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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. | 211.3M | 21,277 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 113.7M | 639 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,248 |
| 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 | 413 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 49.3M | 3,722 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.7M | 1,955 |
| AS701US | UUNET - Verizon Business | 43.6M | 1,000 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,298 |
| GLOBEOP-2000 - GlobeOp Financial Services |
| — |
| — |
| 0 |
| AS19665US | RAMPANT - Rampant Inc! | — | — | 0 |
| AS19672US | EVERESTBROADBAND1 - Everest BBN, Inc. | — | — | 0 |
| AS19710US | AVEXON - Avexon | — | — | 0 |
| AS19757US | AS19757 - Virpus LLC | — | — | 0 |
| AS19822US | TPAC-SD-01 - TPx Communications | — | — | 0 |
| AS19877US | TOFV-INTERNET - Town of Fuquay-Varina | — | — | 0 |
| AS19959US | KASINET - Kansas Data Inc. | — | — | 0 |
| AS20036US | DSS-INC - DSS Inc. | — | — | 0 |
| AS20077US | IPNETZONE-ASN - IPNetZone | — | — | 0 |
| AS20118US | BN-DATECENTRE - BEACON NETWORKS LLC | — | — | 0 |
| AS20147US | KLD-BMN - KLDiscovery Ontrack, LLC | — | — | 0 |
| AS20157US | AHL - American Heritage Life Insurance Company | — | — | 0 |
| AS20199US | CRITICAL-IMPACT - Critical Impact | — | — | 0 |
| AS20288US | UBARRY-NET - Urner Barry Publications, Inc. | — | — | 0 |
| AS20386US | MOVE-VAN - Move Sales, Inc. | — | — | 0 |
| AS20461US | MYPT-SCH - United Airlines | — | — | 0 |
| AS21539US | VONAGE - Vonage Holdings, Inc. | — | — | 0 |
| AS21572US | CPP-AMERICAS - CPP, Inc. | — | — | 0 |
| AS21584US | SAAGL-ASN - INDIANA AUTO AUCTION | — | — | 0 |
| AS21585US | RISE-UT-AS21585 - JAB Wireless, INC. | — | — | 0 |
| AS21696US | MURPHYTX - City of Murphy | — | — | 0 |
| AS21755US | CROWNCASTLE-AS21755 - Crown Castle Fiber LLC | — | — | 0 |
| AS21786US | SAN-MATEO - San Mateo County Office of Education | — | — | 0 |
| AS21810US | TEMPESCHOOLS - Tempe School District #3 | — | — | 0 |
| AS21825US | ICT-ASN-01 - Icarus Technologies | — | — | 0 |
| AS21905US | OREGON-HEALTH-NETWORK - Oregon Health Network, Inc. | — | — | 0 |
| AS22004US | ABOUT-COM - ABOUT, INC. | — | — | 0 |
| AS22046US | AS-PCNET-INC - Corserva, Inc. | — | — | 0 |
| AS22126US | DISTRIBION-DALLAS - Distribion Inc | — | — | 0 |
| AS22176US | PCI-ASN - PCI | — | — | 0 |
| AS22199US | MEGAPATH8-US - GTT Americas, LLC | — | — | 0 |
| AS22333US | ABE - AB E-Commerce, LLC | — | — | 0 |
| AS22375US | FIRST-357 - Corelogic Solutions, LLC | — | — | 0 |
| AS22387US | SALEM-FIVE-BANK1 - Salem Five Bank | — | — | 0 |
| AS22426US | INTRINIUM - Intrinium, Inc. | — | — | 0 |
| AS22435US | PSFT-INC - Oracle Corporation | — | — | 0 |
| AS22492US | LEADCONNECTOR - Leadconnector LLC | — | — | 0 |
| AS22521US | VGN - Verizon Business | — | — | 0 |
| AS22545US | ELAVON - ELAVON | — | — | 0 |
| AS22560US | AS22560 - MasterCard Technologies LLC | — | — | 0 |
| AS22610US | CVH-NETBLK-1 - Coventry Health Care, Inc. | — | — | 0 |
| AS22626US | ADECTRA - Adectra LLC | — | — | 0 |
| AS22680US | ALIGNTECH - Align Technology, Inc. | — | — | 0 |
| AS22759US | ASTOUND-CABLE - Wave Broadband | — | — | 0 |
| AS22771US | THE-COMMON-FUND - The Common Fund | — | — | 0 |
| AS22872US | HAPPEWARE-AZ-1 - Happ eWare, LLC. | — | — | 0 |