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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 | 3,133 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 219M | 23,661 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 645 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,361 |
| 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.
32,363 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 236 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 439 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.8M | 3,911 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 45M | 2,046 |
| AS701US | UUNET - Verizon Business | 43.6M | 996 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.8M | 4,490 |
| 1.3K |
| — |
| 5 |
| AS397374US | AS-LOANSCIENCE - Loan Science | 1.3K | — | 4 |
| AS399640US | DIGITAL-BLVD-01 - Digital Boulevard | 1.3K | — | 2 |
| AS40080US | AS-IRLTOOLKIT - IRLToolkit Inc. | 1.3K | 3 | 8 |
| AS26063US | ALCONLABS-11975 - Alcon Labs, Inc. | 1.3K | — | 5 |
| AS22606US | EXACT-7 - Salesforce.com, Inc. | 1.3K | — | 5 |
| AS14139US | AS-MAXOR - Maxor National Pharmacy Services, LLC | 1.3K | — | 4 |
| AS36025US | FASTEST-INTERNET-IN-PARKCITY-UTAH - WickedFastInternet.com | 1.3K | — | 2 |
| AS15315US | IVANET-LISBON - IBASIS INC. | 1.3K | — | 4 |
| AS401141US | NY-DC - EASTERN BANK | 1.3K | — | 5 |
| AS32113US | AS-LEFRAK - The Lefrak Organization, Inc. | 1.3K | — | 3 |
| AS402782US | AS-JPY - TAIPEI101 | 1.3K | 33 | 7 |
| AS22020US | PLANETMAGPIE - Magpie Internet Communications, Corp. | 1.3K | — | 2 |
| AS26152US | WXCCE - Cisco Webex LLC | 1.3K | — | 5 |
| AS26197US | HIGHJUMPSOFTWARE - Korber Supply Chain US, Inc. | 1.3K | — | 5 |
| AS40464US | ECLIPSENET - Eclipse Networks, Inc. | 1.3K | — | 5 |
| AS63434US | NFA - National Futures Association | 1.3K | — | 5 |
| AS207847US | CloudBlast CloudBlast LLC | 1.3K | 19 | 9 |
| AS398200US | JTN-COMMUNICATIONS - JTN Communications, LLC | 1.3K | — | 4 |
| AS33622US | NEXET-NETWORK - NEXET, LLC | 1.3K | 2 | 4 |
| AS401990US | STORM-NET - StormNode Systems LLC | 1.3K | — | 5 |
| AS53603US | MAHINDRA-SATYAM-CLV - TechMahindra Americas Inc. | 1.3K | — | 4 |
| AS18974US | TRULIANT-1 - Truliant Federal Credit Union | 1.3K | — | 4 |
| AS55243US | CEDARNET - Cedar Wireless, Inc. | 1.3K | 4 | 9 |
| AS399587US | NODERINGS-AS - NodeRings LLC | 1.3K | 4.1K | 4 |
| AS398989US | DEEPINTENT - DeepIntent, Inc. | 1.3K | 1 | 6 |
| AS22139US | MARIN-COUNTY-01 - County of Marin | 1.3K | — | 3 |
| AS19179US | COEP - City of El Paso | 1.3K | — | 4 |
| AS402374US | DELCAMBRE-CO - Delcambre | 1.3K | — | 5 |
| AS40625US | TWC-WESTELCOM-MULTIHOMED - Jefferson Community College | 1.3K | — | 5 |
| AS19105US | FIRSTBANK - FirstBank | 1.3K | — | 5 |
| AS40860US | WBIA-1-40860 - Word and Brown Insurance Administrators, Inc | 1.3K | — | 2 |
| AS397753US | EAST-CREEK-NETWORKS-FL-001 - East Creek Networks | 1.3K | — | 2 |
| AS32544US | FOTOKEM-INDUSTRIES - FotoKem Industries, Inc | 1.3K | — | 2 |
| AS8104US | PENTA-DC1 - Pentagon Federal Credit Union | 1.3K | — | 4 |
| AS213510US | EJOHNSON Eric Johnson | 1.3K | — | 2 |
| AS17366US | ARINCASN - ARINC INCORPORATED | 1.3K | — | 5 |
| AS396842US | RURALNET - RuralNET | 1.3K | 4.1K | 3 |
| AS18786US | ALL-POINTS-BROADBAND-1 - All Points Broadband | 1.3K | — | 2 |
| AS400397US | HERKIMER-COUNTY-COMMUNITY-COLLEGE - Herkimer County Community College | 1.3K | — | 5 |
| AS399435US | LIPAN-TELEPHONE-COMPANY - Lipan Telephone Company | 1.3K | — | 4 |
| AS18673US | CFP-ASN - Casey Family Programs | 1.3K | — | 5 |
| AS399334US | SKYSILK-02 - Skysilk | 1.3K | 1 | 4 |
| AS395988US | ECFMG - ECFMG | 1.3K | — | 2 |
| AS2274US | CBO - Congressional Budget Office | 1.3K | — | 5 |
| AS7720US | SKYWOLF-AS-AP - Skywolf Technology LLC | 1.3K | 5 | 9 |
| AS401725US | OPENINFRA-TX - Open Infra Inc. | 1.3K | 256 | 5 |