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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 | 3,134 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 218.2M | 25,263 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 641 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,336 |
| 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.
32,247 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 | 3,900 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 2,004 |
| AS701US | UUNET - Verizon Business | 43.6M | 993 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,350 |
| 1.5K |
| 48 |
| 54 |
| AS53498US | FORD-FOUNDATION - Ford Foundation | 1.5K | — | 3 |
| AS398571US | CLEVELAND-COUNTY-TEL-01 - CLEVELAND COUNTY TELEPHONE CO. INC. | 1.5K | — | 2 |
| AS31921US | MALONE-ASN - Malone University | 1.5K | 1 | 7 |
| AS23415US | G5INTERNET - G5 INTERNET, LLC | 1.5K | — | 2 |
| AS11756US | CHLA - Children's Hospital Los Angeles | 1.5K | — | 4 |
| AS393507US | GUSHISYS - Gush I Systems | 1.5K | 16 | 6 |
| AS21882US | SMART-CITY-PHCC - SMART CITY NETWORKS, LIMITED PARTNERSHIP | 1.5K | — | 2 |
| AS12167US | LIGHTWAVE-DALLAS - LightWave Networks | 1.5K | 3 | 8 |
| AS26083US | NEWEDGE-ASN1 - Newedge Facilities Management, Inc. | 1.5K | — | 6 |
| AS398029US | AQUATIC-PUBLIC-01 - Aquatic Group LLC | 1.5K | — | 5 |
| AS36673US | VECTREN63-64-13-1 - Vectren Utility Holdings, Inc. | 1.5K | — | 6 |
| AS25931US | SDXBF-DC-1 - Sodexo, Inc. | 1.5K | — | 6 |
| AS395799US | SVB - Soundview Broadcasting, LLC | 1.5K | — | 3 |
| AS55052US | KMBSU-AS - Konica Minolta Business Solutions U.S.A., Inc. | 1.5K | — | 3 |
| AS400384US | HOSTINGS-HOUSE-US - Hostings House | 1.5K | — | 3 |
| AS54552US | SP-US-EAST1 - Samaritan's Purse | 1.5K | — | 3 |
| AS35997US | UNITED-FINANCIAL-SERVICES - UFS LLC | 1.5K | — | 6 |
| AS40499US | WG - Washington Gas | 1.5K | — | 6 |
| AS3384US | CELT - Center for Educational Leadership and Technology | 1.5K | — | 3 |
| AS400069US | SONICSPECTRUM-01 - SonicPCS | 1.5K | — | 6 |
| AS13453US | DSRGLOBAL-COM - DIVERSIFIED SYSTEMS RESOURCES, LTD | 1.5K | — | 3 |
| AS22096US | TIGRISDATA - Tigris Data Inc. | 1.5K | 65.5K | 4 |
| AS62620US | IRVINECO - THE IRVINE COMPANY LLC | 1.5K | — | 3 |
| AS398229US | MCLLC-RANGE-01 - Mobile Communications, LLC | 1.5K | — | 2 |
| AS399024US | MIT-366-BMK - Marin IT, Inc. | 1.5K | — | 2 |
| AS53855US | RIPPLE-01 - Ripple | 1.5K | — | 6 |
| AS46796US | SLAPPEYTEL-NET - Slappey Telephone, Inc. | 1.5K | — | 6 |
| AS22436US | SONICNETINC - SonicNet Inc. | 1.5K | — | 5 |
| AS40082US | APOG-COC - Apogee Telecom Inc. | 1.5K | — | 4 |
| AS5715US | ONVOY - Inteliquent, inc. | 1.5K | 65.5K | 7 |
| AS30144US | BQI - BQ Internet Corporation | 1.5K | — | 3 |
| AS219401US | YEAH-AS Yeah Tech LLC | 1.5K | — | 5 |
| AS10616US | NTIS - National Oceanic and Atmospheric Administration | 1.5K | 256 | 7 |
| AS215039US | nodesty Nodesty LLC | 1.5K | 18 | 9 |
| AS63290US | QCSTE-AS - QCSTelecom, Inc. | 1.5K | 65.5K | 4 |
| AS27268US | CHICKASAW - The Chickasaw Nation | 1.5K | — | 6 |
| AS55067US | CHILDRENSMN - Childrens Hospitals and Clinics of Minnesota | 1.5K | — | 3 |
| AS4468US | EASYLINK4 - AT&T Enterprises, LLC | 1.5K | — | 6 |
| AS402281US | VIX - Vesionix LLC | 1.5K | — | 6 |
| AS30650US | ALTA-RESOURCES - Alta Resources Corp. | 1.5K | — | 3 |
| AS19819US | BRADYCOM - Brady Communications, LLC | 1.5K | — | 6 |
| AS53745US | NORDKLETT-NET - Nordklett Inc. | 1.5K | — | 6 |
| AS26842US | MFXCHANGE US INC - MFXCHANGE US, INC | 1.5K | — | 6 |
| AS16886US | HEB-AS-PRIMARY - H-E-B, LP | 1.5K | — | 6 |
| AS62671US | UNIVERSITY-OF-COLORADO-SYSTEM - ECS-Infrastructure | 1.5K | — | 3 |
| AS53605US | PHOEN-56 - PhoenixNAP LLC | 1.5K | — | 2 |