS14508US | THEMASCHHOFFS - The Maschhoffs, LLC | 512 | — | 2 |
| AS16622US | NOVARAD - Novarad Corporation | 512 | 1 | 2 |
| AS4367US | SECSTATE-CA-GOV - California Secretary of State | 512 | — | 2 |
| AS16896US | NCN - NCN | 512 | — | 2 |
| AS397476US | BCSUSA-LO-ASN-01 - Biotronik Corporate Services U.S., Inc. | 512 | — | 2 |
| AS19858US | GENSLER - M. Arthur Gensler Jr. & Associates, Inc. | 512 | — | 2 |
| AS13814US | RCB1936 - RCB Bank | 512 | — | 2 |
| AS400656US | METRO-SERVICE - Metro Service Center | 512 | 65.5K | 2 |