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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 | 3,138 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 210.9M | 20,988 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 113.7M | 639 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,222 |
| 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.
31,994 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 229 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 368 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 48M | 3,578 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.7M | 1,934 |
| AS701US | UUNET - Verizon Business | 43.6M | 1,000 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.3M | 4,544 |
| MENLO-SECURITY - MENLO SECURITY, INC. |
| 23.6K |
| — |
| 92 |
| AS6134US | XNNET - XNNET LLC | 23.6K | 69.6K | 104 |
| AS64249US | ENDOFFICE - Charles River Operation | 23.3K | 69.9K | 63 |
| AS17018US | QTS-SAC - Quality Technology Services, LLC | 23.3K | 65.5K | 14 |
| AS13720US | SONYONLINE - Daybreak Game Company LLC | 23.3K | — | 43 |
| AS1766US | ASN-EXXONMOBIL-US - Exxon Mobil Corporation | 23.3K | — | 27 |
| AS30165US | DALTON-UTILITIES-OPTILINK - Dalton Utilities | 23.3K | 65.5K | 21 |
| AS19605US | 3RC - 3 Rivers Telephone Cooperative, Inc. | 23.3K | — | 29 |
| AS26667US | RUBICONPROJECT - Magnite, Inc. | 23.3K | 8 | 19 |
| AS10355US | DSCGA - Digital Service Consultants | 23.3K | — | 15 |
| AS40266US | SQN-NET - SpeedyQuick Networks Inc | 23.3K | — | 31 |
| AS40230US | COLUMBUS-TEL-KS - Columbus Telephone Company | 23.3K | 65.5K | 55 |
| AS25625US | IPAI - IP Access International | 23.3K | — | 31 |
| AS18964US | AHSSSCI - Adventist Health System Sunbelt Healthcare Corporation | 23.3K | — | 13 |
| AS395172US | NTWLS - Nex-Tech Wireless, LLC | 23.3K | 65.5K | 11 |
| AS40410US | USFRCS-BGP - FRIT | 23.3K | — | 61 |
| AS6062US | NETPLEX - NETPLEX | 23K | 65.5K | 12 |
| AS23028US | TEAM-CYMRU - Team Cymru Inc. | 23K | 65.6K | 44 |
| AS40861US | PARAD-40-ASN - Paradise Networks LLC | 23K | — | 90 |
| AS17403US | HSIS-AS - HyperSurf Internet Services, Inc. | 23K | — | 5 |
| AS32281US | CCT-LLC - CCT LLC | 23K | 270.3K | 54 |
| AS395658US | GOBEC-BARRY-ELECTRIC - Barry Electric Cooperative | 23K | 98.3K | 24 |
| AS396026US | DEASIL-NETWORKS - Deasil Networks | 22.8K | 768 | 36 |
| AS1421US | WANSEC - WANSecurity, Inc. | 22.8K | 12.3K | 42 |
| AS10397US | MOMENTUM - Momentum Telecom, Inc. | 22.8K | 9 | 57 |
| AS27216US | AIR-ADVANTAGE-ASN - Air Advantage LLC | 22.8K | 65.5K | 80 |
| AS14174US | NCKCN - North Central Kansas Community Network Co. | 22.8K | 65.5K | 12 |
| AS25844US | SKADDEN1 - Skadden, Arps, Slate, Meagher & Flom LLP | 22.8K | — | 11 |
| AS16677US | AZO - AutoZone Inc | 22.8K | — | 15 |
| AS16559US | REALCONNECT-01 - RealConnect, Inc | 22.5K | 65.5K | 22 |
| AS23481US | HCTC-LINK1 - Hill Country Telephone Cooperative, Inc. | 22.5K | — | 25 |
| AS53848US | MRTC-WLBTKY - Mountain Telephone | 22.5K | 65.5K | 9 |
| AS17133US | T-FIBER - T-Mobile USA, Inc. | 22.5K | — | 22 |
| AS63399US | DIALPAD - Dialpad, Inc. | 22.5K | 527.6K | 49 |
| AS21981US | GOEASTON - Easton Utilities Commission | 22.5K | 65.5K | 8 |
| AS3933US | OPEN - Oregon Public Education Network | 22.3K | — | 9 |
| AS7086US | MISSISSIPPI-STATE-GOVERNMENT - Mississippi, Department of Information Technology Services (ITS) | 22.3K | — | 9 |
| AS27229US | WEBHOST-ASN1 - Webhosting.Net, Inc. | 22.3K | — | 23 |
| AS21921US | NEW-HOPE-TELEPHONE-COOPERATIVE - New Hope Telephone Cooperative | 22.3K | 65.5K | 24 |
| AS4549US | ESPN-AS - ESPN, Inc. | 22.3K | — | 37 |
| AS400909US | TRAVCHIS - TRAVCHIS, LLC | 22.3K | — | 52 |
| AS33302US | D102-COS-1 - Data102 | 22K | 65.5K | 12 |
| AS16724US | WOW-DATACENTER-NET - WideOpenWest Finance LLC | 22K | 65.5K | 43 |
| AS15054US | OMEGA-TX - Northeast Texas Broadband, LLC | 22K | 65.5K | 7 |
| AS7361US | DATAZONE - DataZone Networks LLC | 22K | — | 55 |
| AS7762US | OPENTEXT - Micro Focus | 22K | — | 7 |
| AS32415US | C3-LLC - C3 | 22K | — | 54 |