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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. | 218M | 24,645 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 643 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.7M | 1,307 |
| 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.
32,220 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 233 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 437 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.5M | 3,890 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 2,006 |
| AS701US | UUNET - Verizon Business | 43.6M | 993 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,364 |
| — |
| — |
| 0 |
| AS30693US | AS30693 - Eonix Corporation | — | — | 0 |
| AS30709US | REVEAL - REVEAL SYSTEMS INC | — | — | 0 |
| AS32033US | EXXONMOBIL-UTEC-AS - ExxonMobil Global Services Company | — | — | 0 |
| AS32060US | CHARTER-32060-NA - Charter Communications LLC | — | — | 0 |
| AS32089US | CHARTER-32089-NA - Charter Communications LLC | — | — | 0 |
| AS32137US | FTD-1 - FTD, LLC | — | — | 0 |
| AS32265US | AS-WAVE-SPARE-1 - Wave Broadband | — | — | 0 |
| AS32290US | RUSTNET - RUST COLLEGE | — | — | 0 |
| AS32418US | AS-IMAGINATIONET - Imagination Network LLC | — | — | 0 |
| AS32421US | BLCC - Level 3 Parent, LLC | — | — | 0 |
| AS32451US | TX-CLOUD - BigTech | — | — | 0 |
| AS32568US | AS-ASN-1 - Nasdaq, Inc. | — | — | 0 |
| AS32609US | CNS - Cooperative Network Services, LLC | — | — | 0 |
| AS32652US | ASHERECHICAGODC - HERE North America LLC | — | — | 0 |
| AS32791US | OCNL-AS32791 - Operations & Compliance Network LLC | — | — | 0 |
| AS32813US | APS-ASN - Fiserv Solutions, LLC | — | — | 0 |
| AS32935US | AS32935 - XC Networks, Ltd. | — | — | 0 |
| AS32940US | EVOCATIVE3 - Evocative, Inc. | — | — | 0 |
| AS33047US | AKAMAI-INSTART-ASN - Akamai Technologies, Inc. | — | — | 0 |
| AS33065US | NUVEUM - Nuveum Inc. | — | — | 0 |
| AS33073US | ISC-F-AS - Internet Systems Consortium, Inc. | — | — | 0 |
| AS33144US | NAVIGANTCONSULTING - Guidehouse Inc. | — | — | 0 |
| AS33188US | AUTOWC-01 - Auto Warehousing Company | — | — | 0 |
| AS33216US | ANALOG DEVICES - Analog Devices, Inc. | — | — | 0 |
| AS33269US | VONAGE-BUSINESS - Vonage Business Inc. | — | — | 0 |
| AS33291US | MANOV-ISP - Manov Investments, LLC | — | — | 0 |
| AS33336US | TIMEINC-TAMPA-ASN - Meredith Corp. | — | — | 0 |
| AS33357US | DS-NET - Teradyne, Inc. | — | — | 0 |
| AS33410US | MANDIANT-US2 - Mandiant, Inc. | — | — | 0 |
| AS33443US | AS-NGENX - Otava, LLC | — | — | 0 |
| AS33445US | YELP - Yelp! Inc. | — | — | 0 |
| AS33471US | ARI-CUSTOMERS - Automotive Rentals, Inc. | — | — | 0 |
| AS33514US | EXCS - Executive Corporate, Inc. | — | — | 0 |
| AS33531US | CARTARET-EQUITIES-PROD - Summit Securities Group LLC | — | — | 0 |
| AS33612US | TUMBLR - Yahoo Holdings Inc. | — | — | 0 |
| AS33624US | DHHS-OIG - U.S. Dept. of Health & Human Services - Office of Inspector General | — | — | 0 |
| AS33649US | SHENTEL - Shenandoah Cable Television LLC | — | — | 0 |
| AS33664US | CMCS - Comcast Cable Communications, LLC | — | — | 0 |
| AS33688US | SUMMITEIS-AS - SummitEIS | — | — | 0 |
| AS33735US | CRANE-DOWNTOWN-BGP - CHARLES L CRANE AGENCY Company | — | — | 0 |
| AS33742US | TELX-SFO - Telx | — | — | 0 |
| AS35845US | MEDIVATION-BGP - Pfizer Inc. | — | — | 0 |
| AS35920US | HOUIX - HOUIX | — | — | 0 |
| AS36066US | BIZLAND-ALC - Newfold Digital, Inc. | — | — | 0 |
| AS36166US | STEPAN-AS - Stepan Company | — | — | 0 |
| AS36211US | AMI-GLENDALE-AS - Applied Minds LLC | — | — | 0 |