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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) | 227.7M | 3,133 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 219M | 23,666 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 645 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,361 |
| 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.
32,363 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 234 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 439 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.8M | 3,911 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 45M | 2,046 |
| AS701US | UUNET - Verizon Business | 43.6M | 996 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.8M | 4,491 |
| 4.1K |
| — |
| 9 |
| AS19472US | CAROLLO-ENGINEERS - Carollo Engineers | 4.1K | — | 6 |
| AS12214US | RAPIDDSL--WIRELESS - RapidDSL & Wireless | 4.1K | — | 16 |
| AS21854US | DP-IS - Digital Passage, Inc. | 4.1K | 65.5K | 17 |
| AS40252US | CLEVELAND-MUNICIPAL-SCHOOL-DISTRICT - Cleveland Municipal School District | 4.1K | — | 9 |
| AS36063US | ITSPEED-0001 - Arrownet, Inc. | 4.1K | 65.5K | 2 |
| AS396334US | ORU-ASN - Oral Roberts University | 4.1K | — | 9 |
| AS54702US | QUICKMEG - QuickMeg Inc | 4.1K | — | 10 |
| AS17322US | NAVIGY-HOLDINGS - Navigy Holdings, Inc. | 4.1K | — | 1 |
| AS54923US | NETCOM-PNSDC - Network Communications | 4.1K | — | 1 |
| AS6685US | GRAPEVINE - Grapevine Labs LLC | 4.1K | 65.5K | 2 |
| AS18913US | AIR-PIPE-AS - WIRED OR WIRELESS INC. | 4.1K | — | 2 |
| AS27403US | APA-CTY - Apache County Board of Supervisors | 4.1K | — | 1 |
| AS394976US | ABACUS - Abacus Data Systems, Inc. | 4.1K | 2 | 7 |
| AS11425US | CWIE - CWIE, LLC | 4.1K | — | 1 |
| AS46494US | CHRISCOMCO - Christensen Communications Company | 4.1K | — | 3 |
| AS401773US | WCO-AS - Washington County, Oregon | 4.1K | — | 1 |
| AS16822US | VISER - Viser | 4.1K | — | 1 |
| AS14872US | GZSCI - GZ Scientific Inc | 4.1K | — | 16 |
| AS397608US | HCAS-4 - Hanson Communications, Inc. | 4.1K | — | 6 |
| AS54521US | THE-NATIONAL-GALLERY-OF-ART - National Gallery of Art | 4.1K | — | 1 |
| AS33045US | HGST-AS - Western Digital Corporation | 4.1K | — | 11 |
| AS33197US | DATACANOPY-SFO01 - Sidus Group, LLC | 4.1K | 65.8K | 6 |
| AS27183US | NSD417 - Northshore School District | 4.1K | — | 1 |
| AS18708US | HDR-CORP - HDR, Inc. | 4.1K | — | 6 |
| AS397824US | ALASKA-PERMANENT-FUND-CORPORATION-AS-01 - Alaska Permanent Fund Corporation, an instrumentality of the State of Alaska | 4.1K | 2 | 4 |
| AS13953US | SVCC-EDU - Sauk Valley Community College | 4.1K | 16 | 2 |
| AS399833US | ROCKYRIDGE-NET - Rocky Ridge Wireless | 4.1K | — | 6 |
| AS54816US | SPRINGTN - Spring City Cable TV, Inc | 4.1K | — | 13 |
| AS54825US | PACKET - Packet Host, Inc. | 4.1K | 4.2K | 24 |
| AS53398US | BERKA-ASN - Berkadia Commercial Mortgage LLC | 4.1K | — | 2 |
| AS18556US | SCIF - State Compensation Insurance Fund | 4.1K | — | 2 |
| AS13793US | T3VOICENET - T3 VoiceNet, LLC. | 4.1K | — | 1 |
| AS36041US | ASN-SCAD-ATLANTA - Savannah College of Art and Design | 4.1K | — | 1 |
| AS26862US | FULLNETINC - FULLNET INC | 4.1K | — | 16 |
| AS23442US | DESG-WEST - Deluxe Laboratories, Inc. | 4.1K | — | 11 |
| AS54324US | GSI-ASN - Geographic Solutions, Inc. | 4.1K | — | 3 |
| AS19939US | BCTELCO - Beaver Creek Telephone Company | 4.1K | — | 1 |
| AS396926US | CSPIRE-MISSION-01 - C Spire Fiber | 4.1K | — | 1 |
| AS11833US | AS11833-LEAPFROG-INTERACTIVE - LEAP Agency LLC | 4.1K | — | 10 |
| AS1078US | LIGHTWAVE-COMMUNICATIONS - Lightwave | 4.1K | — | 8 |
| AS11109US | SAISD-1 - State of Alabama, Office of Information Technology | 4.1K | — | 16 |
| AS20469US | TRIMETNET - Tri-County Metropolitan Transit District | 4.1K | — | 1 |
| AS53520US | WILOGIC-INC-AS0 - WiLogic, Inc. | 4.1K | — | 6 |
| AS33638US | SCOTTS-AS - CITY OF SCOTTSBURG | 4.1K | — | 2 |
| AS19624US | SERVERROOM - Data Room, Inc | 4.1K | 16.4K | 22 |
| AS23027US | BOINGO - Boingo Wireless, Inc. | 4.1K | — | 1 |