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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 | 24,512 |
| 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.
32,235 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 | 4,281 |
| 22.5K |
| 65.5K |
| 9 |
| AS1421US | WANSEC - WANSecurity, Inc. | 22.5K | 12.3K | 41 |
| AS63399US | DIALPAD - Dialpad, Inc. | 22.5K | 527.6K | 49 |
| AS62651US | NETPROTECT-DP - Strong Technology, LLC. | 22.8K | 14.6K | 128 |
| AS4549US | ESPN-AS - ESPN, Inc. | 22.8K | — | 39 |
| AS214036US | ULTAHOST-AS Ultahost, Inc. | 22.8K | 1 | 90 |
| AS14174US | NCKCN - North Central Kansas Community Network Co. | 22.8K | 65.5K | 12 |
| AS64200US | VIVIDHOSTING - VIVID-HOSTING LLC | 22.8K | — | 56 |
| AS25844US | SKADDEN1 - Skadden, Arps, Slate, Meagher & Flom LLP | 22.8K | — | 11 |
| AS27216US | AIR-ADVANTAGE-ASN - Air Advantage LLC | 22.8K | 65.5K | 80 |
| AS394684US | AS-GOLD - GOLD DATA USA INC | 22.8K | 131.1K | 31 |
| AS10397US | MOMENTUM - Momentum Telecom, Inc. | 22.8K | 9 | 57 |
| AS393467US | NORTHEAST-RURAL-SERVICES-DBA-BOLT-FIBER-OPTIC-SERV - BOLT Fiber Optic Services | 22.8K | — | 7 |
| AS30165US | DALTON-UTILITIES-OPTILINK - Dalton Utilities | 23K | 65.5K | 20 |
| AS6062US | NETPLEX - NETPLEX | 23K | 65.5K | 12 |
| AS22792US | MNET - MOUNTAINET | 23K | 65.5K | 24 |
| AS16677US | AZO - AutoZone Inc | 23K | — | 16 |
| AS17403US | HSIS-AS - HyperSurf Internet Services, Inc. | 23K | — | 5 |
| AS53340US | FIBERHUB - VegasNAP, LLC | 23K | 9.2K | 49 |
| AS26381US | HSBC-COM - HSBC Technology & Services (USA) Inc | 23K | — | 73 |
| AS398191US | TRI-CO-CONNECTIONS - Tri-Co Connections | 23K | — | 16 |
| AS21743US | ANL-36 - Atlas Networks Corporation | 23K | 65.5K | 26 |
| AS13720US | SONYONLINE - Daybreak Game Company LLC | 23K | — | 42 |
| AS11049US | DYN - Oracle Corporation | 23K | 28.3K | 48 |
| AS10355US | DSCGA - Digital Service Consultants | 23.3K | — | 15 |
| AS19605US | 3RC - 3 Rivers Telephone Cooperative, Inc. | 23.3K | — | 29 |
| AS27047US | DNIC-ASBLK-27032-27159 - United States Department of Defense (DoD) | 23.3K | — | 57 |
| AS17018US | QTS-SAC - Quality Technology Services, LLC | 23.3K | 65.5K | 14 |
| AS26667US | RUBICONPROJECT - Magnite, Inc. | 23.3K | 7 | 18 |
| AS395172US | NTWLS - Nex-Tech Wireless, LLC | 23.3K | 65.5K | 11 |
| AS64249US | ENDOFFICE - Charles River Operation | 23.3K | 69.9K | 63 |
| AS402236US | PATRIOT-BROADBAND - Patriot Broadband LLC | 23.3K | — | 91 |
| AS23028US | TEAM-CYMRU - Team Cymru Inc. | 23.3K | 65.6K | 44 |
| AS40266US | SQN-NET - SpeedyQuick Networks Inc | 23.3K | — | 31 |
| AS32281US | CCT-LLC - CCT LLC | 23.3K | 270.3K | 55 |
| AS12187US | MTAHQ1 - Metropolitan Transportation Authority | 23.3K | — | 14 |
| AS40230US | COLUMBUS-TEL-KS - Columbus Telephone Company | 23.3K | 65.5K | 55 |
| AS1766US | ASN-EXXONMOBIL-US - Exxon Mobil Corporation | 23.3K | — | 27 |
| AS62654US | MENLO-SECURITY - MENLO SECURITY, INC. | 23.6K | — | 92 |
| AS44US | S1-DOMAIN - Lawrence Livermore National Laboratory | 23.6K | — | 6 |
| AS46636US | NATCOWEB - NatCoWeb Corp. | 23.6K | 65.5K | 22 |
| AS397050US | VELOCITY-01 - The Butler Rural Electric Cooperative Assn., Inc. | 23.6K | — | 38 |
| AS18964US | AHSSSCI - Adventist Health System Sunbelt Healthcare Corporation | 23.6K | — | 14 |
| AS16502US | CITY-OF-PHOENIX - City of Phoenix | 23.6K | — | 34 |
| AS25660US | CTC - Fidium | 23.6K | 65.5K | 23 |
| AS395111US | KVCNET-2009 - KVCHOSTING.COM LLC | 23.6K | — | 65 |
| AS11062US | MCC-MTCO - Metro Communications Company | 23.6K | — | 7 |