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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) | 227.4M | 3,133 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 217.9M | 24,372 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 643 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.7M | 1,322 |
| 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.
32,235 autonomous systems registered to United States. Click an AS for detail.
| 72.9M |
| 229 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 437 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.6M | 3,906 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.9M | 2,006 |
| AS701US | UUNET - Verizon Business | 43.6M | 993 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.7M | 4,275 |
| — |
| — |
| 0 |
| AS397139US | NRS - WB Games Inc. | — | — | 0 |
| AS397191US | AS11795 - Sony | — | — | 0 |
| AS397201US | VRSN-AC28 - VeriSign Global Registry Services | — | — | 0 |
| AS397202US | VRSN-AC28 - VeriSign Global Registry Services | — | — | 0 |
| AS397212US | VRSN-AC28 - VeriSign Global Registry Services | — | — | 0 |
| AS397228US | SECURITYSERVICES - Vercara, LLC | — | — | 0 |
| AS397230US | SECURITYSERVICES - Vercara, LLC | — | — | 0 |
| AS397316US | KSP-OXBOW - KSP Fulfillment LLC | — | — | 0 |
| AS397339US | LEGACY-HWX - Cloudera, Inc. | — | — | 0 |
| AS397355US | ISERV-SWITCH - The Iserv Company, LLC | — | — | 0 |
| AS397368US | TETAHOST - DCNHOST | — | — | 0 |
| AS397389US | TIHQASN01 - Tortoise Capital Advisors, L.L.C. | — | — | 0 |
| AS397437US | AURIA-SLD-01 - Auria Solutions USA Inc. | — | — | 0 |
| AS397533US | IMECOM-GROUPINC-01 - Alhambra US | — | — | 0 |
| AS397578US | MGS-EXIT-HUB - MIC GLOBAL SERVICES, LLC | — | — | 0 |
| AS397643US | WSD3-GATEWAY-01 - Widefield School District 3 | — | — | 0 |
| AS397647US | BOLDPENGUIN-1 - Bold Penguin, Inc. | — | — | 0 |
| AS397669US | NSI-ASN - Northern Safety Co., Inc. | — | — | 0 |
| AS397768US | MEDSTAR - MedStar Mobile Healthcare | — | — | 0 |
| AS397792US | HDCO-GROUP - HDCO GROUP LLC | — | — | 0 |
| AS397875US | WHITEHAT-US-HOU-03 - Synopsys Inc. | — | — | 0 |
| AS397929US | DD-ASN-01 - ADT LLC | — | — | 0 |
| AS397970US | TTCU-01 - TTCU | — | — | 0 |
| AS397984US | JOCO-JIMS-01 - Johnson County Kansas | — | — | 0 |
| AS397997US | ERICSSON-ECA - Ericsson Inc. | — | — | 0 |
| AS398088US | USTELCO - United States Telecommunications Corporation | — | — | 0 |
| AS398227US | WANDERPORT-ASN-US-01 - Wanderport Networks, Inc. | — | — | 0 |
| AS398247US | HQ-BGP-HANDLE - Prescient Applied Intelligence, Inc. | — | — | 0 |
| AS398267US | IHMA-GLOBAL-01 - IHMA | — | — | 0 |
| AS398272US | CLOUDIT - CloudIT International LLC | — | — | 0 |
| AS398471US | CUPANET-MNS-AS - Commonwealth University of Pennsylvania | — | — | 0 |
| AS398472US | MIDSOUTH-ELECTRIC-CO-OP - Mid-South Synergy | — | — | 0 |
| AS398583US | CHARTER-BGP-INFRASTRUCTURE - Charter Communications LLC | — | — | 0 |
| AS398600US | CHARTER-BGP-INFRASTRUCTURE - Charter Communications LLC | — | — | 0 |
| AS398610US | CHARTER-BGP-INFRASTRUCTURE - Charter Communications LLC | — | — | 0 |
| AS398625US | CHARTER-BGP-INFRASTRUCTURE - Charter Communications LLC | — | — | 0 |
| AS398648US | MPIT-01 - Marvel Pivot Information Technology LLC | — | — | 0 |
| AS398659US | MICROSOFT-AZURE-DEDICATED - Microsoft Corporation | — | — | 0 |
| AS398688US | NXP-BUILD - Willis Towers Watson | — | — | 0 |
| AS398793US | GO-DADDY-COM-LLC - GoDaddy.com, LLC | — | — | 0 |
| AS398916US | EP-ASN-01 - EveryPeer, LLC | — | — | 0 |
| AS399008US | COLUMBUS-INTERNET-01 - Kimball Midwest | — | — | 0 |
| AS399096US | AMAT-CRH - CRH Americas Materials, Inc. | — | — | 0 |
| AS399141US | TLG-AS - THE LYNX GROUP, LLC | — | — | 0 |
| AS399163US | SECURITYSERVICES - Vercara, LLC | — | — | 0 |
| AS399171US | SECURITYSERVICES - Vercara, LLC | — | — | 0 |