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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 | 3,136 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 210.5M | 20,721 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 113.7M | 638 |
| AS721US | DNIC-ASBLK-00721-00726 - United States Department of Defense (DoD) | 73.1M | 229 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC |
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.
| 68.3M |
| 366 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 66.4M | 1,106 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 47.9M | 3,574 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.7M | 1,926 |
| AS701US | UUNET - Verizon Business | 43.6M | 1,000 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.2M | 4,508 |
| — |
| — |
| 0 |
| AS5805US | DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) | — | — | 0 |
| AS5710US | NBTBA-ASN - NBT BANCORP INC. | — | — | 0 |
| AS201445US | Zerval-Network Zerval Network LLC | — | 4 | 4 |
| AS3981US | UTELFLA - Sprint/United Telephone-Florida | — | — | 0 |
| AS5368US | DNIC-ASBLK-05120-05376 - United States Department of Defense (DoD) | — | — | 0 |
| AS4070US | DNIC-ASBLK-04065-04125 - Headquarters, USAISC | — | — | 0 |
| AS401855US | FTOP - Maximize Marketing Agency, Inc. | — | — | 0 |
| AS401101US | THEKNIFECOMPANY-NICKNAME-FOR-ASN - A.G. Russell Knives, Inc. | — | — | 0 |
| AS400969US | PEG-TW-01 - PEG TECH INC | — | — | 0 |
| AS13527US | GOOFL-TESTBED - Gooflare LLC | — | 216 | 201 |
| AS401942US | ECHO911 - Echo911 PSAP 8753 | — | — | 0 |
| AS402112US | TABAR-1 - Tabarruk | — | — | 0 |
| AS402016US | ASU-THREERIVERS-AS - Arkansas State University | — | — | 0 |
| AS401980US | AS-OZKAY - Ozkay LLC | — | — | 0 |
| AS401862US | CWTEL - Chazy and Westport Communications | — | — | 0 |
| AS213774US | NANCYANDSYSROM NANCYANDSYSROM LLC | — | 1 | 1 |
| AS401018US | AXLETREE-NET-01 - Axletree Solutions Inc. | — | — | 0 |
| AS402474US | LMESSER-LABS - Zachary | — | 256 | 1 |
| AS19801US | SANOFI - Sanofi | — | — | 0 |
| AS398591US | CHARTER-BGP-INFRASTRUCTURE - Charter Communications LLC | — | — | 0 |
| AS398514US | DNIC-ASBLK-4BYTE - United States Department of Defense (DoD) | — | — | 0 |
| AS398661US | MICROSOFT-AZURE-DEDICATED - Microsoft Corporation | — | — | 0 |
| AS397798US | MSGTEL - MSG Tel, Inc. | — | — | 0 |
| AS397907US | 865 - AEG | — | — | 0 |
| AS400296US | DART-NET - Snaju Development | — | — | 0 |
| AS401533US | TGSLLC-02 - TGS, LLC | — | 1 | 1 |
| AS393788US | LUXCO-AS - Luxco Inc. | — | — | 0 |
| AS396050US | HYPERGROUP-IX - Hyper Group Network LLC | — | — | 0 |
| AS397083US | CEL-NET1-V4 - Chicopee Electric Light | — | — | 0 |
| AS397064US | BAYFIELD-WIRELESS - Bayfield Wireless | — | — | 0 |
| AS394618US | NEXTGEAR-CAPITAL-EXPEDIENT - NextGear Capital, Inc. | — | — | 0 |
| AS394753US | TELCOM-SUPPLY - Highline Services, LLC | — | — | 0 |
| AS394514US | WACT-ASN - Car Toys, Inc. | — | — | 0 |
| AS51312US | SRSP-4-51312 - Aubrey Rose | — | 16 | 1 |
| AS395983US | AS-BT-D0 - Bankers Trust | — | — | 0 |
| AS394014US | SSASN-01 - Solutionstar Settlement Service LLC | — | — | 0 |
| AS398024US | ELEMENT-4-SWGR - Element Four | — | 1 | 1 |
| AS393771US | MHL-731 - DS Metis Holdings LLC | — | — | 0 |
| AS395520US | PLATFORM9 - Platform9 | — | — | 0 |
| AS395547US | WABCTVNET-7LS - WABC-TV/EABC-TV | — | — | 0 |
| AS395469US | FINDLAY-AUTOMOTIVE - Findlay | — | — | 0 |
| AS25618US | SHINE - SHINESHAN | — | 256 | 1 |
| AS400763US | AMS-AUX-AUSTIN - HEWLETT PACKARD ENTERPRISE COMPANY | — | — | 0 |
| AS394909US | TALEND-ASN - Talend Inc. | — | — | 0 |
| AS401532US | EDGEHOG - Edgehog LLC | — | — | 0 |
| AS401524US | WORLDPAY-US-01 - Worldpay, LLC | — | — | 0 |