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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 | 3,134 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 218.2M | 25,525 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 642 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.7M | 1,309 |
| 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.
32,245 autonomous systems registered to United States. Click an AS for detail.
| 73M |
| 232 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 437 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.6M | 3,898 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 2,000 |
| AS701US | UUNET - Verizon Business | 43.6M | 991 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,357 |
| 768 |
| — |
| 3 |
| AS3944US | PARTAN-LAB - Partan & Partan | 768 | — | 3 |
| AS55263US | UNITEDLEX - UnitedLex Corporation | 768 | — | 3 |
| AS16639US | IRONBOW-ASN - Iron Bow Technologies, LLC | 768 | — | 3 |
| AS54153US | LACMTA-ASN - Los Angeles County Metropolitan Transportation Authority | 768 | — | 3 |
| AS32850US | CLARITEV-VA - Claritev Corporation | 768 | — | 3 |
| AS26160US | LCEC-BGPNET-YHWH - LCEC | 768 | — | 3 |
| AS397535US | WNMU-ASN - Western New Mexico University | 768 | — | 3 |
| AS400155US | MHTELE-01 - Manchester-Hartland Telephone Company | 768 | — | 2 |
| AS17243US | BYTENODE-AS - Byte Node LLC | 768 | 1 | 4 |
| AS395823US | DOOF - doof.net | 768 | 4.1K | 6 |
| AS46385US | PNAP-SE3 - PhoenixNAP LLC | 768 | 257 | 5 |
| AS36852US | SERVIT - SERVIT, INC. | 768 | — | 2 |
| AS19214US | CENTAURI-COMMUNICATIONS-COM - Centauri Communications | 768 | 65.5K | 3 |
| AS36134US | POOLCORP - Pool Corporation | 768 | — | 3 |
| AS395046US | SEXING-TECHNOLOGIES - Sexing Technologies | 768 | — | 3 |
| AS400608US | PETDW-MERGECO-01 - Bhp Billiton Petroleum (deepwater) Inc. | 768 | — | 3 |
| AS395975US | DENTONCOAS-1 - Denton County, Texas | 768 | — | 3 |
| AS25907US | BRINKER-INT - BRINKER INTERNATIONAL INC | 768 | — | 3 |
| AS399997US | ARCONIC-CORP - Arconic | 768 | — | 3 |
| AS11804US | AMVDM - All Mobile Video Inc | 768 | — | 3 |
| AS399503US | AMERICOM - Dice Carrier Services LLC | 768 | 4.1K | 37 |
| AS7996US | VSCO - Victoria's Secret | 768 | — | 3 |
| AS397562US | UCOMTEL-01 - UComtel Inc | 768 | — | 3 |
| AS62424US | MARRIOTT-EU STARWOOD HOTELS & RESORTS WORLDWIDE, LLC | 768 | 2 | 5 |
| AS11470US | RSNA-ASN - Radiological Society of North America | 768 | — | 3 |
| AS393251US | FRANCIS-MARION-UNIVERSITY - Francis Marion University | 768 | — | 2 |
| AS394930US | CUSTBANK-AS - CUSTOMERS BANK | 768 | — | 3 |
| AS30677US | VALLEY-HEALTH-SYSTEM - Valley Health System | 768 | — | 3 |
| AS32374US | NUCLEARFALLOUT-LAX - Nuclearfallout Enterprises, Inc. | 768 | 8.2K | 5 |
| AS36119US | OSISOFTLLC - OSIsoft, LLC | 768 | — | 2 |
| AS401781US | HOSTPEPPER - HostPepper, LLC | 768 | — | 3 |
| AS40776US | TAONET - TaoNet | 768 | 15 | 18 |
| AS394046US | JWKFO - JELD WEN | 768 | — | 3 |
| AS773US | PARSONS-PGS-2 - Parsons Corporation | 768 | — | 3 |
| AS27253US | ASN1 - AMERICAN RESIDENTIAL SERVICES L.L.C. | 768 | — | 3 |
| AS33160US | OLDREPUBLICTITLEAS - OLD REPUBLIC NATIONAL TITLE INSURANCE CO. | 768 | — | 3 |
| AS397782US | HY-VEE-ASN-02 - Hy-Vee, Inc | 768 | — | 2 |
| AS30620US | CO-DATACENTER - APPLIED SYSTEMS, INC | 768 | — | 3 |
| AS218859US | ALLSYSNET IT HELP LCC | 768 | 65.5K | 4 |
| AS398026US | INDIANAPOLIS-AIRPORT-AUTHORITY - Indianapolis Airport Authority | 768 | — | 3 |
| AS14903US | PILOT-CATASTROPHE - Pilot Catastrophe Services, Inc. | 768 | — | 2 |
| AS55251US | TAXHAWK-AS - TaxHawk, Inc. | 768 | — | 3 |
| AS395290US | PORTOFPORTLAND - Port of Portland | 768 | — | 3 |
| AS40892US | EFTSOURCE2008 - EFT Source, Inc. | 768 | — | 3 |
| AS400980US | DANDBFIBER - D and B Broadband, LLC | 768 | — | 3 |
| AS10979US | ICWGROUP - INSURANCE COMPANY OF THE WEST | 768 | — | 3 |