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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. | 217.9M | 23,731 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 644 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.6M | 1,300 |
| 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.
32,144 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 232 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 437 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.5M | 3,838 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 1,995 |
| AS701US | UUNET - Verizon Business | 43.6M | 995 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,313 |
| 32.8K |
| — |
| 5 |
| AS11067US | PTSINET - Panhandle Telecommunications Systems, INC. | 32.8K | 65.5K | 22 |
| AS19869US | AECNET - Ovintiv | 32.8K | — | 2 |
| AS63014US | MPEA-MCCORMICK-PLACE - McCormick Place | 32.8K | — | 1 |
| AS396128US | MHC-NET - Mount Holyoke College | 32.8K | — | 1 |
| AS23065US | SBCEO - Santa Barbara County Education Office | 32.8K | — | 1 |
| AS393257US | LAWREN-1 - Lawrence University | 32.8K | — | 1 |
| AS31877US | ACCELECOM-GA - Accelecom | 32.8K | 131.1K | 35 |
| AS13979US | ATT-IPFR - AT&T Enterprises, LLC | 32.8K | — | 2 |
| AS22978US | GSU - Governors State University | 32.8K | — | 1 |
| AS22935US | WAYNE-BOCES - Wayne Finger-Lakes BOCES | 32.8K | — | 3 |
| AS1568US | DNIC-ASBLK-01550-01601 - United States Department of Defense (DoD) | 32.8K | — | 1 |
| AS40586US | UNM-HEALTH-SCIENCES - University of New Mexico Health Sciences Center | 32.8K | — | 2 |
| AS213US | DNIC-AS-00213 - Headquarters, USAISC | 32.8K | 1 | 2 |
| AS26258US | BASF-CORP - BASF Corporation | 32.8K | 4.1K | 2 |
| AS26557US | CARLET-NET - Carleton College | 32.8K | — | 4 |
| AS14550US | MIDDLEBURY-COLLEGE - Middlebury College | 32.8K | — | 1 |
| AS32733US | UD-RES-AS - University of Dayton | 32.8K | — | 1 |
| AS46892US | WINNE-IPV4-1 - Winnebago Cooperative Telecom Association | 32.8K | — | 60 |
| AS7250US | SURRY-TELEPHONE-MEMB-CORP - Surry Telephone Membership Corporation | 32.8K | 65.5K | 6 |
| AS22854US | CATAWBA-COLLEGE - Catawba College | 32.8K | — | 2 |
| AS6203US | SCIPIO-TECH-6203 - Peace Communications LLC | 32.8K | — | 25 |
| AS18497US | UTSI-AS - The University of Tennessee Space Institute | 32.8K | — | 1 |
| AS2041US | STNORBERTCOLLEGE - St. Norbert College | 32.8K | — | 2 |
| AS397342US | PAUSD-EXT - Palo Alto Unified School District | 32.8K | — | 2 |
| AS400692US | BASF-128 - BASF Corporation | 32.8K | — | 1 |
| AS3410US | CORNELLCOLLEGE - Cornell College | 32.8K | — | 1 |
| AS11847US | OTT - GoNetSpeed | 32.8K | 73.7K | 28 |
| AS46930US | ASN-DPSD - Denver Public Schools | 32.8K | — | 3 |
| AS30193US | LAUSD-AS - Los Angeles Unified School District | 32.8K | — | 5 |
| AS1772US | DNIC-AS-01772 - Navy Network Information Center (NNIC) | 32.8K | — | 1 |
| AS39999US | POLK-COUNTY-PUBLIC-SCHOOLS - Polk County Public Schools | 32.8K | — | 1 |
| AS19045US | DIRECTCOM - Direct Communications Cedar Valley, LLC | 32.8K | 65.5K | 28 |
| AS22489US | DATABANK-CASTLEACCESS - Castle Access Inc | 32.5K | 65.5K | 37 |
| AS46309US | TONAQUINT-DC - ValorC3 Data Centers | 32.5K | 65.5K | 11 |
| AS53264US | SBAEDGE-603 - SBA Edge, LLC | 32.5K | 65.5K | 22 |
| AS21777US | MASSIVE-NETWORKS-21777 - Massive Networks, Inc. | 32.3K | 67.1K | 70 |
| AS11704US | VTCI - Valley Telephone Cooperative, Inc. | 32K | — | 6 |
| AS22667US | VISTA - Vista Broadband Networks, Inc. | 32K | 65.5K | 18 |
| AS11766US | MERIPLEX-1-AS - Meriplex Communications, Ltd. | 32K | — | 23 |
| AS21889US | RAPIDSYSTEMS - Rapid Systems Corporation | 32K | 73.8K | 75 |
| AS400268US | SWIFTCURRENT-CONNECT - Pierce Pepin Cooperative Services | 31.7K | 65.5K | 26 |
| AS26271US | CMSINTERNET - CMSInter.net LLC | 31.7K | 20.5K | 15 |
| AS10674US | GRUCOM - Gainesville Regional Utilities | 31.5K | 65.5K | 9 |
| AS27288US | DPCHICO-1 - Digital Path | 31.5K | 65.5K | 11 |
| AS6428US | CDM - CDM | 31.5K | 65.5K | 95 |
| AS53271US | PHENIXCITYCABLE - Phenix Cable | 31.5K | — | 10 |