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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 | 24,389 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 644 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.6M | 1,302 |
| 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.
32,169 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 | 3,885 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 1,996 |
| AS701US | UUNET - Verizon Business | 43.6M | 994 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,341 |
| 1K |
| — |
| 4 |
| AS20177US | EMPORIA-STATE-UNIVERSITY - Emporia State University | 1K | — | 2 |
| AS23291US | FLAGSTAR-BANK-US - Flagstar Bank | 1K | — | 4 |
| AS395401US | WPC-AK - Whitestone Power & Communications | 1K | 66.1K | 10 |
| AS55231US | 09172010 - Stratify IT, Inc. | 1K | — | 1 |
| AS29963US | MARYKAY-NA - Mary Kay Inc. | 1K | — | 2 |
| AS7011US | FRONTIER-AND-CITIZENS - Frontier Communications of America, Inc. | 1K | — | 4 |
| AS63386US | THEGEO-NET - The Greater Eastern Oregon Network, LLC | 1K | 4.1K | 4 |
| AS22761US | PSYCHO-SOLUTIONS-LLC - Psycho Solutions LLC | 1K | — | 4 |
| AS54380US | THOUGHTWAVE - ThoughtWave Technologies, Inc. | 1K | 65.6K | 10 |
| AS14243US | CGS-ASP - CGS | 1K | — | 1 |
| AS7407US | MCI-SGUM - Verizon Business | 1K | — | 1 |
| AS23199US | COMDATA-NETWORK - Comdata,INC | 1K | — | 4 |
| AS399269US | TORRANCE-01 - City of Torrance | 1K | — | 4 |
| AS399251US | KBSI-ASN - Koch Industries, Inc. | 1K | — | 3 |
| AS398450US | CUSTOMCABLE-FISHERISLAND-2020 - Custom Cable LLLP | 1K | — | 1 |
| AS14940US | LIGO-HANFORD-OBSERVATORY - LIGO Livingston Observatory | 1K | — | 1 |
| AS401037US | APOG-WVU - Apogee Telecom Inc. | 1K | — | 3 |
| AS14591US | STANDARD-PROCESS-INC-1 - Standard Process Inc. | 1K | — | 3 |
| AS63398US | TWINRIVERS-USD - Twin Rivers Unified School District | 1K | — | 3 |
| AS33673US | NE-AS1 - MCN Online, LLC | 1K | — | 1 |
| AS393496US | OMNIHOTELS - OMNI HOTELS MANAGEMENT CORPORATION | 1K | — | 4 |
| AS394922US | CGIFEDERAL - CGI Federal | 1K | — | 4 |
| AS207088US | ADOARD ADOARD GLOBAL REACH LLC | 1K | — | 1 |
| AS3629US | NYSERNET-BLK - NYSERNet | 1K | 1 | 2 |
| AS26399US | BROADMOOR - Broadmoor Hotel Inc | 1K | — | 4 |
| AS26569US | COLLEGENET - CollegeNET | 1K | 1 | 2 |
| AS26137US | LNW-6601-BERMUDA-RD - Light & Wonder, Inc. | 1K | — | 1 |
| AS399632US | TI-DALLAS-QD-HUB - Texas Instruments Incorporated | 1K | — | 4 |
| AS36367US | AGN-TECH - Alchemy Global Networks, LLC | 1K | 3 | 7 |
| AS15041US | ETRN-MKC - ETRN.com, Inc. | 1K | — | 4 |
| AS32955US | TAMUT-MAIN - Texas A&M University-Texarkana | 1K | — | 1 |
| AS394377US | COUNTY-OF-TULARE - County of Tulare | 1K | — | 3 |
| AS395047US | ARTIX-NET - Artix Networks LLC | 1K | 272 | 6 |
| AS63374US | INCREDIBLETECH - Incredible Technologies Inc | 1K | — | 4 |
| AS14740US | MAGNA5 - Magna5 MS LLC | 1K | — | 3 |
| AS39937US | LTECH - LTech Solutions, Ltd. | 1K | 65.5K | 5 |
| AS402535US | MOORGADE - Moorgade | 1K | — | 4 |
| AS3736US | AMERIWEB - American Webmasters Inc. | 1K | 4.1K | 4 |
| AS32464US | UICOMP-AS - University Of Illinois College Of Medicine At Peoria | 1K | — | 1 |
| AS400927US | BARGER-CREEK - Barger Creek Wireless | 1K | — | 1 |
| AS133144US | M8X8INC-AS-AP - 8x8, Inc. | 1K | — | 4 |
| AS23142US | NEOGENOMICS-ASN - NeoGenomics | 1K | — | 3 |
| AS4445US | CWI-AS - Vodafone Americas | 1K | — | 4 |
| AS53519US | CMHC-ASN - Central Maine Medical Family | 1K | — | 4 |
| AS397822US | CRC-ASN - California Resources Corporation | 1K | — | 3 |
| AS54746US | KLAZO-ASN - KLAZO, LLC | 1K | — | 4 |