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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 | 24,555 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 644 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.6M | 1,303 |
| 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.
32,168 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 | 3,885 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 1,995 |
| AS701US | UUNET - Verizon Business | 43.6M | 994 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,354 |
| 512 |
| — |
| 2 |
| AS23356US | LAFC - Los Angeles Football Club | 512 | — | 2 |
| AS395037US | ASSFG01 - Sammons Financial Group, Inc. | 512 | — | 2 |
| AS36471US | KDSS-23-36471 - Kratos Defense & Security Solutions, Inc. | 512 | — | 2 |
| AS394975US | SFHEALTHPLAN - San Francisco Health Plan | 512 | — | 2 |
| AS398976US | ALT-1 - BELLE HOLDINGS LLC | 512 | — | 2 |
| AS35851US | BANKERSBANKOFKANSAS - Bankers' Bank of Kansas | 512 | — | 2 |
| AS40106US | OGIL-NA-SF - The Ogilvy Group, LLC | 512 | — | 2 |
| AS23734US | NETROUTINGINC-AS-AP - Netrouting Inc | 512 | — | 2 |
| AS394153US | VELOXINET - Veloxinet | 512 | — | 2 |
| AS46763US | RIEMER-BRAUNSTEIN - Riemer & Braunstein LLP | 512 | — | 2 |
| AS393465US | VEOLIA-NA - Veolia Environnement North America Operations, LLC | 512 | — | 2 |
| AS39990US | BCG - Boulder County Government | 512 | — | 2 |
| AS32630US | PCI-DB - Patterson Companies, Inc. | 512 | — | 2 |
| AS40216US | DSTIP - DSTIP Networks LLC | 512 | 258 | 5 |
| AS27369US | SWEDISH - Swedish Covenant Hospital | 512 | — | 2 |
| AS396928US | ASN-FC-01 - FB CORPORATION | 512 | — | 2 |
| AS395942US | PODS-CORP - PODS Enterprises, LLC | 512 | — | 2 |
| AS396359US | MASCOCABINETRY - Cabinetworks Group Michigan, LLC | 512 | — | 2 |
| AS402766US | MARKVD-NET - Mark | 512 | 256 | 3 |
| AS202261US | NetDEF-CH Network Device Education Foundation Inc | 512 | 2 | 4 |
| AS14293US | UNI-EDGE - UniEdge Networks LLC | 512 | — | 2 |
| AS53682US | COLO-1 - Ntiva, Inc | 512 | — | 2 |
| AS393864US | PRESTIGE-BROADBAND - Prestige Broadband LLC | 512 | — | 2 |
| AS53846US | UNITI-FIBER-VOICE - Uniti Fiber Holdings Inc. | 512 | — | 2 |
| AS26824US | VLUZNET-US - VLUZNET | 512 | — | 1 |
| AS396368US | TL-861 - TetherView LLC | 512 | — | 2 |
| AS395698US | BCBSKS - Blue Cross Blue Shield of Kansas, Inc. | 512 | — | 2 |
| AS17038US | FLORI-62 - FTD | 512 | — | 2 |
| AS398985US | CITY-OF-ARVADA - City of Arvada | 512 | — | 2 |
| AS25785US | REDL-1 - Real Estate Digital LLC | 512 | — | 2 |
| AS394823US | TFFI - Taylor Fresh Foods, Inc. | 512 | — | 2 |
| AS26378US | ADORAMA - ADORAMA | 512 | — | 2 |
| AS396505US | EMC - ENLOE MEDICAL CENTER | 512 | — | 1 |
| AS11211US | NCIC - NCIC Operator Services | 512 | — | 2 |
| AS394510US | ZITEL-ASN-BLOCK01 - Zitel | 512 | 4.1K | 3 |
| AS19682US | TLFXAS01 - TeleFlex Networks, LLC | 512 | — | 1 |
| AS15228US | OREILLYMEDIA-AS1 - O'Reilly Media, Inc. | 512 | — | 1 |
| AS401108US | DISCOUNT-TIRE - Discount Tire | 512 | — | 2 |
| AS31883US | TIM-2300 - Thornburg Investment Management Inc. | 512 | — | 2 |
| AS394498US | YMCA-OF-THE-NORTH - YMCA of the North | 512 | 1 | 3 |
| AS63329US | MARCUM-LLP - Marcum LLP | 512 | — | 2 |
| AS46924US | BJU-ASN - Bob Jones University | 512 | 2 | 4 |
| AS396109US | YOKO-NETWORKS - Yoko Networks Inc. | 512 | 4.1K | 3 |
| AS26208US | COUNTY-OF-ESSEX-NJ - County of Essex NJ | 512 | — | 2 |
| AS398952US | AG-ASN - AMBRY GENETICS CORPORATION | 512 | — | 1 |
| AS112US | AS112-PROJECT - DNS-OARC | 512 | 2 | 4 |