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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 | 24,635 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 642 |
| 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.
32,220 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 233 |
| 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 | 2,003 |
| AS701US | UUNET - Verizon Business | 43.6M | 992 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,360 |
| 256 |
| — |
| 1 |
| AS63180US | MTESC - STS Tire & Auto Centers | 256 | — | 1 |
| AS213801US | NATHANMOORE Nathan Moore | 256 | 17 | 3 |
| AS20274US | FVCC-AS - Flathead Valley Community College | 256 | — | 1 |
| AS395603US | NASSAU-COLISEUM - AEG | 256 | — | 1 |
| AS925US | SIFIBE - SiFibe, LLC | 256 | — | 1 |
| AS394796US | MIDLOTHIAN-01 - City of Midlothian | 256 | — | 1 |
| AS32859US | JEGS-HIGH-PERFORMANCE-ASN - JEGS | 256 | — | 1 |
| AS916US | STALWART-ASN-01 - Stalwart Wireless | 256 | 256 | 2 |
| AS400265US | DWS-AUL-INT - Disney Worldwide Services, Inc. | 256 | — | 1 |
| AS399131US | CITY-OF-DAYTON-TN-PUBLIC - City of Dayton | 256 | — | 1 |
| AS12048US | HALLCON-ASN-01 - Hallcon Corporation | 256 | — | 1 |
| AS7013US | AS-HSLC-01 - Health Sciences Libraries Consortium | 256 | — | 1 |
| AS35944US | MEYER-SOUND - Meyer Sound | 256 | — | 1 |
| AS396508US | MICHELS-CORPORATION - Michels Corporation | 256 | — | 1 |
| AS394817US | THE-SALVATION-ARMY-USE - The Salvation Army | 256 | — | 1 |
| AS401760US | NETKIND - Netkind LLC | 256 | 1 | 2 |
| AS55210US | SAMC-HCHA - Southeast Alabama Medical Center | 256 | — | 1 |
| AS401828US | ARLINGTON-TV-COOPERATIVE - Arlington T-V Cooperative, Inc | 256 | — | 1 |
| AS135424US | EAAPPL-AS-AP - Electronic Arts Inc. for KR | 256 | — | 1 |
| AS398428US | NMTRANS-HQ-AS01 - N&M Transfer Co., Inc. | 256 | — | 1 |
| AS27625US | UBNT-AS - Ubiquiti Networks, Inc. | 256 | 1 | 2 |
| AS35866US | SILVER-CHIP - Silver Chip Interactive | 256 | 64 | 2 |
| AS400739US | COM-NOC - City of Mishawaka | 256 | — | 1 |
| AS35619US | MHS-331-35619 - Amergis Healthcare Staffing, Inc. | 256 | — | 1 |
| AS6129US | XAXIS-AS1 - mPlatform LLC | 256 | — | 1 |
| AS401915US | GSDRE2ASN - Garfield School District No. RE-2 | 256 | — | 1 |
| AS22358US | VERDUGO-FIRE-COMM-CENTER-1 - Verdugo Fire Communications Center | 256 | — | 1 |
| AS46236US | GUTHRIE-HEALTHCARE-SYSTEMS - Guthrie Healthcare System | 256 | — | 1 |
| AS399208US | OVA-BASE-BLDG - SL Green Realty Corp | 256 | — | 1 |
| AS394093US | HS-ASN - Hallmark Sweet, INC | 256 | — | 1 |
| AS397434US | CSBS-HQ - Conference of State Bank Supervisors, Inc. | 256 | — | 1 |
| AS30659US | OCFL-COMPTROLLER - Orange County Comptroller | 256 | — | 1 |
| AS399232US | SETON-HOME - Seton Home Study School | 256 | — | 1 |
| AS54019US | ASN-WEIS - Weis Markets, Inc | 256 | — | 1 |
| AS54269US | PROVIDENTCU - Provident Credit Union | 256 | — | 1 |
| AS56773US | mox Mox Networks, LLC | 256 | — | 1 |
| AS399685US | HN-ASN-01 - Herring Networks, Inc. | 256 | 1 | 2 |
| AS397702US | SSSS - 1776 Solutions, LLC | 256 | 65.5K | 3 |
| AS395814US | WABASHVALLEYPOWERASSOC - Wabash Valley Power Association Inc. | 256 | — | 1 |
| AS397684US | CLOUD-TECHNOLOGIES-INC - Cloud Technologies, Inc | 256 | — | 1 |
| AS27622US | RSA-AL - Retirement Systems of Alabama | 256 | — | 1 |
| AS29697US | BEEKS-AS - BeeksFX VPS USA Inc. | 256 | — | 1 |
| AS26172US | CREDIT-INDUSTRIEL-ET-COMMERCIAL - Credit Industriel Et Commercial | 256 | — | 1 |
| AS21626US | CLEARSKYNETWORK - clearskynetwork | 256 | — | 1 |
| AS32594US | AUGUSTINE-GAMING-MANAGEMENT-CORP - AUGUSTINE GAMING MANAGEMENT CORP. | 256 | — | 1 |
| AS394537US | DOW-CREDIT-UNION-01 - Dow Credit Union | 256 | — | 1 |