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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 |
| 8.7K |
| — |
| 16 |
| AS19356US | TOUA-NOC - Tohono O'Odham Utility Authority | 8.7K | — | 4 |
| AS206US | CSC-IGN-AMER-AS206 - DXC US Latin America Corporation | 8.7K | — | 4 |
| AS20392US | WESTPANET - WestPAnet, Inc. | 8.7K | — | 2 |
| AS10708US | SELECTNET-AS - SelectNet Internet Services | 8.7K | — | 19 |
| AS394700US | THE-SCHOOL-DISTRICT-OF-PALM-BEACH-COUNTY - The School District of Palm Beach County | 8.7K | — | 17 |
| AS17099US | CALLIS-COMMUNICATIONS-AS - Callis Communications | 8.7K | — | 8 |
| AS518US | DNIC-AS-00518 - United States Department of Defense (DoD) | 8.7K | 2 | 17 |
| AS27597US | SITESERVER-IDC1 - Siteserver, Inc. | 8.7K | 65.5K | 4 |
| AS30436US | ELITE-BROADBAND - Elite Broadband LLC | 8.7K | — | 24 |
| AS18690US | MEDIDATA - Medidata Solutions, Inc | 8.7K | — | 3 |
| AS19383US | WEBEL-1 - Web Elite LLC | 8.7K | — | 24 |
| AS3755US | NYSERNET3-AS - NYSERNet | 8.7K | 2 | 6 |
| AS32665US | SOCALGAS-1 - Southern California Gas Company | 8.7K | — | 2 |
| AS30676US | TUB - Tullahoma Utilities Authority | 8.7K | 65.5K | 11 |
| AS13483US | INFOR-AS13483 - Infor (US), LLC | 8.7K | — | 9 |
| AS400180US | FMTC-STANTON - The Farmers Mutual Telephone Company of Stanton, Iowa | 8.7K | — | 19 |
| AS397162US | SUMOFIBER-IDAHO - Sumofiber | 8.7K | 32.8K | 18 |
| AS402215US | DEVOLOGY - Devology Tech LLC | 8.7K | — | 34 |
| AS19999US | UNIONASN - Union College | 8.7K | — | 4 |
| AS394384US | EDGE-BROADBAND - Edge Broadband | 8.7K | 69.6K | 14 |
| AS22346US | NRZ-NETWORK - Newroads Telecom | 8.7K | 65.5K | 4 |
| AS54646US | HARDYNET - Hardy Telecommunications | 8.7K | 65.5K | 8 |
| AS46790US | PHS-WA - Providence Health & Services | 8.7K | — | 24 |
| AS54996US | SCRIPPSHEALTH - Scripps Health | 8.7K | — | 3 |
| AS46491US | MEC-ASN - Metropolitan Educational Council | 8.7K | — | 11 |
| AS54478US | FNF-CLOUD1 - Fidelity National Financial Inc. | 8.7K | — | 24 |
| AS19261US | ASPSTATION - aspStation, Inc. | 8.7K | — | 3 |
| AS23188US | WIN - Wabash Independent Networks | 8.7K | 65.5K | 7 |
| AS14861US | ISC-GROUP - ISC Group | 8.7K | — | 6 |
| AS394762US | DSUSD-AS1 - Desert Sands Unified School District | 8.7K | — | 3 |
| AS5716US | CYBERCOM - Cyber Access Internet Communications, Inc. | 8.7K | — | 8 |
| AS5090US | ARKANSASTECH - ARKANSAS TECH UNIVERSITY | 8.7K | 1 | 4 |
| AS393684US | INFINITYLINK - Infinity Network Services, Inc. | 8.4K | 135.2K | 23 |
| AS13392US | R18ESC - Region 18 Education Service Center | 8.4K | — | 2 |
| AS16477US | NCL-203-16477 - Nielsen Consumer LLC | 8.4K | — | 21 |
| AS395563US | EDISON-CARRIER-SOLUTIONS - Southern California Edison | 8.4K | — | 2 |
| AS25831US | PREFIX NETWORK - Prefix Network LLC | 8.4K | — | 6 |
| AS46160US | SKYTAP-TUK - Kyndryl | 8.4K | — | 17 |
| AS11430US | BESTNAP - Austin Bestline | 8.4K | 65.5K | 4 |
| AS18838US | DCSSGA - DeKalb County School District | 8.4K | — | 3 |
| AS47869US | CL-1763-47869 - ColoHouse LLC | 8.4K | 1K | 16 |
| AS394473US | BTC-ONLINE - Brantley Telephone Company, Inc. | 8.4K | — | 7 |
| AS27555US | BV-PUBLIC-ASN - Black & Veatch International Company | 8.4K | — | 16 |
| AS47095US | MURRAY-ELECTRIC-SYSTEM - Murray Electric System | 8.4K | — | 15 |
| AS30154US | DAVEN - Davenport University | 8.4K | 1 | 3 |
| AS33691US | HOU1-ENT-DC-VA1 - NEW CCH, LLC | 8.4K | 257 | 6 |