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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 | 23,666 |
| 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 |
| 234 |
| 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 | 4,491 |
| — |
| 0 |
| AS62481US | TRUIST-ASN-62481 - Truist Financial Corporation | — | — | 0 |
| AS135271US | GLOBTELGROUP-AS-AP - Global Telecom Group LLC | — | — | 0 |
| AS132128US | CTL-AS-AP - CommScope Technologies LLC | — | — | 0 |
| AS63446US | GLOBALCONNECTIONS-AS - Global Connections, Inc | — | — | 0 |
| AS64219US | MEGAPORTUSAINC-SEAIX-US - Megaport (USA) Inc. | — | — | 0 |
| AS136025US | ORACLE-AS-AP - Oracle Corporation | — | — | 0 |
| AS11518US | ROBBINSMORTON - Robins & Morton, L.L.C. | — | — | 0 |
| AS212149US | Hammynet Hammy Web Services LLC | — | — | 0 |
| AS63233US | LC-LAS-63233 - LendingClub Corporation | — | — | 0 |
| AS10887US | BPSI-AS - BPSI Internet Services | — | — | 0 |
| AS10831US | CENTURYLINK-QC-MOE-PORTLAND - CenturyLink Communications, LLC | — | — | 0 |
| AS10740US | OWO-AS - Origin Systems, INC. | — | — | 0 |
| AS10774US | SBIS-ASN-BLK-2 - AT&T Enterprises, LLC | — | — | 0 |
| AS13669US | VRIS-AS-BLOCK - Verizon Business | — | — | 0 |
| AS13633US | OOCL-MNL - OOCL (USA), Inc. | — | — | 0 |
| AS13421US | SBCIS-ABLNTX - AT&T Enterprises, LLC | — | — | 0 |
| AS147025US | ISC-AS-AP - Internet Systems Consortium | — | — | 0 |
| AS11880US | TICKE-19-ASN - Tickets.com, Inc. | — | — | 0 |
| AS11871US | DUKE-MW-AS11871 - Duke Energy Corporation | — | — | 0 |
| AS11818US | BHN-11818-NA - Charter Communications, Inc | — | — | 0 |
| AS393343US | RW-SHANHS - Ranch WiFi LLC | — | — | 0 |
| AS36017US | CESL-21-ASN-36017 - Claro Enterprise Solutions, LLC | — | — | 0 |
| AS39973US | INTERNATIONAL-FLAVORS-AND-FRAGRANCES - International Flavors & Fragrances, Inc. | — | — | 0 |
| AS39182US | JUMPTRADING-39182-AS Jump Systems, LLC | — | — | 0 |
| AS36715US | APOG-CHICAGO-COLO - Apogee Telecom Inc. | — | — | 0 |
| AS36781US | ERT - ERT | — | — | 0 |
| AS36463US | ASN-STRAUSS - Martin Strauss Technologies, LLC | — | — | 0 |
| AS36449US | INSIGHT-AS - Insight Direct USA, Inc. | — | — | 0 |
| AS393884US | VL-135 - Zenlayer Inc | — | — | 0 |
| AS36624US | GGTLD - VeriSign Global Registry Services | — | — | 0 |
| AS393672US | NTHRIVE-ASN03 - Finthrive, Inc. | — | — | 0 |
| AS393648US | ACTON-SOFTWARE - Act-On Software | — | — | 0 |
| AS393314US | ORACLE-BYOASN - Oracle Corporation | — | — | 0 |
| AS394652US | BG-DR-AS1 - Brasfield & Gorrie, LLC | — | — | 0 |
| AS214092US | Zachary-Ezetta Zachary Ezetta | — | — | 0 |
| AS212789US | BullCloud-Network-Technology BullCloud Network Technology Ltd | — | — | 0 |
| AS395280US | CARTUS-US - Cartus Corporation | — | — | 0 |
| AS1349US | RADIANZ-AS-1349 - BT Americas, Inc | — | — | 0 |
| AS213073US | BYTESIZE Bytesize Internet LLC | — | 1 | 1 |
| AS394639US | GOOGLE - Google LLC | — | — | 0 |
| AS394341US | AGI - ANALYTICAL GRAPHICS INC. | — | — | 0 |
| AS394461US | BRYAN-EQUIPMENT-SALES - Bryan Equipment Sales, Inc. | — | — | 0 |
| AS394837US | RIZZ-FIBER - Rizz Fiber | — | — | 0 |
| AS63106US | NEILL-DAL - Neill Corporation | — | — | 0 |
| AS62687US | COLONIAL-SAVINGS-F-A - Colonial Savings, F.A. | — | — | 0 |
| AS394156US | TSYS-EQUINIX-SV1 - Global Payments Inc. | — | — | 0 |