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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 | 23,999 |
| 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.
32,154 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 231 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 437 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.5M | 3,882 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 1,990 |
| AS701US | UUNET - Verizon Business | 43.6M | 995 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,318 |
| 4.1K |
| — |
| 1 |
| AS394826US | OREGONTECH - Oregon Tech | 4.1K | — | 1 |
| AS21854US | DP-IS - Digital Passage, Inc. | 4.1K | 65.5K | 17 |
| AS32554US | MCIU - Montgomery County Intermediate Unit | 4.1K | 65.5K | 2 |
| AS46860US | DASIANET - Dasia.Net, LLC | 4.1K | — | 9 |
| AS16679US | BSD403-ASN-111 - BETHEL SCHOOL DISTRICT 403 | 4.1K | — | 1 |
| AS11023US | SYSSRC - System Source | 4.1K | — | 1 |
| AS32024US | BLUEFI-AS-1 - Blueficity | 4.1K | 65.5K | 13 |
| AS53513US | SKSRT - SPRUCE KNOB SENECA ROCKS TELEPHONE, INC. | 4.1K | — | 2 |
| AS23254US | CARR-INTERNET - CARR COMMUNICATIONS, INC. | 4.1K | — | 1 |
| AS40389US | BLUERIVER-ASN-0 - Blueriver Networking Services, Inc. | 4.1K | 65.5K | 2 |
| AS62825US | WTC-40-AS - Walnut Communications | 4.1K | — | 16 |
| AS26327US | HIGHLANDS-CABLE - Highlands Cable Group | 4.1K | — | 4 |
| AS14497US | BITREFINERY-1 - Bit Refinery, LLC | 4.1K | — | 13 |
| AS12273US | TRUELINK - Transunion Interactive, Inc. | 4.1K | — | 12 |
| AS54539US | CISD - Calhoun ISD | 4.1K | — | 3 |
| AS13953US | SVCC-EDU - Sauk Valley Community College | 4.1K | 16 | 2 |
| AS395098US | RFIH-NET1 - Retail Finance International Holdings, Inc. | 4.1K | — | 10 |
| AS395733US | SFMTA - San Francisco Municipal Transportation Agency | 4.1K | — | 1 |
| AS54098US | LIONLINK-NETWORKS - LIONLINK NETWORKS | 4.1K | 65.5K | 2 |
| AS19939US | BCTELCO - Beaver Creek Telephone Company | 4.1K | — | 1 |
| AS36063US | ITSPEED-0001 - Arrownet, Inc. | 4.1K | 65.5K | 2 |
| AS14317US | ACCNETWORKS - Advanced Computer Connections, Inc. | 4.1K | — | 1 |
| AS40772US | VELOCITER-WIRELESS-INC - ezWave Inc. | 4.1K | — | 16 |
| AS18556US | SCIF - State Compensation Insurance Fund | 4.1K | — | 2 |
| AS11109US | SAISD-1 - State of Alabama, Office of Information Technology | 4.1K | — | 16 |
| AS10653US | MVANET - USAI.NET | 4.1K | — | 1 |
| AS397608US | HCAS-4 - Hanson Communications, Inc. | 4.1K | — | 6 |
| AS23420US | AS-DAVENPRO - Davenpro Enterprises LLC | 4.1K | 65.5K | 7 |
| AS23548US | THEDACARE - Thedacare | 4.1K | — | 1 |
| AS22251US | REMC - Regional Educational Media Center 1 (REMC1) | 4.1K | — | 10 |
| AS25979US | COMDC-WI - CITY OF MADISON | 4.1K | 1 | 2 |
| AS55043US | MARCO-TECHNOLOGIES-DC - Marco Technologies LLC | 4.1K | — | 15 |
| AS36316US | SHOREHAMTEL - GoNetSpeed | 4.1K | 4.1K | 4 |
| AS397549US | TAMU-SA - Texas A&M University San Antonio | 4.1K | — | 1 |
| AS26165US | CHSCC - Chattanooga State Community College | 4.1K | — | 2 |
| AS402628US | ACUBENET - IDC | 4.1K | 316 | 26 |
| AS401288US | CL-BROADBAND - C&L Broadband Connect, LLC | 4.1K | 65.5K | 2 |
| AS14245US | SEGAOADC - Sega of America, Inc. | 4.1K | — | 1 |
| AS46598US | SOUTHERN-OHIO-COMMUNICATION-SERVICES - Southern Ohio Communication Services | 4.1K | — | 3 |
| AS394976US | ABACUS - Abacus Data Systems, Inc. | 4.1K | 2 | 7 |
| AS13793US | T3VOICENET - T3 VoiceNet, LLC. | 4.1K | — | 1 |
| AS30177US | FIBER-SOUTH-01 - Point Broadband Fiber Holding, LLC | 4.1K | 65.5K | 4 |
| AS395368US | NTT-GLOBAL-DATA-CENTERS-AMERICA-INC - NTT Global Data Centers Americas, INC. | 4.1K | — | 1 |
| AS25943US | COUNTRY-CONNECTIONS-LLC - Point Broadband Fiber Holding, LLC | 4.1K | — | 9 |
| AS33452US | RW - RIDGE WIRELESS | 4.1K | — | 7 |
| AS16706US | ORTHONE - NORTHEAST ORTHOPAEDIC CLINIC, LLP | 4.1K | — | 16 |