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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. | 218.1M | 24,656 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 644 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.6M | 1,306 |
| 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.
32,202 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 | 3,891 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 2,002 |
| AS701US | UUNET - Verizon Business | 43.6M | 993 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,357 |
| CITY-OF-JOHNSON-CITY - City of Johnson City |
| 256 |
| — |
| 1 |
| AS401670US | ANDO-CE - Care Everywhere | 256 | — | 1 |
| AS53652US | PMDC - Providence Management and Development Company Incorporated | 256 | — | 1 |
| AS46771US | AVI-HQ - AVI FOODSYSTEMS, INC. | 256 | 256 | 2 |
| AS40680US | PROTOCOL - Protocol Labs | 256 | 1 | 2 |
| AS32126US | SFBCIC-AS - Southern Farm Bureau Casualty Insurance Company | 256 | — | 1 |
| AS397287US | AUTOCRIB-53 - AutoCrib, Inc. | 256 | — | 1 |
| AS399434US | SFCC-EDU - Santa Fe Community College | 256 | — | 1 |
| AS397061US | HRL-MLB-01 - HRL Laboratories, LLC | 256 | — | 1 |
| AS36500US | REDI-US - Refinitiv US LLC | 256 | — | 1 |
| AS32046US | SULLCROM - SULLCROM | 256 | — | 1 |
| AS46828US | MILESK-AS1 - SILVER STAR BRANDS, INC. | 256 | — | 1 |
| AS35973US | CCWRD-AS - Clark County Water Reclamation District | 256 | — | 1 |
| AS400467US | IRONBOWLAB-ASN - Iron Bow Technologies, LLC | 256 | — | 1 |
| AS54426US | TOSA - Texas Organ Sharing Alliance | 256 | — | 1 |
| AS395900US | CAMBRIACOMPANYLLC - Cambria Company LLC | 256 | — | 1 |
| AS393652US | CSB-YORK - Cornerstone Bank | 256 | — | 1 |
| AS46515US | TOONTOWN - Toons of the World Foundation | 256 | 2 | 2 |
| AS1829US | LANL-NV - Los Alamos National Laboratory | 256 | 1 | 2 |
| AS29792US | NETAPP-AS-2 - NetApp, Inc. | 256 | 1 | 2 |
| AS63289US | ASN-MBCI - WFMZ-TV | 256 | — | 1 |
| AS11285US | KW-CORPORATION - K W Corporation, Inc. | 256 | — | 1 |
| AS61125US | SABOTAGE SABOTAGE LLC | 256 | 1 | 2 |
| AS53327US | CO-OPERATIVE-INSURANCE-COMPANIES - Co-operative Insurance Companies, inc. | 256 | — | 1 |
| AS393241US | OU-ASN - UNION OF ORTHODOX JEWISH CONGREGATIONS OF AMERICA | 256 | — | 1 |
| AS398469US | FOXTHERMAL-ASN - Fox Thermal Instruments Inc | 256 | — | 1 |
| AS26993US | STANDARDASN - STANDARD TEXTILE CO., INC. | 256 | — | 1 |
| AS401747US | MOPS-ASN-1 - MODERNOPS | 256 | — | 1 |
| AS397082US | ASRC - Arctic Slope Regional Corporation | 256 | — | 1 |
| AS401994US | BBOED-ASN1 - Bayonne Board of Education | 256 | — | 1 |
| AS398922US | JDSL-ASN - Jubilee Data Systems, LLC | 256 | 1 | 2 |
| AS398886US | PEC-AS-01 - Progressive Expert Consulting, Inc. | 256 | — | 1 |
| AS397141US | VIS-LLC-SC - VIS LLC | 256 | — | 1 |
| AS25603US | NATIONWIDE-MUTUAL-INSURANCE-COMPANY - Nationwide Mutual Insurance Company | 256 | — | 1 |
| AS219034US | BadAimWeeb Quang Lam Le | 256 | 1 | 2 |
| AS395974US | COMCAST-MES - Comcast Cable Communications, LLC | 256 | — | 1 |
| AS393756US | TX-TCU - texanscu | 256 | — | 1 |
| AS400553US | SUPERCORE - SuperCore LLC | 256 | — | 1 |
| AS19121US | BLATTNER-HOLDING-COMPANY - Blattner Company | 256 | — | 1 |
| AS198321US | EU-VIST-NET Visteon Corporation | 256 | — | 1 |
| AS394843US | TECH-OUTFITTER - Technology Outfitter, LLC | 256 | — | 1 |
| AS12077US | SUBCONSCIOUS - Subconscious | 256 | 256 | 2 |
| AS36863US | ABC-BITS-WC - American Broadcasting Companies, Inc. | 256 | — | 1 |
| AS207563US | POSEIDON Poseidon Laboratories LLC | 256 | 2 | 3 |
| AS393828US | EA-MADISON - Electronic Arts, Inc. | 256 | — | 1 |
| AS393274US | DARIGOLD-NET - Darigold, Inc. | 256 | — | 1 |
| AS16671US | COLOBLOX - Coloblox Data Centers Inc | 256 | — | 1 |