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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. | 210.9M | 21,026 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 113.7M | 639 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,220 |
| 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 | 368 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 48M | 3,585 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.7M | 1,933 |
| AS701US | UUNET - Verizon Business | 43.6M | 1,000 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,534 |
| 4.1K |
| — |
| 12 |
| AS25963US | TCCD-1 - Tarrant County College District | 4.1K | — | 1 |
| AS7254US | NGTEL - NGTelecom, Inc. | 4.1K | — | 4 |
| AS11109US | SAISD-1 - State of Alabama, Office of Information Technology | 4.1K | — | 16 |
| AS38047US | TAIWAN-TELECOM - Taiwan Telecom | 4.1K | 65.8K | 29 |
| AS399833US | ROCKYRIDGE-NET - Rocky Ridge Wireless | 4.1K | — | 6 |
| AS27020US | PRIMET-INET-AS - Prime Therapeutics LLC | 4.1K | — | 8 |
| AS27403US | APA-CTY - Apache County Board of Supervisors | 4.1K | — | 1 |
| AS54985US | AS-PIN - PIN LLC | 4.1K | — | 1 |
| AS30035US | HEAVENWIRE - Mobilcomm, Inc | 4.1K | — | 16 |
| AS16679US | BSD403-ASN-111 - BETHEL SCHOOL DISTRICT 403 | 4.1K | — | 1 |
| AS53399US | CLARKSTOWN-CENTRAL-SCHOOL-DISTRICT - Clarkstown Central School District | 4.1K | — | 1 |
| AS16706US | ORTHONE - NORTHEAST ORTHOPAEDIC CLINIC, LLP | 4.1K | — | 16 |
| AS36041US | ASN-SCAD-ATLANTA - Savannah College of Art and Design | 4.1K | — | 1 |
| AS19967US | JSJ-CORP - JSJ Corporation | 4.1K | — | 1 |
| AS10653US | MVANET - USAI.NET | 4.1K | — | 1 |
| AS26481US | REBEL-HOSTING - Rebel Hosting | 4.1K | — | 16 |
| AS26859US | TELENET-INTL - Fortis Communications, Inc. | 4.1K | — | 1 |
| AS21854US | DP-IS - Digital Passage, Inc. | 4.1K | 65.5K | 17 |
| AS26123US | ITU-NET-1 - Independence Telecommunications Utility | 4.1K | 65.5K | 6 |
| AS53520US | WILOGIC-INC-AS0 - WiLogic, Inc. | 4.1K | — | 6 |
| AS26165US | CHSCC - Chattanooga State Community College | 4.1K | — | 2 |
| AS6994US | FASTMETRICS - Fastmetrics | 4.1K | — | 1 |
| AS46452US | AS1 - Texas CellNet, Inc. | 4.1K | — | 16 |
| AS26891US | NEWCLOUD - Otava, LLC | 4.1K | 1 | 17 |
| AS401377US | PUMASERVNET - PUMA SERVERS LLC | 4.1K | — | 1 |
| AS16822US | VISER - Viser | 4.1K | — | 1 |
| AS23339US | MU-ASN - Marymount University | 4.1K | — | 6 |
| AS23027US | BOINGO - Boingo Wireless, Inc. | 4.1K | — | 1 |
| AS13788US | USCOURTS - US Courts | 4.1K | — | 13 |
| AS32554US | MCIU - Montgomery County Intermediate Unit | 4.1K | 65.5K | 2 |
| AS19472US | CAROLLO-ENGINEERS - Carollo Engineers | 4.1K | — | 6 |
| AS22068US | TJC-62001 - Tyler Junior College | 4.1K | — | 2 |
| AS398475US | DRILLINGINFO-VIRGINIA - Drilling Info Inc. | 4.1K | — | 3 |
| AS54979US | ZEECON - Zeecon Wireless Internet L.L.C. | 4.1K | — | 1 |
| AS18913US | AIR-PIPE-AS - WIRED OR WIRELESS INC. | 4.1K | — | 2 |
| AS54548US | PROFITBRICKS-USA - IONOS Cloud Inc. | 4.1K | 513 | 9 |
| AS46241US | WASHTENAW-ISD-ASN - Washtenaw ISD | 4.1K | — | 3 |
| AS46988US | MICA-AS - Maryland Institute College of Art | 4.1K | — | 1 |
| AS27183US | NSD417 - Northshore School District | 4.1K | — | 1 |
| AS26674US | ARGON-TECHNOLOGIES-INCORPORATED - Argon Technologies, Inc. | 4.1K | — | 1 |
| AS54098US | LIONLINK-NETWORKS - LIONLINK NETWORKS | 4.1K | 65.5K | 2 |
| AS397608US | HCAS-4 - Hanson Communications, Inc. | 4.1K | — | 6 |
| AS396334US | ORU-ASN - Oral Roberts University | 4.1K | — | 9 |
| AS25915US | WSWHE-NET - WASHINGTON SARATOGA WARREN HAMILTON & ESSEX BOCES | 4.1K | 16 | 2 |
| AS33638US | SCOTTS-AS - CITY OF SCOTTSBURG | 4.1K | — | 2 |
| AS19624US | SERVERROOM - Data Room, Inc | 4.1K | 16.4K | 22 |