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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 | 3,134 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 219M | 23,681 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 645 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,370 |
| 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.
32,364 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 236 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 439 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.8M | 3,914 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 45M | 2,047 |
| AS701US | UUNET - Verizon Business | 43.6M | 996 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.8M | 4,503 |
| INNGEST-01 - Inngest Inc. |
| 256 |
| 2 |
| 3 |
| AS40721US | PABMC - Pennsylvania House of Representatives BMC | 256 | — | 1 |
| AS53505US | DRCFA - Huntington Place | 256 | — | 1 |
| AS399990US | NTT-GLOBAL-DATA-CENTERS-AMERICA-INC - NTT Global Data Centers Americas, INC. | 256 | — | 1 |
| AS33245US | JABIL-AS-SINU-PH - Jabil | 256 | — | 1 |
| AS402762US | SHIFT4 - Shift4 | 256 | — | 1 |
| AS199770US | IQ-NET IQNET COMMUNICATIONS LLC | 256 | — | 1 |
| AS18748US | DAL-B2BVPN - Delta Air Lines | 256 | — | 1 |
| AS394119US | EXPERIMENTAL-COMPUTING-FACILITY - eXperimental Computing Facility Foundation | 256 | 4.1K | 3 |
| AS32920US | ITHAKA-AS32920 - ITHAKA Harbors, Inc. | 256 | — | 1 |
| AS400219US | COMMUNITYLTE - Local Pro | 256 | — | 1 |
| AS27031US | SCNM-TEMPE-1 - Southwest College of Naturopathic Medicine & Health Sciences Inc. | 256 | — | 1 |
| AS19010US | HODC - FloWorks International LLC | 256 | — | 1 |
| AS313US | DNIC-ASBLK-00306-00371 - United States Department of Defense (DoD) | 256 | — | 1 |
| AS401130US | SATURN-ASN-01 - SaturnDotDev | 256 | 256 | 2 |
| AS397870US | SFI - The Santa Fe Institute | 256 | — | 1 |
| AS32655US | TSG-RESOURCES - TSG Resources, Inc. | 256 | 256 | 2 |
| AS63196US | APEX01 - APEX INDUSTRIAL TECHNOLOGIES LLC | 256 | — | 1 |
| AS396188US | UMOJO - Umojo, Inc. | 256 | — | 1 |
| AS210676US | Appline_Group_LLC Appline Group LLC | 256 | — | 1 |
| AS396849US | KPRC - GRAHAM MEDIA GROUP, HOUSTON, INC. | 256 | — | 1 |
| AS40331US | MRCYHQ - Mercury Systems, Inc. | 256 | — | 1 |
| AS54095US | AUTO-OWNERS - Auto-Owners Insurance Company | 256 | — | 1 |
| AS402232US | ADMA-ASN-01 - ADMA BIOMANUFACTURING, LLC | 256 | — | 1 |
| AS32450US | TESU-WEB - Thomas Edison State University | 256 | — | 1 |
| AS18680US | AKAMAI-AS - Akamai Technologies, Inc. | 256 | — | 1 |
| AS26826US | OUSD-SOCAL - Orange Unified School District | 256 | — | 1 |
| AS40075US | RADIOLOGYLTD-ASN - Radiology LTD | 256 | — | 1 |
| AS53693US | RAA-NYC-NET - Ralph Appelbaum Associates, Inc. | 256 | — | 1 |
| AS54047US | CAMERONASHLEY - Cameron Ashley Building Products, Inc. | 256 | — | 1 |
| AS400362US | HYDRA-HOST - Hydra Host, Inc. | 256 | 1 | 2 |
| AS23402US | KMG125 - Katz Media Group | 256 | — | 1 |
| AS396911US | DPLO-411SSFLT - Diplomat Pharmacy, Inc | 256 | — | 1 |
| AS401255US | NORTHWEST-TOWERS-01 - Northwest Towers | 256 | — | 1 |
| AS63193US | AHS - Atlanticare Health System Inc. | 256 | — | 1 |
| AS62961US | BISNET1 - Blueshift Information Systems Inc. | 256 | — | 1 |
| AS25825US | PVH-ASN-1 - Poudre Valley Health Care, Inc. | 256 | — | 1 |
| AS30169US | WLATC2160 - Western Light and Tower Company Inc | 256 | — | 1 |
| AS397638US | MLHS - Mille Lacs Health System | 256 | — | 1 |
| AS63378US | JJI - J. Josephson, Inc. | 256 | — | 1 |
| AS403098US | SKIMIT-NET - skimit | 256 | 1 | 2 |
| AS46336US | GOODVILLE - Goodville Mutual Casualty Company | 256 | — | 1 |
| AS398543US | CN-ASN-TRILIGHT-SPECTRUM - Carson-Newman University | 256 | — | 1 |
| AS59662US | DOCUS-EMEA-PROD DocuSign, Inc. | 256 | — | 1 |
| AS19728US | HUGHESBROS - Hughes Brothers Inc. | 256 | — | 1 |
| AS43737US | NODESDIRECT Nodes Direct Holdings LLC | 256 | — | 1 |
| AS399579US | CPASNET2 - Centerview Partners, LLC | 256 | — | 1 |