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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) | 227.4M | 3,133 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 217.9M | 24,512 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 643 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.7M | 1,322 |
| 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.
32,235 autonomous systems registered to United States. Click an AS for detail.
| 72.9M |
| 229 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 437 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.6M | 3,906 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 2,002 |
| AS701US | UUNET - Verizon Business | 43.6M | 993 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.7M | 4,281 |
| — |
| — |
| 0 |
| AS13964US | SBCIS-TPKAKS - AT&T Enterprises, LLC | — | — | 0 |
| AS14028US | FULBRIGHT-JAWORSKI - Fulbright & Jaworski L.L.P. | — | — | 0 |
| AS14075US | NPC-ASN - National Pen | — | — | 0 |
| AS14093US | GAINV - General American Investors Company, Inc. | — | — | 0 |
| AS14165US | FASTLINE-PUBLICATIONS - Fastline Publications, LLC | — | — | 0 |
| AS14172US | X2NSAT-API - X2nSat, Inc | — | — | 0 |
| AS14198US | JTI-LOGAN-UT-1 - New Dawn Technologies | — | — | 0 |
| AS14275US | AUREON-14275 - Aureon Network Services | — | — | 0 |
| AS14288US | MPINET - MPInet | — | — | 0 |
| AS14324US | XEVPS - XeVPS L.L.C | — | — | 0 |
| AS14474US | AP-ASN-01 - AlixPartners, LLP | — | — | 0 |
| AS14481US | BRODARTCO - Brodart Company | — | — | 0 |
| AS14506US | ORCL-ASHBURN3 - Oracle Corporation | — | — | 0 |
| AS14568US | SIRVA - North American Van Lines | — | — | 0 |
| AS14633US | GLOBAL-DATA-LINK - Global Data Link, Inc | — | — | 0 |
| AS14651US | BC - B00B Collective | — | — | 0 |
| AS14715US | NICORINC - AGL Resources Inc. | — | — | 0 |
| AS14758US | EATEL - REV | — | — | 0 |
| AS14761US | SCS-ASN - SCS Financial Services, LLC | — | — | 0 |
| AS14892US | SCIV-INT - Scivantage, Inc | — | — | 0 |
| AS14912US | KYN-GTS - Kyndryl | — | — | 0 |
| AS14985US | CROWNCASTLE-AS14985 - Crown Castle Fiber LLC | — | — | 0 |
| AS15161US | STRADLEY - Stradley Ronon Stevens & Young, LLP | — | — | 0 |
| AS15179US | AS15179 - Oracle Corporation | — | — | 0 |
| AS15218US | ASN-CXA-OK-15218-CBS - Cox Communications Inc. | — | — | 0 |
| AS15309US | MBAEA-AS - Mississippi Bend Area Education Agency | — | — | 0 |
| AS16449US | M2NGAGE2 - M2ngage Telecommunications II Corp. | — | — | 0 |
| AS16513US | COXMEDIA - Cox Newspapers/AJC | — | — | 0 |
| AS16514US | TRIPOS-INC - Certara USA, Inc. | — | — | 0 |
| AS16539US | MERCANTILCB - Amerant Bank, N.A. | — | — | 0 |
| AS16577US | DIGITALEDGE-2 - DIGITAL EDGE VENTURES INC. | — | — | 0 |
| AS16662US | AZUS01 - AstraZeneca Pharmaceuticals LP | — | — | 0 |
| AS16722US | INTERNET-SERVICE - Internet Service, Inc. | — | — | 0 |
| AS16790US | TNBCI-TRANSNATIONAL-BANK-CARD - TransNational Bank Card | — | — | 0 |
| AS16817US | BHN-16817-NA - Charter Communications, Inc | — | — | 0 |
| AS16869US | MIRAPOINT-RDOM - Critical Path, LLC | — | — | 0 |
| AS16902US | VISTRAENERGY-16902 - Vistra Corporate Services Company | — | — | 0 |
| AS16916US | CALLTOWER-16916 - CallTower, Inc. | — | — | 0 |
| AS16997US | EPICOR - EPICOR | — | — | 0 |
| AS17128US | THL-PARTNERS - Thomas H. Lee Management Co., LLC | — | — | 0 |
| AS17280US | ASN-PRIORITY-HEALTH - Priority Health | — | — | 0 |
| AS17295US | EHI-CALLCENTER - eHealthInsurance Services Inc. | — | — | 0 |
| AS18504US | FLASHSEATS-APOD-ASN1001 - Veritix | — | — | 0 |
| AS18508US | YUME-VA - RhythmOne, LLC | — | — | 0 |
| AS18536US | ESERV-2 - ESERVER SPACE INC. | — | — | 0 |
| AS18566US | MEGAPATH5-US - GTT Americas, LLC | — | — | 0 |