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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 | 24,749 |
| 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.
32,226 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 | 4,282 |
| — |
| — |
| 0 |
| AS10797US | MICH-COM - MICH.COM, INC. | — | — | 0 |
| AS10840US | CAHWNET - California Department of Technology | — | — | 0 |
| AS10855US | AUTO-BY-TEL - AUTO BY TEL | — | — | 0 |
| AS10860US | TOWERRECORDS-AS - MTS Inc | — | — | 0 |
| AS10891US | UTSWEB - Universal Tax Systems Inc | — | — | 0 |
| AS10933US | ATXNET-AS - Windstream Communications LLC | — | — | 0 |
| AS11010US | INVERO - Invero S. de R.L. de C.V. | — | — | 0 |
| AS11028US | BERKELEY-SETI-RESEARCH-CENTER - SETIATHOME | — | — | 0 |
| AS11130US | TC3NET-AS - The Computer Care Company Inc. | — | — | 0 |
| AS11162US | LN-CHILDRENSHOSPITAL-ASN - Los Nettos | — | — | 0 |
| AS11236US | FUSEMAIL - MailAnyone.net | — | — | 0 |
| AS11502US | NETTUNER-AS - NetTuner Corp. dba Webmasters.com | — | — | 0 |
| AS11526US | COGENT-11526 - Cogent Communications, LLC | — | — | 0 |
| AS11545US | AQNT-AS - aQuantive Inc. | — | — | 0 |
| AS11558US | TIU11-ORG - TUSCARORA INTERMEDIATE UNIT | — | — | 0 |
| AS11646US | KIT-AS - Kansas Independent Telecommunications | — | — | 0 |
| AS11669US | MOVE-SITES - Move Sales, Inc. | — | — | 0 |
| AS11723US | ASN-11723 - Nasdaq, Inc. | — | — | 0 |
| AS11725US | MUELLER-NET - Mueller Industries, Inc. | — | — | 0 |
| AS11920US | UNK-AS - The Board of Regents of the University of Nebraska | — | — | 0 |
| AS12029US | AS12029 - TenSpire Network | — | — | 0 |
| AS12072US | AHL-ASN - Aquiline Holdings, LLC | — | — | 0 |
| AS12138US | TAX-AIR - Tax AirFreight, Inc. | — | — | 0 |
| AS12207US | COGENT-12207 - Cogent Communications, LLC | — | — | 0 |
| AS12281US | ASD - ALORICA INC | — | — | 0 |
| AS12283US | FTS-64 - First Technology Services | — | — | 0 |
| AS13408US | WPTI-TELECOM - WPTI TELECOM LLC | — | — | 0 |
| AS13463US | JPMORGAN-AS13463 - JPMorgan Chase & Co. | — | — | 0 |
| AS13529US | GOHOST-IPADMIN - NetStrategies | — | — | 0 |
| AS13553US | CBSI-2 - CBS Interactive Inc. | — | — | 0 |
| AS13668US | VRIS-AS-BLOCK - Verizon Business | — | — | 0 |
| AS13681US | MIDWEST-IX - Midwest Internet Exchange LLC | — | — | 0 |
| AS13719US | INCOMM-NET6 - InComm | — | — | 0 |
| AS13735US | CONNECTA-MI6 - SatellitePhoneStore.com | — | — | 0 |
| AS13780US | MILEHIGHWALRUS-NETWORK - Milehighwalrus Network | — | — | 0 |
| AS13790US | INTERNAP-BLK3 - Unitas Global | — | — | 0 |
| AS13873US | KAPLAN - Kaplan Educational Centers | — | — | 0 |
| AS13921US | HMC - Hecla Mining Company | — | — | 0 |
| AS13922US | GREENQUBE - GreenQube | — | — | 0 |
| AS13946US | AS13946 - Broadcast Educational Media Commission | — | — | 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 |