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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 | 3,138 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 211.1M | 21,094 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 113.7M | 638 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,247 |
| 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 | 398 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 49.3M | 3,709 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.7M | 1,959 |
| AS701US | UUNET - Verizon Business | 43.6M | 1,000 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,423 |
| 15168 - Media Breakaway, LLC |
| — |
| — |
| 0 |
| AS15186US | FUTUREGRID - Indiana University | — | — | 0 |
| AS15308US | B-A-C-S - Verizon Business | — | — | 0 |
| AS15334US | RESPONSYS - Responsys Inc. | — | — | 0 |
| AS16396US | PIGGLY-WIGGLY-CAROLINA - Piggly Wiggly Carolina Company | — | — | 0 |
| AS16445US | M2NGAGE2 - M2ngage Telecommunications II Corp. | — | — | 0 |
| AS16472US | AS16472 - Cisco Webex LLC | — | — | 0 |
| AS16537US | VENDIO - Vendio Services, Inc. | — | — | 0 |
| AS16613US | SYNERGYBROADBAND-IL-01 - SYNERGY BROADBAND | — | — | 0 |
| AS16632US | EDLIO - Edlio Inc | — | — | 0 |
| AS16675US | CLEARDATA - Clear DATA Networks Inc. | — | — | 0 |
| AS16690US | ANADARKO - Occidental Petroleum Corporation | — | — | 0 |
| AS16748US | COMCAST-TELECOMM-4 - Comcast Cable Communications, LLC | — | — | 0 |
| AS16795US | VI - Sangoma US Inc. | — | — | 0 |
| AS16804US | ARCDIGITALNET - Arcdigital LLC | — | — | 0 |
| AS16845US | KCI-ASN - Khera Communications, Inc. | — | — | 0 |
| AS16892US | GO-DADDY-COM-LLC - GoDaddy.com, LLC | — | — | 0 |
| AS16893US | TZOO - Travelzoo Inc. | — | — | 0 |
| AS16945US | CIMCO4 - First Communications LLC | — | — | 0 |
| AS16953US | DELUXE-MEDIA-INC - Deluxe Media | — | — | 0 |
| AS17074US | SETPARK-L3 - Saul Ewing LLP | — | — | 0 |
| AS17111US | MEGAPATH4-US - GTT Americas, LLC | — | — | 0 |
| AS17156US | ZIXI - Zix Corporation | — | — | 0 |
| AS17171US | QAS-1720 - Quantum Aviation Solutions, Inc. | — | — | 0 |
| AS17231US | ATT-CERFNET-BLOCK - AT&T Enterprises, LLC | — | — | 0 |
| AS17277US | CHARTER-17277-NA - Charter Communications LLC | — | — | 0 |
| AS17314US | REDHAT-HOSTED - Red Hat, Inc. | — | — | 0 |
| AS17347US | PEPCO - Potomac Electric Power Company | — | — | 0 |
| AS18510US | MDP-ASN3551 - Midwest Data Processing, Inc. | — | — | 0 |
| AS18617US | TICKETMASTER-AWS-VIRGINIA - Live Nation Entertainment, Inc. | — | — | 0 |
| AS18680US | AKAMAI-AS - Akamai Technologies, Inc. | — | — | 0 |
| AS18771US | 3DS-BB01 - 3ds Communications LLC | — | — | 0 |
| AS18774US | ARIN-US-ASN-1 - Boerboel LLC | — | — | 0 |
| AS18843US | CHI-MANAGEMENT - Crossmark | — | — | 0 |
| AS18910US | BIG-SANDY-BROADBAND-INC - Shenandoah Cable Television LLC | — | — | 0 |
| AS18939US | DBC-SALT-LAKE - Intercontinental Exchange, Inc. | — | — | 0 |
| AS18945US | VINS-AS-5 - Flexential Colorado Corp. | — | — | 0 |
| AS18989US | LIFELOCK-1 - Gen Digital Inc. | — | — | 0 |
| AS19000US | CBSI-4 - CBS Interactive Inc. | — | — | 0 |
| AS19020US | COF-EQX-WEST-O365 - Capital One Financial Corporation | — | — | 0 |
| AS19027US | XO-ASN11 - Verizon Business | — | — | 0 |
| AS19072US | OD-DA - Office Depot, LLC | — | — | 0 |
| AS19100US | GPSAC - General Pacific, Inc. | — | — | 0 |
| AS19274US | SYSTEM-66 - System Techniques | — | — | 0 |
| AS19371US | ENOVATEL-1 - Hawaiian Telcom Services Company, Inc. | — | — | 0 |
| AS19440US | AICENT - Aicent Inc. | — | — | 0 |
| AS19484US | SBCASI-AKRON-OH-COVLIL - Wireless Maritime Services, LLC | — | — | 0 |