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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 | 21,163 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 113.7M | 639 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,245 |
| 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 | 398 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 49.3M | 3,708 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.7M | 1,952 |
| AS701US | UUNET - Verizon Business | 43.6M | 1,000 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,420 |
| — |
| — |
| 0 |
| AS17299US | LINKGRID-ASN - VinAudit.com, Inc. | — | — | 0 |
| AS17332US | TAXACT2 - 2nd Story Software, Inc. | — | — | 0 |
| AS18511US | NCLUD - NCLUD | — | — | 0 |
| AS18657US | MEETUP - Meetup, Inc. | — | — | 0 |
| AS18726US | SECUREWORKS-18726 - SecureWorks Corp | — | — | 0 |
| AS18788US | WEC - WEC Business Services LLC | — | — | 0 |
| AS18797US | SAT-IX - H5 Data Centers | — | — | 0 |
| AS18863US | BPL-232-18863 - Barbary Partners | — | — | 0 |
| AS18960US | HORNELL-INTERNET-PRIMARY - Hornell Brewing Co., Inc. | — | — | 0 |
| AS18969US | KLC-AS-1 - Knowledge Learning Corporation | — | — | 0 |
| AS19018US | MEGAPATH7-US - GTT Americas, LLC | — | — | 0 |
| AS19029US | NEWEDGENETS - Windstream Communications LLC | — | — | 0 |
| AS19097US | GWRE-SM - Guidewire Software, Inc. | — | — | 0 |
| AS19101US | MANCHESTERNH - City Of Manchester, NH | — | — | 0 |
| AS19207US | OPENMARKET-INC - Infobip | — | — | 0 |
| AS19296US | SUNGARDAS-19296 - BroadbandONE, LLC | — | — | 0 |
| AS19333US | ACML-2 - AllianceBernstein L.P. | — | — | 0 |
| AS19346US | STRATEGICSTAFFINGSOLUTIONS - Strategic Staffing Solutions, Inc. | — | — | 0 |
| AS19362US | AMERICAN-ACADEMY-OF-PEDIATRICS - American Academy of Pediatrics | — | — | 0 |
| AS19433US | MISO-AS - Midcontinent Independent System Operator, Inc. | — | — | 0 |
| AS19461US | OPSOURCE-INC-2 - NTT Cloud Infrastructure, Inc. | — | — | 0 |
| AS19495US | SBCASI-AKRON-OH-COVLIL - Wireless Maritime Services, LLC | — | — | 0 |
| AS19498US | SBCASI-AKRON-OH-COVLIL - Wireless Maritime Services, LLC | — | — | 0 |
| AS19501US | TTURWN - Texas Tech University | — | — | 0 |
| AS19509US | OLLUSA - Our Lady of the Lake University | — | — | 0 |
| AS19517US | VISUAL-LINK-INOC - Visual Link | — | — | 0 |
| AS19552US | STRYKER-CORPORATION - Stryker Corporation | — | — | 0 |
| AS19573US | PACIFIC-NATIONAL - PACIFIC NATIONAL BANK | — | — | 0 |
| AS19620US | PCCH-CARTER - Potawatomi Bingo Casino | — | — | 0 |
| AS19633US | DOCUSIGN-TK - Docusign, Inc | — | — | 0 |
| AS19735US | BADGERLANDFINANCIAL-ACA - Badgerland Financial, ACA | — | — | 0 |
| AS19741US | NII - NII Holdings, Inc. | — | — | 0 |
| AS19775US | INTRASYSTEMS - Intrasystems, LLC | — | — | 0 |
| AS19777US | TAMARAC-SEATTLE - ENV | — | — | 0 |
| AS19781US | AAA-CLUB-ALLIANCE - AAA Club Alliance Inc. | — | — | 0 |
| AS19801US | SANOFI - Sanofi | — | — | 0 |
| AS19891US | F-SECURE-AS-US - WithSecure Inc. | — | — | 0 |
| AS19992US | CALOP-63-66-184-224 - Caloptima | — | — | 0 |
| AS20006US | CORTEL-JH - Cortel Business Systems | — | — | 0 |
| AS20072US | WEBSTER-BANK - Webster Bank, National Association | — | — | 0 |
| AS20146US | ASN1GUARD23ATTWINSTAR - Guardian Industries Corp | — | — | 0 |
| AS20185US | GEUS-CABLE-INTERNET - GEUS | — | — | 0 |
| AS20268US | BAKERPH - Baker College | — | — | 0 |
| AS20275US | PCA-LATNY - Pearl Carroll & Associates LLC | — | — | 0 |
| AS20316US | THE-SUPERIOR-GROUP - The Superior Group | — | — | 0 |
| AS20336US | NYSDOT - New York State Department of Transportation | — | — | 0 |