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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. | 211.2M | 21,174 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 113.7M | 639 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,241 |
| 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 | 373 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 49.3M | 3,656 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.7M | 1,940 |
| AS701US | UUNET - Verizon Business | 43.6M | 1,000 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,379 |
| 1.5K |
| — |
| 5 |
| AS26437US | TCH-AS - THE CLEARING HOUSE PAYMENTS COMPANY L.L.C. | 1.5K | — | 6 |
| AS26083US | NEWEDGE-ASN1 - Newedge Facilities Management, Inc. | 1.5K | — | 6 |
| AS398229US | MCLLC-RANGE-01 - Mobile Communications, LLC | 1.5K | — | 2 |
| AS31921US | MALONE-ASN - Malone University | 1.5K | 1 | 7 |
| AS14951US | VMCNET - Vulcan Materials Company | 1.5K | — | 6 |
| AS53855US | RIPPLE-01 - Ripple | 1.5K | — | 6 |
| AS13581US | SOFTWAREHOUSE - SHI International Corp. | 1.5K | 1 | 7 |
| AS36563US | TELX-DALLAS - Telx | 1.5K | 65.5K | 4 |
| AS214456US | SERVERSP-AS ServerSP LLC | 1.5K | 4 | 10 |
| AS55204US | TELESCAN - ClearPoint | 1.5K | — | 3 |
| AS22391US | BCIS-BEXAR-COUNTY-INFORMATION-SERVICES - Bexar County - Information Technology | 1.5K | — | 5 |
| AS397062US | SMG - Sun-Maid Growers of California | 1.5K | — | 6 |
| AS206331US | EHOSTINGONLINE E-Hosting Online LLC | 1.5K | — | 6 |
| AS3384US | CELT - Center for Educational Leadership and Technology | 1.5K | — | 3 |
| AS12167US | LIGHTWAVE-DALLAS - LightWave Networks | 1.5K | 3 | 7 |
| AS25931US | SDXBF-DC-1 - Sodexo, Inc. | 1.5K | — | 6 |
| AS399893US | RTC-MA-ASN-01 - Richmond Telephone Company LLC | 1.5K | 4.1K | 3 |
| AS13379US | BURBANK-SPN - Disney Worldwide Services, Inc. | 1.5K | — | 6 |
| AS40082US | APOG-COC - Apogee Telecom Inc. | 1.5K | — | 4 |
| AS21959US | RMI-NETWORK-ATLANTA - Railcar Management Inc | 1.5K | — | 3 |
| AS23865US | NETINNOVATIONLLC-AS-AP - Net Innovation LLC | 1.5K | — | 6 |
| AS393662US | SYMPLYFI-CORENET - SymplyFi | 1.5K | — | 5 |
| AS29730US | NOVOLINK - NovoLink Communications, Inc. - Houston | 1.5K | — | 5 |
| AS55082US | WINKCDN - WINK Streaming LLC | 1.5K | — | 6 |
| AS399363US | OAISD-OAWAN - Ottawa Area ISD | 1.5K | — | 5 |
| AS22909US | COMCAST-22909 - Comcast Cable Communications, LLC | 1.5K | 51 | 57 |
| AS16716US | LIVINGSTON-AS - Lake Livingston Communications Inc. | 1.5K | 65.5K | 5 |
| AS7201US | AS-NETWORKEDGE - Network Edge LLC | 1.5K | 16 | 7 |
| AS396264US | NOW - Night Owl Wireless, LLC | 1.5K | — | 6 |
| AS63183US | YTHING-NET-1 - Ything LLC | 1.5K | 1K | 8 |
| AS21882US | SMART-CITY-PHCC - SMART CITY NETWORKS, LIMITED PARTNERSHIP | 1.5K | — | 2 |
| AS17309US | AS7260 - Roosevelt University | 1.5K | — | 6 |
| AS19750US | AS-CRITEO - Criteo Corp. | 1.5K | 12 | 18 |
| AS215039US | nodesty Nodesty LLC | 1.5K | 18 | 9 |
| AS10616US | NTIS - National Oceanic and Atmospheric Administration | 1.5K | 256 | 7 |
| AS394671US | HCAS-1 - Hanson Communications, Inc. | 1.5K | — | 2 |
| AS400060US | EY-AS-DSFW - Ernst & Young LLP | 1.5K | — | 6 |
| AS5715US | ONVOY - Inteliquent, inc. | 1.5K | 65.5K | 7 |
| AS30144US | BQI - BQ Internet Corporation | 1.5K | — | 3 |
| AS398571US | CLEVELAND-COUNTY-TEL-01 - CLEVELAND COUNTY TELEPHONE CO. INC. | 1.5K | — | 2 |
| AS34437US | COVERTHART-AS-34437 - CovertHart Networks | 1.5K | 287 | 38 |
| AS19819US | BRADYCOM - Brady Communications, LLC | 1.5K | — | 6 |
| AS62611US | CEC-AS-NB-4080 - Cutting Edge Computers, INC. | 1.5K | 65.5K | 8 |
| AS15225US | PERSECO - Perseco | 1.5K | — | 6 |
| AS23415US | G5INTERNET - G5 INTERNET, LLC | 1.5K | — | 2 |
| AS399024US | MIT-366-BMK - Marin IT, Inc. | 1.5K | — | 2 |