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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 | 20,988 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 113.7M | 639 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,222 |
| 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 | 3,578 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.7M | 1,934 |
| AS701US | UUNET - Verizon Business | 43.6M | 1,000 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.3M | 4,544 |
| WCCL-AS - West Carolina Communications, LLC |
| 33K |
| — |
| 129 |
| AS12282US | GMA - Selectronics Corp. | 33K | 131.1K | 7 |
| AS36012US | HUNTER-COMM - HUNTER COMMUNICATIONS | 33K | 131.1K | 15 |
| AS26923US | OPLIN - Ohio Public Library Information Network (OPLIN) | 33K | — | 2 |
| AS29984US | WILLAMETTE - Willamette University | 33K | — | 2 |
| AS19510US | HUM-19510 - HUMANA | 33K | — | 59 |
| AS11847US | OTT - GoNetSpeed | 33K | 73.7K | 27 |
| AS30193US | LAUSD-AS - Los Angeles Unified School District | 32.8K | — | 5 |
| AS22978US | GSU - Governors State University | 32.8K | — | 1 |
| AS32093US | TACCNET - University of Texas at Austin | 32.8K | 256 | 2 |
| AS8035US | WORLDNET5-10 - AT&T WorldNet | 32.8K | — | 2 |
| AS32733US | UD-RES-AS - University of Dayton | 32.8K | — | 1 |
| AS30237US | CHANEYSYS - Chaney Systems, Inc. | 32.8K | — | 1 |
| AS22854US | CATAWBA-COLLEGE - Catawba College | 32.8K | — | 2 |
| AS6203US | SCIPIO-TECH-6203 - Peace Communications LLC | 32.8K | — | 25 |
| AS1568US | DNIC-ASBLK-01550-01601 - United States Department of Defense (DoD) | 32.8K | — | 1 |
| AS7250US | SURRY-TELEPHONE-MEMB-CORP - Surry Telephone Membership Corporation | 32.8K | 65.5K | 6 |
| AS1772US | DNIC-AS-01772 - Navy Network Information Center (NNIC) | 32.8K | — | 1 |
| AS26557US | CARLET-NET - Carleton College | 32.8K | — | 4 |
| AS26472US | CHIBARDUN-TEL - Mosaic Telecom | 32.8K | — | 4 |
| AS14550US | MIDDLEBURY-COLLEGE - Middlebury College | 32.8K | — | 1 |
| AS22935US | WAYNE-BOCES - Wayne Finger-Lakes BOCES | 32.8K | — | 3 |
| AS393257US | LAWREN-1 - Lawrence University | 32.8K | — | 1 |
| AS26258US | BASF-CORP - BASF Corporation | 32.8K | 4.1K | 2 |
| AS3410US | CORNELLCOLLEGE - Cornell College | 32.8K | — | 1 |
| AS10674US | GRUCOM - Gainesville Regional Utilities | 32.8K | 65.5K | 11 |
| AS397879US | LUMINATE-01 - Luminate Fiber LLC | 32.8K | — | 5 |
| AS11067US | PTSINET - Panhandle Telecommunications Systems, INC. | 32.8K | 65.5K | 22 |
| AS14297US | ACI-WORLDWIDE - ACI Worldwide, Inc. | 32.8K | — | 43 |
| AS19869US | AECNET - Ovintiv | 32.8K | — | 2 |
| AS19045US | DIRECTCOM - Direct Communications Cedar Valley, LLC | 32.8K | 65.5K | 28 |
| AS213US | DNIC-AS-00213 - Headquarters, USAISC | 32.8K | 1 | 2 |
| AS46930US | ASN-DPSD - Denver Public Schools | 32.8K | — | 3 |
| AS2041US | STNORBERTCOLLEGE - St. Norbert College | 32.8K | — | 2 |
| AS23065US | SBCEO - Santa Barbara County Education Office | 32.8K | — | 1 |
| AS13446US | AS-NETZERO - Netzero,INC. | 32.8K | — | 23 |
| AS63014US | MPEA-MCCORMICK-PLACE - McCormick Place | 32.8K | — | 1 |
| AS46892US | WINNE-IPV4-1 - Winnebago Cooperative Telecom Association | 32.8K | — | 60 |
| AS18497US | UTSI-AS - The University of Tennessee Space Institute | 32.8K | — | 1 |
| AS40586US | UNM-HEALTH-SCIENCES - University of New Mexico Health Sciences Center | 32.8K | — | 2 |
| AS396128US | MHC-NET - Mount Holyoke College | 32.8K | — | 1 |
| AS27323US | SERVERSTADIUM - Wowrack.com | 32.8K | 514 | 93 |
| AS397342US | PAUSD-EXT - Palo Alto Unified School District | 32.8K | — | 2 |
| AS400692US | BASF-128 - BASF Corporation | 32.8K | — | 1 |
| AS39999US | POLK-COUNTY-PUBLIC-SCHOOLS - Polk County Public Schools | 32.8K | — | 1 |
| AS7342US | VERISIGN-AS - VeriSign Infrastructure & Operations | 32.5K | 126 | 253 |
| AS46309US | TONAQUINT-DC - ValorC3 Data Centers | 32.5K | 65.5K | 11 |