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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 | 3,133 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 219M | 23,661 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 645 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,361 |
| 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.
32,363 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 236 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 439 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.8M | 3,911 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 45M | 2,046 |
| AS701US | UUNET - Verizon Business | 43.6M | 996 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.8M | 4,490 |
| 768 |
| — |
| 2 |
| AS19658US | BROWARDHEALTH-AS - North Broward Hospital District | 768 | — | 3 |
| AS36852US | SERVIT - SERVIT, INC. | 768 | — | 2 |
| AS63314US | MSFT - Microsoft Corporation | 768 | — | 2 |
| AS396145US | EXACTSCIENCES - Exact Sciences Corporation | 768 | — | 3 |
| AS3557US | ISC-AS - Internet Systems Consortium, Inc. | 768 | 3 | 4 |
| AS14058US | PCT-AS01 - PointClick Technologies, LLC | 768 | 4.1K | 3 |
| AS20408US | NTTA - North Texas Tollway Authority | 768 | — | 3 |
| AS33666US | CMCS - Comcast Cable Communications, LLC | 768 | 3 | 6 |
| AS399503US | AMERICOM - Dice Carrier Services LLC | 768 | 4.1K | 37 |
| AS33312US | FFBM-0049 - Premier Bank | 768 | — | 2 |
| AS29781US | ECPI-AS - ECPI Colleges, Inc. | 768 | — | 2 |
| AS32374US | NUCLEARFALLOUT-LAX - Nuclearfallout Enterprises, Inc. | 768 | 8.2K | 5 |
| AS402162US | BENTHOST - Benthost LLC | 768 | 256 | 4 |
| AS26086US | BESTBUY-2 - Best Buy Co., Inc. | 768 | — | 3 |
| AS397809US | SDC-ASHBURN-EQX - Huron Consulting Group, Inc. | 768 | — | 3 |
| AS393962US | BLC-ASN-01 - Baillie Lumber Co., L.P. | 768 | — | 3 |
| AS62787US | SNARKNET - Snark Holding Corp. | 768 | 3 | 6 |
| AS400215US | SAMBANOVA - Sambanova Systems, Inc. | 768 | — | 3 |
| AS54022US | KMTEL-NET - K & M Telephone Company, Inc | 768 | — | 2 |
| AS33636US | WOFFORD-COLLEGE - Wofford College | 768 | — | 3 |
| AS397782US | HY-VEE-ASN-02 - Hy-Vee, Inc | 768 | — | 2 |
| AS32130US | BRIGHT-HORIZONS - Bright Horizons | 768 | — | 3 |
| AS395067US | BRF - B. Riley Financial, Inc. | 768 | 1 | 4 |
| AS40177US | THE-INSTITUTES - The Institutes | 768 | — | 2 |
| AS53593US | ZCONNECT-01 - zConnect | 768 | — | 3 |
| AS399997US | ARCONIC-CORP - Arconic | 768 | — | 3 |
| AS23472US | SONICWALL-BGP - SonicWALL, Inc. | 768 | — | 3 |
| AS63397US | WILLETT - Willett Advisors LLC | 768 | — | 3 |
| AS17145US | TEAJAX - THE ENERGY AUTHORITY | 768 | — | 2 |
| AS54334US | SWIFTNODE-LLC - Swiftnode LLC | 768 | 3 | 6 |
| AS2562US | TI-US-INTL - Texas Instruments Incorporated | 768 | — | 3 |
| AS30260US | NOBEL-129-30260 - NobelBiz, Inc. | 768 | — | 2 |
| AS23019US | BGP1-BOH - BANK OF HAWAII | 768 | — | 3 |
| AS197569US | BASED-ON-WHAT-LLC BASED ON WHAT LLC | 768 | 11 | 14 |
| AS53343US | SCN - sc Network | 768 | 1.1K | 8 |
| AS36506US | WA-ASN - Woodward Academy | 768 | — | 2 |
| AS31853US | EMS-AS - Express Messenger Systems, Inc. | 768 | — | 3 |
| AS16993US | ASN-CFI - Cumberland Farms, Inc. | 768 | — | 3 |
| AS1401US | DBI-CMH1 - DSW Information Technology LLC. | 768 | — | 2 |
| AS18628US | NYMEX - NEW YORK MERCANTILE EXCHANGE | 768 | — | 3 |
| AS33642US | NLETS - Nlets | 768 | — | 3 |
| AS218859US | ALLSYSNET IT HELP LCC | 768 | 65.5K | 4 |
| AS54617US | MGHPCC-AS - Massachusetts Green High Performance Computing Center, Inc | 768 | 1 | 4 |
| AS397398US | BREWSTER-ASN-01 - Brewster Academy | 768 | — | 2 |
| AS53840US | AS-CCI1 - CENTRAL COAST INTERNET | 768 | — | 3 |
| AS27253US | ASN1 - AMERICAN RESIDENTIAL SERVICES L.L.C. | 768 | — | 3 |