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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 | 3,135 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 211.2M | 21,254 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 113.7M | 639 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,267 |
| 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 | 413 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 49.3M | 3,726 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 1,965 |
| AS701US | UUNET - Verizon Business | 43.6M | 1,000 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,346 |
| — |
| — |
| 0 |
| AS8040US | MMD - MMD Entertainment, LLC | — | — | 0 |
| AS8060US | BELLSOUTH-NET-BLK3 - AT&T Enterprises, LLC | — | — | 0 |
| AS8083US | CONGQTLY - Congressional Quarterly | — | — | 0 |
| AS8087US | NEUMEDIA - NeuMedia, Inc. | — | — | 0 |
| AS8158US | LIL-16 - CACI Inc., Federal | — | — | 0 |
| AS8189US | STRATOS - Stratos Internet Group, Inc. | — | — | 0 |
| AS10263US | MATCHMAKER - MatchMaker/DFW-ISP | — | — | 0 |
| AS10280US | DIALIP-E-SW - GLOBAL ONE | — | — | 0 |
| AS10283US | DIALIP-AMERICAS - GLOBAL ONE | — | — | 0 |
| AS10312US | HEARTPORT - Heartport Inc. | — | — | 0 |
| AS10314US | FIRSTLIGHT-AS-10314 - FirstLight Fiber, Inc. | — | — | 0 |
| AS10327US | WATEEFY - ComputerLand of Boise | — | — | 0 |
| AS10378US | NODEWARRIOR - NodeWarrior Networks, Inc | — | — | 0 |
| AS10424US | CENTURYLINK-CO-LAN - CenturyLink Communications, LLC | — | — | 0 |
| AS10501US | PACLINK - PacLink Communications LLC | — | — | 0 |
| AS10512US | EFOREX-AS - E-FOREX | — | — | 0 |
| AS10523US | ROADRUNNER-003-ALBANY - Excalibur Group | — | — | 0 |
| AS10530US | VERESTAR - SES Americom Inc. | — | — | 0 |
| AS10535US | USNETWAY - US Netway, Inc. | — | — | 0 |
| AS10548US | LCGM-AS1 - LCGM, Inc. | — | — | 0 |
| AS10573US | WEBNEXUS - WebNexus Communications Inc. | — | — | 0 |
| AS10574US | BJKE - BJK & E, Inc. | — | — | 0 |
| AS10643US | SUBURBCABLE - Suburban Cable TU CO, Inc. | — | — | 0 |
| AS10650US | EXTREME-AS - Extreme Internet | — | — | 0 |
| AS10696US | MICROPATENT - MicroPatent | — | — | 0 |
| AS10761US | TRICETEL - Tricetel, Inc. | — | — | 0 |
| AS10763US | WEBSIDESTORY - Web Side Story, Inc. | — | — | 0 |
| AS10772US | SBIS-ASN-BLK-2 - AT&T Enterprises, LLC | — | — | 0 |
| AS10797US | MICH-COM - MICH.COM, INC. | — | — | 0 |
| AS10840US | CAHWNET - California Department of Technology | — | — | 0 |
| AS10855US | AUTO-BY-TEL - AUTO BY TEL | — | — | 0 |
| AS10860US | TOWERRECORDS-AS - MTS Inc | — | — | 0 |
| AS10891US | UTSWEB - Universal Tax Systems Inc | — | — | 0 |
| AS10933US | ATXNET-AS - Windstream Communications LLC | — | — | 0 |
| AS11010US | INVERO - Invero S. de R.L. de C.V. | — | — | 0 |
| AS11028US | BERKELEY-SETI-RESEARCH-CENTER - SETIATHOME | — | — | 0 |
| AS11130US | TC3NET-AS - The Computer Care Company Inc. | — | — | 0 |
| AS11162US | LN-CHILDRENSHOSPITAL-ASN - Los Nettos | — | — | 0 |
| AS11236US | FUSEMAIL - MailAnyone.net | — | — | 0 |
| AS11312US | YORKTEL-AS - York Telecom Corporation | — | — | 0 |
| AS11502US | NETTUNER-AS - NetTuner Corp. dba Webmasters.com | — | — | 0 |
| AS11526US | COGENT-11526 - Cogent Communications, LLC | — | — | 0 |
| AS11545US | AQNT-AS - aQuantive Inc. | — | — | 0 |
| AS11632US | ASPS-HQ-ASN01 - American Society of Plastic Surgeons | — | — | 0 |
| AS11646US | KIT-AS - Kansas Independent Telecommunications | — | — | 0 |
| AS11669US | MOVE-SITES - Move Sales, Inc. | — | — | 0 |