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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 |
| — |
| 16 |
| AS11425US | CWIE - CWIE, LLC | 4.1K | — | 1 |
| AS396334US | ORU-ASN - Oral Roberts University | 4.1K | — | 9 |
| AS46494US | CHRISCOMCO - Christensen Communications Company | 4.1K | — | 3 |
| AS33254US | OMERESA - Ohio Mid Eastern Regional Education Service Agency | 4.1K | — | 9 |
| AS31828US | SHU-AS-I2 - Seton Hall University | 4.1K | — | 5 |
| AS23548US | THEDACARE - Thedacare | 4.1K | — | 1 |
| AS401377US | PUMASERVNET - PUMA SERVERS LLC | 4.1K | — | 1 |
| AS19472US | CAROLLO-ENGINEERS - Carollo Engineers | 4.1K | — | 6 |
| AS23027US | BOINGO - Boingo Wireless, Inc. | 4.1K | — | 1 |
| AS402628US | ACUBENET - IDC | 4.1K | 316 | 26 |
| AS14690US | PEORIAUSD11 - Peoria Unified School District | 4.1K | — | 1 |
| AS15113US | AMX-LLC-AS - Harman International Industries Inc. | 4.1K | 4 | 20 |
| AS11889US | IVANET-DAL - iBasis, Inc. | 4.1K | 256 | 14 |
| AS16706US | ORTHONE - NORTHEAST ORTHOPAEDIC CLINIC, LLP | 4.1K | — | 16 |
| AS17322US | NAVIGY-HOLDINGS - Navigy Holdings, Inc. | 4.1K | — | 1 |
| AS46860US | DASIANET - Dasia.Net, LLC | 4.1K | — | 9 |
| AS14497US | BITREFINERY-1 - Bit Refinery, LLC | 4.1K | — | 13 |
| AS1078US | LIGHTWAVE-COMMUNICATIONS - Lightwave | 4.1K | — | 8 |
| AS11061US | ANTEL-NET - Antelecom, Inc. | 4.1K | — | 1 |
| AS26481US | REBEL-HOSTING - Rebel Hosting | 4.1K | — | 16 |
| AS11118US | COMTECK - ComTeck | 4.1K | — | 1 |
| AS53399US | CLARKSTOWN-CENTRAL-SCHOOL-DISTRICT - Clarkstown Central School District | 4.1K | — | 1 |
| AS30035US | HEAVENWIRE - Mobilcomm, Inc | 4.1K | — | 16 |
| AS46699US | TWRS-HOU - Towerstream | 4.1K | — | 2 |
| AS36041US | ASN-SCAD-ATLANTA - Savannah College of Art and Design | 4.1K | — | 1 |
| AS6685US | GRAPEVINE - Grapevine Labs LLC | 4.1K | 65.5K | 2 |
| AS395896US | SCC-180-ASN - Southeast Community College | 4.1K | — | 1 |
| AS201682US | LIQUID-WEB-BV Liquid Web B.V. | 4.1K | 65.5K | 5 |
| AS23251US | BRIDGESTONE-AMERICAS - Bridgestone Americas, Inc. | 4.1K | — | 16 |
| AS27183US | NSD417 - Northshore School District | 4.1K | — | 1 |
| AS46598US | SOUTHERN-OHIO-COMMUNICATION-SERVICES - Southern Ohio Communication Services | 4.1K | — | 3 |
| AS23339US | MU-ASN - Marymount University | 4.1K | — | 6 |
| AS19856US | BRAZOSPORT-COLLEGE - Brazosport College | 4.1K | — | 1 |
| AS55102US | NRG-NS-2 - NRG Energy, Inc. | 4.1K | — | 7 |
| AS32102US | MASS-CONVENTION-CENTER-AUTHORITY - Massachusetts Convention Center Authority | 4.1K | — | 1 |
| AS399928US | PAULDINGPUTNAM - PAULDING PUTNAM ELECTRIC TRUST, INC. | 4.1K | 69.6K | 3 |
| AS31869US | LL-BEAN - LL Bean | 4.1K | — | 6 |
| AS54923US | NETCOM-PNSDC - Network Communications | 4.1K | — | 1 |
| AS395643US | CORONA-NORCOUSD - Corona-Norco Unified School District | 4.1K | — | 16 |
| AS401288US | CL-BROADBAND - C&L Broadband Connect, LLC | 4.1K | 65.5K | 2 |
| AS11833US | AS11833-LEAPFROG-INTERACTIVE - LEAP Agency LLC | 4.1K | — | 10 |
| AS30268US | CHASKANET - CITY OF CHASKA CHASKANET | 4.1K | — | 1 |
| AS22804US | REDHELM-CLOUD - Ideal Integrations, LLC | 4.1K | 256 | 9 |
| AS399461US | HOSTSNAP-NETWORK - HostSNAP LLC | 4.1K | — | 6 |
| AS46986US | RITTCT020 - Ritter Communications | 4.1K | — | 1 |
| AS54098US | LIONLINK-NETWORKS - LIONLINK NETWORKS | 4.1K | 65.5K | 2 |