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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 | 21,157 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 113.7M | 638 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,247 |
| 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 | 400 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 49.3M | 3,712 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.7M | 1,959 |
| AS701US | UUNET - Verizon Business | 43.6M | 1,000 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,302 |
| — |
| — |
| 0 |
| AS14156US | GRANDECOM-AS3 - Grande Communications Networks, LLC | — | — | 0 |
| AS14194US | OMH-INET-BLCK - Prisma Health | — | — | 0 |
| AS14311US | XO-ASN2 - Verizon Business | — | — | 0 |
| AS14347US | SCCI-1000 - Spectrum Communications & Consulting, Inc. | — | — | 0 |
| AS14349US | EVERGY-METRO-ASN-1 - Evergy Services, Inc. | — | — | 0 |
| AS14412US | IHOUSEASN1 - iHOUSEWEB Inc. | — | — | 0 |
| AS14546US | MIDWESTINTER - Midwestern Intermediate Unit IV | — | — | 0 |
| AS14613US | TOCICI - TOCICI LLC | — | — | 0 |
| AS14641US | CA-HQ-01 - Gigamon Inc. | — | — | 0 |
| AS14665US | PORCH-AS-01 - Porch.com | — | — | 0 |
| AS14796US | CVC-INTERNET - CVC Internet, LLC | — | — | 0 |
| AS14835US | PEAK10-NAS - Flexential Corp. | — | — | 0 |
| AS14863US | CORBAN - Corban University | — | — | 0 |
| AS14953US | CRYDON - Crydon Technology Corporation | — | — | 0 |
| AS14989US | BROADVIEWNET - Windstream Communications LLC | — | — | 0 |
| AS15039US | MSCDIRECT-1 - MSC Industrial Supply Co. | — | — | 0 |
| AS15048US | METLIFE-ASN - MetLife | — | — | 0 |
| AS15103US | KITTY-IX - KittyTransit LLC | — | — | 0 |
| AS15226US | QTS-SAT2 - Quality Technology Services, LLC | — | — | 0 |
| AS15339US | DRILLINGINFO - Drilling Info, Inc. | — | — | 0 |
| AS15356US | THEBANCORP - Thebancorp.com | — | — | 0 |
| AS15386US | IPBNB IPbnb LLC | — | — | 0 |
| AS16459US | M2NGAGE2 - M2ngage Telecommunications II Corp. | — | — | 0 |
| AS16516US | CAREMORE - Elevance Health, Inc. | — | — | 0 |
| AS16566US | DESERTSKY - Desert Sky Software | — | — | 0 |
| AS16602US | EOSTW-WACO - Optima Medical Group, P.A. | — | — | 0 |
| AS16726US | ROCHE-NUTLEY - Hoffmann LaRoche, Inc. | — | — | 0 |
| AS16727US | WOW-INTERNET - WideOpenWest Finance LLC | — | — | 0 |
| AS16792US | VWNA-AS1 - Volkswagen Group of America, Inc. | — | — | 0 |
| AS16820US | FREEBORN - Freeborn & Peters | — | — | 0 |
| AS16966US | SBCIDC-LSAN03 - AT&T Enterprises, LLC | — | — | 0 |
| AS17020US | DXC-AS17020 - DXC US Latin America Corporation | — | — | 0 |
| AS17021US | UNXCOM1 - Unx, LLC | — | — | 0 |
| AS17113US | AS-TIERP-17113 - TierPoint, LLC | — | — | 0 |
| AS17227US | ATT-CERFNET-BLOCK - AT&T Enterprises, LLC | — | — | 0 |
| AS17239US | HIGHSPEEDWEB-ACCESS - High Speed Web/Genesis 2 Networks | — | — | 0 |
| AS17246US | RCI - RCI Broadband | — | — | 0 |
| AS17370US | MCAFEE-COM - McAfee, LLC | — | — | 0 |
| AS17396US | TL5-1 - Gorrell's Computer Services, Inc. | — | — | 0 |
| AS18457US | FEATHER-IT-NET - Feather IT LLC | — | — | 0 |
| AS18575US | GEEKS - ipHouse | — | — | 0 |
| AS18582US | CONSUMERINFO - Consumerinfo.com, Inc. | — | — | 0 |
| AS18611US | ATRION - Carousel Industries of North America, LLC | — | — | 0 |
| AS18642US | SAGENET-ENT2 - SageNet LLC | — | — | 0 |
| AS18648US | HTRI - Heat Transfer Research, Inc. | — | — | 0 |
| AS18650US | KORAX - HostPapa | — | — | 0 |