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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 | 24,555 |
| 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 |
| 232 |
| 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 | 1,995 |
| AS701US | UUNET - Verizon Business | 43.6M | 994 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,354 |
| 256 |
| 1 |
| 2 |
| AS22815US | KELLY-INSURANCE-GROUP - Kelly and Associates Insurance Group | 256 | — | 1 |
| AS25724US | EXPENSEANYWHERE - Virtual Communications | 256 | — | 1 |
| AS19707US | SETL-1-AS-00 - Summit Energy Tech LLC | 256 | — | 1 |
| AS219051US | XND-NET X Next Digital LLC | 256 | 20 | 6 |
| AS393520US | FTSC-HQ - Fulcrum Technology Solutions, LLC | 256 | — | 1 |
| AS40179US | HC06 - Hunterdon Central Regional High School | 256 | — | 1 |
| AS40331US | MRCYHQ - Mercury Systems, Inc. | 256 | — | 1 |
| AS31774US | TACONIC-CAPITAL-ADVISORS - Taconic Capital Advisors L.P. | 256 | — | 1 |
| AS33462US | JANUS-LEXINGTON-MA - JANUS Research Group | 256 | — | 1 |
| AS399433US | AS-MS-78058 - Blue Cross Blue Shield of Illinois or Blue Cross Blue Shield of Texas | 256 | — | 1 |
| AS54360US | USJ-ASN - USJ | 256 | — | 1 |
| AS401782US | BOKU-ASN-01 - Boku, Inc. | 256 | — | 1 |
| AS402622US | OSS-1 - Offline | 256 | 256 | 2 |
| AS36746US | SYMQUEST-SB-NET - SymQuest Group. Inc | 256 | — | 1 |
| AS133052US | FXCM-ASIA-AS-AP - FX Corporate LLC | 256 | — | 1 |
| AS13714US | AS-AFILIAS-SYD1 - Afilias, Inc. | 256 | — | 1 |
| AS40378US | NESSIT - Nessit, LLC | 256 | — | 1 |
| AS62732US | BCC-BGP - Boston Coach Corp. | 256 | — | 1 |
| AS17349US | INSITU-EQ - Insitu, Inc | 256 | — | 1 |
| AS395548US | HFCU-NET - Hughes Federal Credit Union | 256 | — | 1 |
| AS401815US | SILIS - Silis LLC | 256 | 20 | 6 |
| AS397176US | NBMC - New Bridge Medical Center | 256 | — | 1 |
| AS63458US | KGPTEL - KGP Telecommunications, Inc. | 256 | — | 1 |
| AS401255US | NORTHWEST-TOWERS-01 - Northwest Towers | 256 | — | 1 |
| AS402845US | NEROA - Neroa | 256 | 4.1K | 2 |
| AS54089US | OPTECH - Operational Technologies Corporation | 256 | — | 1 |
| AS22470US | NBME - National Board of Medical Examiners | 256 | — | 1 |
| AS397495US | TOWNOFOROVALLEY-02 - Town of Oro Valley | 256 | — | 1 |
| AS36192US | AS-HOSTCIRCLE-01 - HOSTCIRCLE INC. | 256 | 1 | 2 |
| AS16408US | LN-DREWU-ASN - Los Nettos | 256 | — | 1 |
| AS398707US | PUEBLO-DE-COCHITI-NSN - Pueblo de Cochiti | 256 | 65.5K | 2 |
| AS401130US | SATURN-ASN-01 - SaturnDotDev | 256 | 256 | 2 |
| AS393708US | 4EOS-COM - 4EOS | 256 | — | 1 |
| AS399627US | CITY-OF-MOUNTAIN-VIEW - City of Mountain View | 256 | — | 1 |
| AS395116US | AVH-1600-WEST - Antelope Valley Healthcare District | 256 | — | 1 |
| AS63464US | SUNSASN - THE PHOENIX SUNS | 256 | — | 1 |
| AS27341US | GFNET-AS01 - Gannet Fleming, Inc. | 256 | — | 1 |
| AS400919US | AKARDAM-NET - Akardam Networks | 256 | 4 | 5 |
| AS394113US | INCCRRA-MAIN - INCCRRA | 256 | — | 1 |
| AS394235US | MVCSKYNET - Many Ventures Compute L.L.C. | 256 | — | 1 |
| AS46565US | COC-AS - City of Columbia | 256 | — | 1 |
| AS394824US | CBU - Christian Brothers University | 256 | — | 1 |
| AS26882US | RIPPLE-BROADBAND - Ripple Broadband, LLC | 256 | 65.5K | 2 |
| AS398099US | BVFNET - Bay View Funding | 256 | 16 | 2 |
| AS32518US | BMGL-AS - Just the News | 256 | — | 1 |
| AS12020US | MHSC-BGP-ASN - Methodist Hospital of Southern California | 256 | — | 1 |