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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 | 3,134 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 219M | 23,681 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 645 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,370 |
| 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.
32,364 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 236 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 439 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.8M | 3,914 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 45M | 2,047 |
| AS701US | UUNET - Verizon Business | 43.6M | 996 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.8M | 4,503 |
| AIDC - American International Distribution Corporation |
| 256 |
| — |
| 1 |
| AS395296US | MSFA - MSFA | 256 | — | 1 |
| AS33428US | NHS-39AS - The New-York Historical Society | 256 | — | 1 |
| AS200257US | UserDepth-AS UserDepth LLC | 256 | — | 1 |
| AS398178US | TELCION-NETOPS-01 - Telcion Communications Group | 256 | — | 1 |
| AS395070US | ALLSOUTH-INTERNET - AllSouth Federal Credit Union | 256 | — | 1 |
| AS13117US | ASNXGEU Nexusguard, Inc | 256 | — | 1 |
| AS400855US | AVD-PRINCETON - Advantage Voice & Data, LLC | 256 | — | 1 |
| AS400965US | CYPRESS-FIBER-01 - Cypress Fiber | 256 | 65.5K | 2 |
| AS63135US | TABOR-COLLEGE-01 - Tabor College, Inc. | 256 | — | 1 |
| AS26902US | CEKKENT - Cekkent LLC | 256 | 256 | 2 |
| AS13858US | CPG-ASN2 - TransCanada Pipelines Limited | 256 | — | 1 |
| AS402355US | VISENTRY-NET - Visentry | 256 | — | 1 |
| AS400131US | QCRH-AS - QCR Holdings, Inc. | 256 | — | 1 |
| AS13983US | ALE-SOLUTIONS-INC - ALE Solutions Inc | 256 | — | 1 |
| AS399485US | TCW-AS-TOR - The TCW Group, Inc. | 256 | — | 1 |
| AS401328US | FASTWIRELESSLLC - Fast Wireless LLC | 256 | 1 | 2 |
| AS26708US | CCS-AS - Center for Computing Sciences | 256 | — | 1 |
| AS218880US | Turbyte Turbyte LLC | 256 | 1 | 2 |
| AS393590US | HBHGA - The Original Honey Baked Ham Company of Georgia, Inc. | 256 | — | 1 |
| AS27625US | UBNT-AS - Ubiquiti Networks, Inc. | 256 | 1 | 2 |
| AS1258US | XKL-NET-AS - XKL, LLC | 256 | — | 1 |
| AS395680US | C05-WAN - Clark Associates, Inc. | 256 | 1 | 2 |
| AS11244US | MIS-NET - Midstream Integrity Services LLC | 256 | — | 1 |
| AS26845US | CFN - Fleetcor Technologies Operating Company, LLC | 256 | — | 1 |
| AS395159US | BOULDER-COMMUNITY-HEALTH - Boulder Community Hospital | 256 | — | 1 |
| AS14844US | CITY-OF-KILLEEN-TX-01 - CITY OF KILLEEN | 256 | — | 1 |
| AS398818US | NORTH-LAUDERDALE-WIRELESS-INTERNET - North Lauderdale Water Association, Inc. | 256 | — | 1 |
| AS32761US | WASSE-NYC - Wasserstein & Co. | 256 | — | 1 |
| AS64198US | ESET-LLC - ESET LLC | 256 | — | 1 |
| AS23478US | CHAS-HEALTH - CHAS Health | 256 | — | 1 |
| AS395603US | NASSAU-COLISEUM - AEG | 256 | — | 1 |
| AS46808US | PSA-ASN-01 - Pueblo of Santa Ana | 256 | — | 1 |
| AS26032US | TRPC7 - TEST RITE PRODUCTS CORP. | 256 | — | 1 |
| AS54361US | PBCI - Poarch Band of Creek Indians | 256 | — | 1 |
| AS135424US | EAAPPL-AS-AP - Electronic Arts Inc. for KR | 256 | — | 1 |
| AS398303US | DIAMEDIC-SLC001 - Diamedic.NET | 256 | — | 1 |
| AS402317US | RP-GLOBAL - Medical | 256 | — | 1 |
| AS395287US | MSC-HQ - MSC Inc | 256 | 256 | 2 |
| AS398187US | NWTS-FERNDALE-01 - NW Technology | 256 | — | 1 |
| AS399348US | JEANCOMPUTECH-CORPORATION - JeanComputech Corporation | 256 | — | 1 |
| AS63302US | MFAB - Museum Of Fine Arts Boston | 256 | — | 1 |
| AS23490US | WESTDEVINC - West Development, INC. | 256 | — | 1 |
| AS401236US | SBI - South Bay Internet | 256 | — | 1 |
| AS33124US | STORMDADDYISP - Storm Daddy Residential Broadband LLC | 256 | — | 1 |
| AS394123US | ASBURYINTEGRATEDTECHNOLOGIES - The Asbury Group Integrated Technologies, LLC | 256 | — | 1 |
| AS400801US | BISTATEDEVELOPMENT - Bi-State Development Agency of the Missouri-Illinois Metropolitan District | 256 | — | 1 |