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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 |
| 256 |
| — |
| 1 |
| AS16764US | THE-RAINE-GROUP-LLC - The Raine Group LLC | 256 | — | 1 |
| AS398336US | MODERN-WOODMEN-OF-AMERICA - Modern Woodmen of America | 256 | — | 1 |
| AS393992US | TOWNOFBROOKHAVEN - Town of Brookhaven | 256 | — | 1 |
| AS14427US | NTT-GLOBAL-DATA-CENTERS-AMERICA-INC - NTT Global Data Centers Americas, INC. | 256 | 4.1K | 3 |
| AS32648US | MNAT - Morris, Nichols, Arsht and Tunnel | 256 | — | 1 |
| AS397773US | ENSCO-INC - ENSCO, Inc. | 256 | — | 1 |
| AS18470US | GL-GFASN-01 - GraceWorks, LLC | 256 | 17 | 3 |
| AS55266US | FRMC01 - Firelands Regional Medical Center | 256 | — | 1 |
| AS11304US | BMH-ASN - Prisma Health | 256 | — | 1 |
| AS396895US | UMA-COLO - UMA Education, Inc. | 256 | — | 1 |
| AS395960US | BUCK-INSTITUTE - Buck Institute for Research on Aging | 256 | — | 1 |
| AS62936US | TDEM-HQ-01 - Texas Division of Emergency Management | 256 | — | 1 |
| AS63180US | MTESC - STS Tire & Auto Centers | 256 | — | 1 |
| AS395016US | WAKE-WIRELESS - WAKE WIRELESS | 256 | 65.5K | 2 |
| AS30555US | VSCP01 - VariSpace Coppell, LLC | 256 | — | 1 |
| AS21903US | ARNHEM-01 - Arnhem Networks LLC | 256 | 19 | 8 |
| AS18908US | TECHNOLOGY-AND-BUSINESS-SOLUTIONS - Technology & Business Solutions | 256 | — | 1 |
| AS393748US | LBMCAS01 - LBMC | 256 | — | 1 |
| AS19601US | CADIA - Cadian Capital Management, LP | 256 | — | 1 |
| AS31948US | HQ - Santa Ana Star Casino Hotel | 256 | — | 1 |
| AS23174US | ARKEMAINC - Arkema Inc. | 256 | — | 1 |
| AS399393US | OM-LOZ-AS - Lozier Corporation | 256 | — | 1 |
| AS11819US | NF-SMITH-ASSOCIATES - Smith & Associates | 256 | — | 1 |
| AS22760US | ECNMEDIA - Entertainment Communications Network, Inc. | 256 | — | 1 |
| AS399262US | WESTGATE-DATA-CENTER - Westgate Computers Data Center, LLC | 256 | — | 1 |
| AS33115US | RU-NET - Rulogic Inc. | 256 | — | 1 |
| AS16901US | MUTUAL - Mutual of Enumclaw Insurance Company | 256 | — | 1 |
| AS395627US | CITY-OF-MONTGOMERY-AL - City of Montgomery | 256 | — | 1 |
| AS397508US | NJTPA - North Jersey Transportation Planning Authority, Inc. | 256 | — | 1 |
| AS32076US | PXDNET - PIONEER NATURAL RESOURCES USA | 256 | — | 1 |
| AS14305US | AS14305 - Accuray Incorporated | 256 | — | 1 |
| AS401343US | DUTCHESS-COUNTY-NY-AS - County Of Dutchess, NY | 256 | — | 1 |
| AS397059US | CNSC-PBI - Polar Bears International | 256 | — | 1 |
| AS397660US | LOCALITY-NETWORKS-01 - Locality Networks inc | 256 | — | 1 |
| AS27003US | AMERICAN-BANKERS-ASSOCIATION - American Bankers Association | 256 | — | 1 |
| AS32383US | ROME-NET - ROME Sverdrup | 256 | — | 1 |
| AS40862US | ASN-EFX - ELECTRONIC FUNDS TRANSFER CORP. | 256 | — | 1 |
| AS14885US | RAND-GRAPHICS - Rand Graphics, Inc. | 256 | — | 1 |
| AS401760US | NETKIND - Netkind LLC | 256 | 1 | 2 |
| AS399813US | LAER-AS-MEL1 - UnitedLayer, LLC | 256 | 1 | 2 |
| AS18473US | EC-BACKUP - Spring View Hospital | 256 | — | 1 |
| AS402826US | VIRTERION - Virterion | 256 | — | 1 |
| AS15082US | OMEG-LCN - OMEGAI | 256 | 275 | 6 |
| AS394096US | CAPEREGIONALHEALTHSYSTEM - Cape Regional Medical Center, Inc. | 256 | — | 1 |
| AS26720US | SCHAEFFERS-INVESTMENT-RESEARCH - Schaeffer's Investment Research | 256 | — | 1 |
| AS12286US | SOUTHTECH - South Tech LLC | 256 | 256 | 2 |