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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. | 218M | 24,389 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 644 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.6M | 1,302 |
| 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.
32,169 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 | 3,885 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 1,996 |
| AS701US | UUNET - Verizon Business | 43.6M | 994 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,341 |
| 1K |
| — |
| 4 |
| AS53293US | BGP-SAS-01 - Samsung Austin Semiconductor LLC | 1K | — | 4 |
| AS13597US | CMSI - Creative Mobile Solutions, Inc. | 1K | — | 3 |
| AS33467US | SJRMC-NJ - St. Joseph's Medical Center | 1K | — | 1 |
| AS33601US | OUTREACHBROADBAND - Outreach Broadband, Inc. | 1K | — | 3 |
| AS46314US | STONEWAIN-SYSTEMS - Stonewain Systems, Inc. | 1K | — | 4 |
| AS21835US | SCARSDALE-SECURITY-SYSTEMS - Scarsdale Security Systems, Inc. | 1K | 65.5K | 5 |
| AS62508US | GLOBAL-US - GlobalLogic Inc. | 1K | — | 3 |
| AS393969US | KALEIDESCAPE-INC - Kaleidescape, Inc. | 1K | — | 4 |
| AS401335US | AI-DUDE-RI - Minerdude LLC | 1K | — | 2 |
| AS30523US | BOK-FINANCIAL-CORPORATION - BOK Financial Corporation | 1K | — | 4 |
| AS395193US | WESTFIELD-INSURANCE - Ohio Farmer's Insurance Company | 1K | — | 3 |
| AS16619US | GTRI-RSRCH - Georgia Institute of Technology | 1K | — | 1 |
| AS394106US | BEIDEAL - BeIdeal LLC | 1K | 1 | 5 |
| AS40857US | PAECOM - IT-CNP, Inc. | 1K | 65.5K | 5 |
| AS53469US | KPBSD - Kenai Peninsula Borough School District | 1K | — | 1 |
| AS396354US | SPECTRUMVOIP-ISP-DAL - SpectrumVoIP Inc | 1K | 65.5K | 4 |
| AS396056US | EAGLE-TELEPHONE-ASN - EAGLE TELEPHONE SYSTEM INC | 1K | 4.1K | 2 |
| AS402148US | TEYVAT-CONTINENT - Teyvat Continent LLC | 1K | — | 1 |
| AS63362US | SMULE - Smule Inc. | 1K | — | 3 |
| AS63303US | TOUCHTONE-NEWARK - TouchTone Communications | 1K | — | 4 |
| AS26337US | OIS1 - Oso Grande IP Services, LLC | 1K | — | 4 |
| AS63109US | FCEMC-NETWORKS - Four County Electric Membership Corporation | 1K | — | 1 |
| AS5978US | DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) | 1K | — | 3 |
| AS22106US | STA-DRT - Samsung SDS America, Inc. | 1K | — | 4 |
| AS19787US | FEIM-LLC - First Eagle Investment Management LLC | 1K | — | 3 |
| AS25765US | CQGNET-NEWYORK - CQG, Inc. | 1K | — | 4 |
| AS33378US | ASN1 - EASTERN BANK | 1K | — | 4 |
| AS399239US | HILLTOWN-NETWORKS - Hilltown Networks | 1K | — | 4 |
| AS395562US | FIREBALLWIRELESS - Fireball Wireless LLC | 1K | — | 4 |
| AS399388US | DCTEXAS - DCTexas Internet | 1K | — | 1 |
| AS397613US | NTS - Network Technology Solutions, LLC | 1K | — | 2 |
| AS229US | MERIT-AS-6 - Merit Network Inc. | 1K | 1 | 3 |
| AS394404US | SMI-INET - Samaritan Ministries International | 1K | — | 3 |
| AS25786US | NE-WEST-11 - Newegg.com | 1K | — | 4 |
| AS202US | CENTURYLINK-LEGACY-LVLT-202 - Level 3 Parent, LLC | 1K | — | 1 |
| AS20040US | WESTERNAND-SOUTHERN-FINANCIAL-GROUP - Western & Southern Financial Group Inc. | 1K | — | 4 |
| AS395645US | COMPLUS-ASN - Communications Plus, Inc. | 1K | — | 2 |
| AS12102US | CITY-OF-PORTLAND-OR-USA - City of Portland | 1K | — | 1 |
| AS55121US | IQVOICE - InterQoS Online, Inc. | 1K | — | 1 |
| AS7291US | SBIS-BLK - AT&T Enterprises, LLC | 1K | — | 4 |
| AS395687US | SKYPULSE - SkyPulse Communications | 1K | 65.5K | 4 |
| AS400400US | CLAIR - Clair Global | 1K | 48 | 7 |
| AS36564US | SIEMENS-DISW-WIV-B-TAH - Siemens Industry Software Inc. | 1K | 1 | 2 |
| AS257US | DNIC-AS-00257 - Navy Network Information Center (NNIC) | 960 | 1 | 7 |
| AS26411US | PRERENDER-NET - Saas.group LLC | 896 | 35 | 9 |
| AS393447US | AS-VIRTUALSTACKS - Virtual Stacks LLC | 864 | — | 5 |