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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 |
| 256 |
| — |
| 1 |
| AS393572US | FINGERLAKESNETWORK - FingerLakesNetwork LLC | 256 | — | 1 |
| AS36191US | QUALITYINSIGHTS - Quality Insights Inc. | 256 | — | 1 |
| AS32198US | MFPS-POTATOROLLS-01 - Martin's Famous Pastry Shoppe, Inc. | 256 | — | 1 |
| AS32871US | SCHWABE-NORTH-AMERICA-01 - Nature's Way | 256 | — | 1 |
| AS18437US | PITT-OHIO-EXPRESS-AS - Pitt-Ohio Express, LLC. | 256 | 3 | 4 |
| AS46111US | EDINA-REALTY-HOME-SERVICES - Edina Realty, Inc. | 256 | — | 1 |
| AS15314US | JENZABAR-ASN1 - jenzabar inc | 256 | — | 1 |
| AS397851US | SCCC-LIBERAL-01 - Seward County Community College | 256 | — | 1 |
| AS27217US | ACN-2 - Jewelry Television | 256 | 3 | 3 |
| AS40856US | SBL-ASN - Sarah Bush Lincoln Health Center | 256 | — | 1 |
| AS7213US | MASONCOMPANIESINC - Mason Companies, Inc. | 256 | — | 1 |
| AS401114US | COLUMBIACOUNTYWI - Columbia County | 256 | — | 1 |
| AS393373US | MORANTELECOLLC - MoranTeleco LLC | 256 | 256 | 2 |
| AS23880US | Yahoo-AEA - Internet content provider | 256 | 1 | 2 |
| AS11304US | BMH-ASN - Prisma Health | 256 | — | 1 |
| AS401200US | SQUARESPACE-CORP-01 - Squarespace, Inc. | 256 | — | 1 |
| AS26902US | CEKKENT - Cekkent LLC | 256 | 256 | 2 |
| AS396377US | FASTCLOUD - fastCLOUD | 256 | — | 1 |
| AS30034US | VCS-ASN - The Vermont Country Store, Inc. | 256 | — | 1 |
| AS395016US | WAKE-WIRELESS - WAKE WIRELESS | 256 | 65.5K | 2 |
| AS26711US | ICANN-MDR - ICANN | 256 | 1 | 2 |
| AS395835US | AJA-ASN - AJ Antunes & Co | 256 | — | 1 |
| AS19601US | CADIA - Cadian Capital Management, LP | 256 | — | 1 |
| AS54561US | SECUREDRAGON - Secure Dragon LLC. | 256 | 1 | 2 |
| AS30379US | JEFFPARISH - Parish of Jefferson | 256 | — | 1 |
| AS14034US | SWIRE-COCA-COLA-USA-DRAPER-REDUNDANT-ACCESS - Swire Pacific Holdings Inc. | 256 | — | 1 |
| AS394364US | RD-ASN - Red Diamond, Inc. | 256 | — | 1 |
| AS27238US | KANE - Kane Warehousing, Inc | 256 | — | 1 |
| AS62546US | FRISCOTXISD - Frisco Independent School District | 256 | — | 1 |
| AS63037US | ERISCO - ERISCO, LLC | 256 | 65.5K | 2 |
| AS21745US | USFOOD1 - US FOODS, INC. | 256 | — | 1 |
| AS397723US | LAST-MILE-NETWORKS - Last Mile Networks LLC | 256 | 65.5K | 2 |
| AS14269US | LIFELINE - Lifeline Computer Solutions, Inc. | 256 | — | 1 |
| AS401608US | HUNTERWEB - Hunter Web LLC | 256 | — | 1 |
| AS206718US | AS RFE/RL, INC. | 256 | — | 1 |
| AS19426US | HARRIS-COUNTY-ESD11-01 - Harris County ESD 11 Mobile Healthcare | 256 | — | 1 |
| AS25669US | TOWERPRODUCTS - MARKERTEK VIDEO SUPPLY | 256 | — | 1 |
| AS395615US | COF-EQX-SEA-PP - Capital One Financial Corporation | 256 | — | 1 |
| AS4980US | NO - Whole Sale | 256 | — | 1 |
| AS395960US | BUCK-INSTITUTE - Buck Institute for Research on Aging | 256 | — | 1 |
| AS54626US | ANALOG DEVICES - Analog Devices, Inc. | 256 | — | 1 |
| AS53882US | COMMUNITECT - Communitect, Inc | 256 | — | 1 |
| AS40008US | REDWOOD-MATERIALS - Redwood Materials, Inc. | 256 | — | 1 |
| AS46397US | MOSES-ASN - Moses & Singer LLP | 256 | — | 1 |
| AS53599US | KENOSHA-COUNTY-WI - Kenosha County | 256 | — | 1 |
| AS62817US | BARRETTHOSPITAL - BARRETT HOSPITAL AND HEALHCARE | 256 | — | 1 |