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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 | 3,133 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 219M | 23,661 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 645 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,361 |
| 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.
32,363 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 | 3,911 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 45M | 2,046 |
| AS701US | UUNET - Verizon Business | 43.6M | 996 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.8M | 4,490 |
| 1.3K |
| — |
| 5 |
| AS46251US | THRIVE-E5 - InfoHedge Technologies, LLC | 1.3K | — | 2 |
| AS46373US | CONCENTUSNET - Concentus.net | 1.3K | — | 5 |
| AS402948US | HOSTFC - HostFC, | 1.3K | 256 | 3 |
| AS16925US | COSMB-MAIN-NET-00 - Cloud Optimized SMB LLC | 1.3K | 4.7K | 10 |
| AS401304US | PROPEL-CLOUD-02 - PropelCLOUD | 1.3K | — | 3 |
| AS401912US | ASN-BVSD-01 - Boulder Valley School District (BVSD) | 1.3K | — | 5 |
| AS1562US | DNIC-ASBLK-01550-01601 - United States Department of Defense (DoD) | 1.3K | — | 4 |
| AS26815US | LOWENS01 - Lowenstein Sandler | 1.3K | — | 5 |
| AS30284US | CITIGROUP-BANAMEX - Citigroup Inc. | 1.3K | — | 5 |
| AS62656US | COZAQ - Cozaq | 1.3K | — | 2 |
| AS23204US | HMSA-ASNID - Hawaii Medical Service Association | 1.3K | — | 4 |
| AS19393US | ROBERTS-COMMUNICATIONS-NETWORK - Roberts Communications Network, LLC | 1.3K | — | 4 |
| AS397071US | AWEB-LLC-ASN - AWEB LLC | 1.3K | 1 | 6 |
| AS21959US | RMI-NETWORK-ATLANTA - Railcar Management Inc | 1.3K | — | 5 |
| AS11140US | BEHRPROCESS - Behr Process | 1.3K | — | 2 |
| AS30114US | DECIMA-LLC - Decima LLC | 1.3K | 40 | 12 |
| AS400807US | BMU-GW-01 - BRYAN MUNICIPAL UTILITIES | 1.3K | — | 5 |
| AS401382US | ZENIX-CLOUD-AS1 - Zenix Solutions, LLC | 1.3K | 256 | 3 |
| AS31865US | SWKAS - THE STANLEY WORKS | 1.3K | — | 2 |
| AS22034US | MCMNET - MCMASTER CARR SUPPLY COMPANY | 1.3K | — | 5 |
| AS53629US | CNBT-AS - THE CITY NATIONAL BANK OF TAYLOR | 1.3K | — | 5 |
| AS398196US | COBALT-RIDGE - Cobalt Ridge | 1.3K | — | 4 |
| AS216174US | ASN-SNL Spearware Networks LLC | 1.3K | 272 | 7 |
| AS36539US | PEAK6 - Peak6 Group LLC | 1.3K | — | 4 |
| AS47689US | Pudu Pudu, LLC | 1.3K | 65.8K | 13 |
| AS397410US | MTG-AS - Mainstream Technology Group | 1.3K | — | 4 |
| AS54531US | LPCH-PA - LUCILE SALTER PACKARD CHILDREN'S HOSPITAL AT STANFORD | 1.3K | — | 2 |
| AS32969US | GLOBAL-CASH-ACCESS - Everi Payments Inc. | 1.3K | — | 5 |
| AS27613US | TYLERTECH-CCS1 - Tyler Technologies, Inc. | 1.3K | 5 | 10 |
| AS6534US | OCEANIC-CABLE - Charter Communications Inc | 1.3K | — | 2 |
| AS36819US | MELALEUCA-INC - MELALEUCA INC. | 1.3K | — | 5 |
| AS394540US | NETJETS - NETJETS INC | 1.3K | — | 2 |
| AS23046US | INFINITE-CAMPUS-GA - Infinite Campus, Incorporated | 1.3K | — | 2 |
| AS16493US | ABERCROMBIE-FITCH - Abercrombie & Fitch | 1.3K | — | 5 |
| AS398491US | HYPEREXPERT - Hyper Expert, LLC | 1.3K | 8.2K | 7 |
| AS39945US | NUSPIRE - Nuspire Communications | 1.3K | — | 4 |
| AS397973US | CDS-GLOBAL-01 - CDS GLOBAL, INC. | 1.3K | — | 5 |
| AS19470US | LCPS - LAS CRUCES PUBLIC SCHOOLS | 1.3K | — | 2 |
| AS398065US | FRITZ-LABS - Fritz Lab LLC | 1.3K | 16 | 5 |
| AS33261US | PHRG - Power Home Remodeling LLC | 1.3K | — | 5 |
| AS14278US | BBOX-IT-AS-1 - Black Box Network Services | 1.3K | — | 5 |
| AS27527US | HTFCU-AS - Heritage Trust Federal Credit Union | 1.3K | — | 2 |
| AS394516US | COUNTYOFNAPAAS - County of Napa MIS | 1.3K | — | 2 |
| AS21718US | NW-NATURAL-GAS - Northwest Natural Gas | 1.3K | — | 5 |
| AS55171US | MTS-HEALTHCARE - MTS Healthcare | 1.3K | — | 4 |
| AS36593US | ASPEN-SMART-NETWORKS - Aspen Wireless Technologies Inc | 1.3K | — | 3 |