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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 | 23,695 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 643 |
| 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.
32,143 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 | 3,820 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 1,994 |
| AS701US | UUNET - Verizon Business | 43.6M | 995 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,278 |
| — |
| — |
| 0 |
| AS396593US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS402430US | HOX - Hox | — | 256 | 1 |
| AS397615US | RTVI - RTVI | — | — | 0 |
| AS64268US | PEOPLENETCOMMUNICATIONS - PeopleNet Communications Corp | — | — | 0 |
| AS63444US | AS-SMARTERTRAVEL - TripAdvisor LLC | — | — | 0 |
| AS63380US | TRILLIUM-STAFFING - Trillium Staffing | — | — | 0 |
| AS397265US | DIGITALWORX - Digital Worx, Inc | — | — | 0 |
| AS397525US | ALPHAONE-AS - Alpha1Servers, LLC | — | — | 0 |
| AS397240US | SECURITYSERVICES - Vercara, LLC | — | — | 0 |
| AS18726US | SECUREWORKS-18726 - SecureWorks Corp | — | — | 0 |
| AS8123US | POLYBASE - Polybase | — | — | 0 |
| AS8089US | GRYPHONNETWORKS - GRYPHON NETWORKS CORP. | — | — | 0 |
| AS402932US | BCN-NET - BlueComet | — | 1 | 1 |
| AS10746US | TAI - Toshiba America, Inc. | — | — | 0 |
| AS10900US | EDUC-NET-PROV - Educational Network Provider | — | — | 0 |
| AS14185US | CBSK - CABLE ONE, INC. | — | — | 0 |
| AS200790US | BYTEFIZZ BYTEFIZZ LLC | — | 512 | 2 |
| AS10652US | NETSIDE - NetSide Corporation | — | — | 0 |
| AS396043US | TENNESSEE-WIRELESS-LLC - TENNESSEE WIRELESS LLC | — | 1 | 1 |
| AS8112US | VRIS-8112-8115 - Verizon Business | — | — | 0 |
| AS36262US | HASHTABLE-PREMIUM-TIER - HashTable, Inc. | — | 10 | 10 |
| AS3612US | DELL-BLK - Dell, Inc. | — | — | 0 |
| AS18657US | MEETUP - Meetup, Inc. | — | — | 0 |
| AS17273US | CTX-MORTGAGE - CTX Mortgage Company, LLC | — | — | 0 |
| AS17263US | TN-ASN-NM - Tarakona Networks, LLC | — | — | 0 |
| AS19517US | VISUAL-LINK-INOC - Visual Link | — | — | 0 |
| AS19573US | PACIFIC-NATIONAL - PACIFIC NATIONAL BANK | — | — | 0 |
| AS19501US | TTURWN - Texas Tech University | — | — | 0 |
| AS13425US | JUNO-DC-1 - Juno Online Services, Inc. | — | — | 0 |
| AS396581US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS12016US | SDNBROS - SDNBROS LLC | — | — | 0 |
| AS12064US | ASN-CXA-HR-12064-CBS - Cox Communications Inc. | — | — | 0 |
| AS11890US | IVANET-LA - iBasis, Inc. | — | — | 0 |
| AS218794US | XORIST James Jones | — | 1 | 1 |
| AS13881US | CIIS - California Institute of Integral Studies | — | — | 0 |
| AS11413US | IHERB-AS-IHERB-NETWORKS - IHERB INC | — | — | 0 |
| AS11154US | SWS - Hilltop Securities Inc. | — | — | 0 |
| AS212996US | ZEROAV-CUST Zero Attack Vector LLC | — | 65.8K | 3 |
| AS13507US | KMARTCORPORATION - Sears Holdings Corporation | — | — | 0 |
| AS13644US | TMO-METRO - T-Mobile USA, Inc. | — | — | 0 |
| AS11150US | LIGHTBOARD CORP - Lightboard Realty | — | — | 0 |
| AS402004US | RS - Rui Sun, Sole Proprietorship | — | 2 | 2 |
| AS11116US | WATCHCOMM-IN - Watch Communications | — | — | 0 |
| AS8170US | MICROAGE - MicroAge Computer Centers, Inc. | — | — | 0 |
| AS10492US | CACMEDIANET - CAC-MediaNet | — | — | 0 |
| AS10451US | WARPDRIVE - Warpdrive Networks | — | — | 0 |