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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. | 217.9M | 23,731 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 644 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.6M | 1,300 |
| 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.
32,144 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 232 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 437 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.5M | 3,838 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 1,995 |
| AS701US | UUNET - Verizon Business | 43.6M | 995 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,313 |
| 23.3K |
| 270.3K |
| 55 |
| AS23028US | TEAM-CYMRU - Team Cymru Inc. | 23.3K | 65.6K | 45 |
| AS64249US | ENDOFFICE - Charles River Operation | 23.3K | 69.9K | 63 |
| AS23024US | OCDE - Orange County Department of Education | 23.3K | — | 60 |
| AS12187US | MTAHQ1 - Metropolitan Transportation Authority | 23.3K | — | 14 |
| AS10355US | DSCGA - Digital Service Consultants | 23.3K | — | 15 |
| AS395172US | NTWLS - Nex-Tech Wireless, LLC | 23.3K | 65.5K | 11 |
| AS40230US | COLUMBUS-TEL-KS - Columbus Telephone Company | 23.3K | 65.5K | 55 |
| AS396006US | SPITWSPOTS-HOM - SPITwSPOTS | 23.3K | — | 43 |
| AS398191US | TRI-CO-CONNECTIONS - Tri-Co Connections | 23K | — | 16 |
| AS16677US | AZO - AutoZone Inc | 23K | — | 16 |
| AS11049US | DYN - Oracle Corporation | 23K | 28.3K | 48 |
| AS17403US | HSIS-AS - HyperSurf Internet Services, Inc. | 23K | — | 5 |
| AS30165US | DALTON-UTILITIES-OPTILINK - Dalton Utilities | 23K | 65.5K | 20 |
| AS6062US | NETPLEX - NETPLEX | 23K | 65.5K | 12 |
| AS22792US | MNET - MOUNTAINET | 23K | 65.5K | 24 |
| AS53340US | FIBERHUB - VegasNAP, LLC | 23K | 9.2K | 49 |
| AS27216US | AIR-ADVANTAGE-ASN - Air Advantage LLC | 22.8K | 65.5K | 80 |
| AS393467US | NORTHEAST-RURAL-SERVICES-DBA-BOLT-FIBER-OPTIC-SERV - BOLT Fiber Optic Services | 22.8K | — | 7 |
| AS10397US | MOMENTUM - Momentum Telecom, Inc. | 22.8K | 9 | 57 |
| AS396026US | DEASIL-NETWORKS - Deasil Networks | 22.8K | 768 | 36 |
| AS14174US | NCKCN - North Central Kansas Community Network Co. | 22.8K | 65.5K | 12 |
| AS25844US | SKADDEN1 - Skadden, Arps, Slate, Meagher & Flom LLP | 22.8K | — | 11 |
| AS63399US | DIALPAD - Dialpad, Inc. | 22.5K | 527.6K | 49 |
| AS1421US | WANSEC - WANSecurity, Inc. | 22.5K | 12.3K | 41 |
| AS53848US | MRTC-WLBTKY - Mountain Telephone | 22.5K | 65.5K | 9 |
| AS6185US | APPLE-AUSTIN - Apple Inc. | 22.5K | 50 | 99 |
| AS23481US | HCTC-LINK1 - Hill Country Telephone Cooperative, Inc. | 22.5K | — | 25 |
| AS16559US | REALCONNECT-01 - RealConnect, Inc | 22.5K | 65.5K | 22 |
| AS21743US | ANL-36 - Atlas Networks Corporation | 22.5K | 65.5K | 25 |
| AS36040US | YOUTUBE - Google LLC | 22.3K | 65.6K | 143 |
| AS3933US | OPEN - Oregon Public Education Network | 22.3K | — | 9 |
| AS32298US | CNSQ-AS32298 - Centersquare | 22.3K | 655.4K | 67 |
| AS7086US | MISSISSIPPI-STATE-GOVERNMENT - Mississippi, Department of Information Technology Services (ITS) | 22.3K | — | 9 |
| AS22952US | CHCCW - Chaparral CableVision | 22.3K | — | 43 |
| AS31972US | EMGINECONCEPT-01 - Emagine Concept, Inc. | 22.3K | — | 53 |
| AS53306US | OUTSCALE-INC - OUTSCALE INC | 22.3K | — | 7 |
| AS21921US | NEW-HOPE-TELEPHONE-COOPERATIVE - New Hope Telephone Cooperative | 22.3K | 65.5K | 24 |
| AS32415US | C3-LLC - C3 | 22K | — | 54 |
| AS16880US | AS2-TRENDMICRO-COM - TREND MICRO INCORPORATED | 22K | 3 | 17 |
| AS3580US | PLANET - Planet Networks | 22K | 65.5K | 11 |
| AS16724US | WOW-DATACENTER-NET - WideOpenWest Finance LLC | 22K | 65.5K | 43 |
| AS15054US | OMEGA-TX - Northeast Texas Broadband, LLC | 22K | 65.5K | 7 |
| AS7762US | OPENTEXT - Micro Focus | 22K | — | 7 |
| AS17133US | T-FIBER - T-Mobile USA, Inc. | 22K | — | 21 |
| AS10381US | SWCP-AS - Southwest Cyberport, Inc. | 22K | 65.5K | 11 |
| AS33302US | D102-COS-1 - Data102 | 22K | 65.5K | 12 |