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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 | 24,346 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 644 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.6M | 1,303 |
| 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.
32,168 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 233 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 437 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.5M | 3,885 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 1,996 |
| AS701US | UUNET - Verizon Business | 43.6M | 994 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,357 |
| 768 |
| 524.3K |
| 4 |
| AS13412US | VULCAN-LLC - Vulcan LLC | 768 | — | 3 |
| AS12287US | AS-AFILIAS-CTRL1 - Afilias, Inc. | 768 | 1 | 4 |
| AS53713US | NATIONAL-CEMENT - National Cement Company | 768 | — | 3 |
| AS40812US | XTC-WIRELESS - XTC Limited Company | 768 | — | 3 |
| AS16756US | ABCV16756 - ABC Virtual Communications, Inc. | 768 | — | 3 |
| AS395333US | LACKAWANNA-COLLEGE - Lackawanna College | 768 | — | 3 |
| AS393600US | RELIANCE-01 - Reliance Standard Life Insurance Company | 768 | — | 3 |
| AS46755US | COLUMBIA-COLLEGE-MISSOURI - Columbia College | 768 | — | 3 |
| AS31776US | BUSINESS-WIRE-NY - Business Wire | 768 | — | 2 |
| AS32863US | TRINSICTECH - Trinsic Technologies, Inc. | 768 | — | 3 |
| AS16714US | TENNANT-COMPANY - Tennant | 768 | — | 2 |
| AS394344US | NETACTUATE - NetActuate, Inc | 768 | 4.1K | 4 |
| AS400626US | ACSC1006 - Automobile Club of Southern California | 768 | — | 3 |
| AS46109US | ARDENT-NETWORKS - Ardent Wireless, LLC | 768 | 4 | 7 |
| AS398170US | WPAFN - WPA Fiber Network LLC | 768 | 65.5K | 3 |
| AS16830US | EIS-EQUINIX-AS - EIS Group, INC | 768 | — | 3 |
| AS12144US | CLOUD-GRID - Cloud Grid Networks | 768 | — | 3 |
| AS19111US | NBTY1911 - The Nature's Bounty Co. | 768 | — | 3 |
| AS26343US | SPT-ASN-001 - Global Payments Inc. | 768 | — | 3 |
| AS33283US | MCSERVICES - MC Services | 768 | — | 2 |
| AS36406US | US-FIRE-INSURANCE-COMPANY - United States Fire Insurance Company | 768 | — | 3 |
| AS26447US | SHUTTERFLY - Shutterfly, LLC | 768 | — | 3 |
| AS40827US | HUDSON-RIVER-TRADING-LLC - Hudson River Trading LLC | 768 | — | 3 |
| AS395291US | SC-CORE - Snapchat, Inc | 768 | — | 3 |
| AS14776US | YAHOO - Yahoo Holdings Inc. | 768 | 1 | 4 |
| AS15062US | MERIDIAN-BUSINESS-CENTERS - Meridian Business Centers | 768 | — | 2 |
| AS63130US | NATIONAL-LOUIS-UNIVERSITY - National-Louis University | 768 | — | 3 |
| AS23249US | AVECTRA - Avectra | 768 | — | 2 |
| AS395315US | TCMC-BGP-01 - Tri-City Medical Center | 768 | — | 2 |
| AS54838US | NWINC-01 - Networks Inc | 768 | — | 3 |
| AS12227US | WBNS-AS-1 - WBNS TV, Inc. | 768 | — | 3 |
| AS401305US | NIL - NIL Investment Link LLC | 768 | — | 3 |
| AS22475US | MVP - MVP Health Plan Inc. | 768 | — | 2 |
| AS22907US | AS22907 - Conduent Business Services, LLC | 768 | — | 3 |
| AS394993US | SCVTA - Santa Clara Valley Transportation Authority | 768 | — | 3 |
| AS11307US | 6750REI - Recreational Equipment Inc. | 768 | — | 3 |
| AS401707US | ARPHOST - ARPHost, LLC | 768 | 3 | 6 |
| AS32988US | ANALOG DEVICES - Analog Devices, Inc. | 768 | — | 3 |
| AS32291US | ANNEARUNDELMEDICALCENTER - ANNE ARUNDEL MEDICAL CENTER | 768 | — | 3 |
| AS27575US | PROVAK - Providence Hospital | 768 | — | 3 |
| AS393847US | AAMC-AS1 - Association of American Medical Colleges | 768 | — | 3 |
| AS19319US | CCN-DMZ - Bonneville Power Administration | 768 | — | 3 |
| AS32086US | PSHP-AS - PACIFICSOURCE HEALTH PLANS | 768 | — | 3 |
| AS394419US | AKI-CHIN - Ak-Chin Indian Community | 768 | — | 3 |
| AS397676US | VW-QFN-ASN - Qualfon Data Services Group, LLC | 768 | — | 3 |
| AS4367US | SECSTATE-CA-GOV - California Secretary of State | 768 | — | 3 |