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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 | 3,133 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 218M | 23,961 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 644 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.6M | 1,299 |
| 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.
32,159 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 233 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 437 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.5M | 3,885 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 1,998 |
| AS701US | UUNET - Verizon Business | 43.6M | 993 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,341 |
| 1.5K |
| — |
| 5 |
| AS26234US | VERIF-MSO-PC - VeriFone Inc. | 1.5K | — | 5 |
| AS207223US | GLOBALCON Global Connections Network LLC | 1.5K | — | 6 |
| AS399788US | QUADSTATE-NET - Quad State Internet LLC | 1.5K | 65.6K | 7 |
| AS36544US | BWINPARTY-US-01 - BWIN.PARTY ENTERTAINMENT (NJ), LLC | 1.5K | — | 6 |
| AS26669US | HEADLAND-COMMUNICATIONS - Headland Communications | 1.5K | — | 6 |
| AS17103US | JRC-NETWORK-SERVICES - Jensen Research Corporation | 1.5K | 16 | 4 |
| AS32114US | NETWAVE - NETWAVE BROADBAND INC | 1.5K | 65.5K | 4 |
| AS54914US | AVERYDENNISON-AS - Avery Dennison Corporation | 1.5K | — | 3 |
| AS15063US | PWEH-ASN - Pratt and Whitney | 1.5K | — | 4 |
| AS398091US | ZX4 - zx4.com | 1.5K | — | 3 |
| AS20187US | PASSPORTHEALTH - Passport Health Communications, Inc. | 1.5K | — | 6 |
| AS40358US | TFCU-BLK-1 - Tinker Credit Union, Inc. | 1.5K | — | 4 |
| AS18725US | PVH-INTERNET1 - PVH Corp. | 1.5K | — | 6 |
| AS32358US | VENTURACOUNTY - County of Ventura | 1.5K | — | 6 |
| AS20437US | AS20437 - Nationwide Mutual Insurance Company | 1.5K | — | 4 |
| AS33058US | PEGASYSTEMS - Pegasystems Inc. | 1.5K | 1 | 7 |
| AS63370US | GSOC-63370 - Georgia System Operations, Corporation | 1.5K | — | 6 |
| AS40608US | HCTNEBRASKA - HERSHEY COOPERATIVE TELEPHONE CO | 1.5K | — | 2 |
| AS396162US | ANICO-3030 - American National Insurance Company | 1.5K | — | 6 |
| AS62533US | AIMS-VTP-US - Ascendum-IMS, LLC | 1.5K | — | 5 |
| AS19023US | TCSL-38-19023 - Terminix | 1.5K | — | 6 |
| AS47072US | SAINT-FRANCIS-HOSPITAL-AND-MEDICAL-CENTER - Saint Francis Hospital and Medical Center | 1.5K | — | 3 |
| AS394548US | GIGSTREEM-BOS - GiGstreem | 1.5K | — | 6 |
| AS14006US | RAFFERTYCAPITALMARKETS - RAFFERTY CAPITAL MARKETS | 1.5K | — | 3 |
| AS19535US | AS19535 - JetBlue Airways Corporation | 1.5K | — | 3 |
| AS19806US | ASNBLK-VTLA2 - NTT Global Networks Incorporated | 1.5K | — | 6 |
| AS20220US | INDIAN-WELLS - Indian Wells Valley ISP | 1.5K | 4.1K | 4 |
| AS30140US | BXP-HQ - BOSTON PROPERTIES LIMITED PARTNERSHIP | 1.5K | — | 5 |
| AS10493US | GCN-AS - Grand Central Networks Inc. | 1.5K | — | 6 |
| AS63343US | LINEAR1 - Linear 1 Technologies, LLC | 1.5K | 65.5K | 5 |
| AS394563US | ATSG-REDICLOUD - XTIUM, INC. | 1.5K | — | 6 |
| AS939US | USA-2022 - NovoServe LLC | 1.5K | 65.5K | 3 |
| AS11821US | SMARTBURST - SmartBurst LLC | 1.5K | — | 3 |
| AS6337US | HIWAAY - HIWAAY INFORMATION SERVICES, INC. | 1.5K | — | 2 |
| AS7358US | DNB-GLOBAL - The Dun & Bradstreet Corporation | 1.5K | — | 6 |
| AS63450US | ETHERWEBNET - Ether Web Network, Inc. | 1.5K | — | 3 |
| AS22009US | IDM - INTERNET DATA MANAGEMENT, INC. | 1.5K | — | 3 |
| AS11169US | ARQUENZO-KCMO-01 - Arquenzo LLC | 1.5K | 4.1K | 5 |
| AS54697US | EVERBANK-NA - EverBank, N.A. | 1.5K | — | 6 |
| AS10859US | GDIT-CSRA-01 - General Dynamics Information Technology, Inc. | 1.5K | — | 6 |
| AS40513US | EDGE-TECHNOLOGY-GROUP - Edge Technology Group, LLC | 1.5K | — | 6 |
| AS394265US | BOX-CORP - Box.com | 1.5K | 1 | 7 |
| AS17040US | SEATTLE-TIMES - The Seattle Times | 1.5K | — | 6 |
| AS394072US | ABILENE-ISD - Abilene Independent School District | 1.5K | — | 3 |
| AS15111US | HERMANMILLER - MillerKnoll, Inc. | 1.5K | — | 3 |
| AS36815US | INTERNETFX-NETWORK - Internet FX | 1.5K | 768 | 8 |