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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) | 227.5M | 3,133 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 217.9M | 23,731 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 644 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.6M | 1,300 |
| 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.
32,144 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 232 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 437 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.5M | 3,838 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 1,995 |
| AS701US | UUNET - Verizon Business | 43.6M | 995 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,313 |
| — |
| — |
| 0 |
| AS4122US | DNIC-ASBLK-04065-04125 - Headquarters, USAISC | — | — | 0 |
| AS54795US | BUILD-AMERICA-MUTUAL-ASSURANCE - Build America Mutual Assurance Company | — | — | 0 |
| AS5130US | DNIC-ASBLK-05120-05376 - United States Department of Defense (DoD) | — | — | 0 |
| AS5142US | DNIC-ASBLK-05120-05376 - United States Department of Defense (DoD) | — | — | 0 |
| AS4559US | AS4559 - Anton Kapela, Sole Proprietorship | — | — | 0 |
| AS4494US | INTERBYTES - Megabytes.inc. | — | — | 0 |
| AS10597US | CRUSOE-AS - Crusoe Communications, Inc. | — | — | 0 |
| AS4054US | SIRIUS - EZNet, Inc. | — | — | 0 |
| AS10342US | INETINFOSVCS-AS - Internet Information Services, Inc. | — | — | 0 |
| AS10304US | NETCHANNEL - Netchannel, INC. | — | — | 0 |
| AS394937US | ATC - Windstream Communications LLC | — | — | 0 |
| AS394692US | STARWOOD-IRVINE-CA - Marriott International, Inc. | — | — | 0 |
| AS394652US | BG-DR-AS1 - Brasfield & Gorrie, LLC | — | — | 0 |
| AS394412US | CITY-OF-TAMARAC - City of Tamarac | — | — | 0 |
| AS394524US | QSCEND - QScend Technologies, Inc. | — | — | 0 |
| AS393897US | GORDIAN-GROUP - The Gordian Group, Inc. | — | — | 0 |
| AS393890US | BTEKSO - BTEK SOFTWARE | — | — | 0 |
| AS395184US | ROLLERNETWORK-2 - Roller Network LLC | — | — | 0 |
| AS46487US | YAKAMANATIONNETWORKS-01 - Yakama Nation Networks | — | — | 0 |
| AS54329US | SUMOFIBER-54329 - Sumofiber | — | — | 0 |
| AS394892US | AMYSKITCHEN - Amy's Kitchen, Inc. | — | — | 0 |
| AS395082US | BODIS-NJ - Bodis, LLC | — | — | 0 |
| AS394871US | NETAICLOULD LLC - Netaiclould LLC | — | — | 0 |
| AS64270US | PACIFICRACK - QuadraNet Enterprises LLC | — | — | 0 |
| AS64215US | MEGAPORTUSAINC-SFOIX-US - Megaport (USA) Inc. | — | — | 0 |
| AS63228US | QUICKPACKET-2 - QuickPacket, LLC | — | — | 0 |
| AS132802US | EAAPPL-AS-AP - Electronic Arts Inc. | — | — | 0 |
| AS393411US | APOG-WASHINGTON-COLLEGE - Apogee Telecom Inc. | — | — | 0 |
| AS46657US | KPS-HORIZON-NET-2 - KNIGHT POINT SYSTEMS, LLC | — | — | 0 |
| AS54699US | KWMINCUSA - KWM, INC. | — | — | 0 |
| AS55031US | DATADOG - Datadog, Inc. | — | — | 0 |
| AS62859US | QTTECHEXT - QT Technologies | — | — | 0 |
| AS62838US | REPRISE-HOSTING - Reprise Hosting | — | — | 0 |
| AS62786US | MIMOSA - Mimosa Networks, Inc. | — | — | 0 |
| AS62818US | SST-59 - Pinpoint Communications, Inc. | — | — | 0 |
| AS62464US | ZIMMER-BUSINESS-SOLUTIONS - Zimmer Holdings Inc. | — | — | 0 |
| AS60234US | Ausra Ausra LLC | — | — | 0 |
| AS398133US | DMEA - DMEA | — | — | 0 |
| AS54533US | CPN - CSN Support Services | — | — | 0 |
| AS46316US | DREC-AS-01 - Dayton Realtime Equipment Company | — | — | 0 |
| AS46297US | NEWWAVECOMM3 - New Wave Communications | — | — | 0 |
| AS40917US | AUTOTASK-CORPORATION - Autotask Corporation | — | — | 0 |
| AS46234US | LIKECO - Like.Com | — | — | 0 |
| AS53982US | GILTGROUPE-AS - Hudson's Bay Company | — | — | 0 |
| AS53980US | BRIGHTSTAR-COMMUNICATIONS - Brightstar Communications Inc | — | — | 0 |
| AS53580US | MARKETO - MARKETO, Inc. | — | — | 0 |