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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 | 3,133 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 219M | 23,661 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 645 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,361 |
| 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.
32,363 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 236 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 439 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.8M | 3,911 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 45M | 2,046 |
| AS701US | UUNET - Verizon Business | 43.6M | 996 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.8M | 4,490 |
| 1.3K |
| — |
| 5 |
| AS36360US | ZINGOMEDIA - Zingo Media Group LLC | 1.3K | — | 5 |
| AS394218US | VXI - VXI Global Solutions, LLC | 1.3K | — | 4 |
| AS399377US | DESERTGATE - DesertGate Internet LLC | 1.3K | — | 4 |
| AS32751US | NUCLEARFALLOUT-SEA - Nuclearfallout Enterprises, Inc. | 1.3K | 4.1K | 6 |
| AS40692US | CIS-AZ-1 - Cochise Internet Services | 1.3K | 65.5K | 6 |
| AS22649US | AS-CODINGDIRECT - CodingDirect LLC | 1.3K | 4.1K | 6 |
| AS14727US | LONE-STAR-ISP - LONE STAR ISP | 1.3K | 65.5K | 3 |
| AS7915US | DAYTONA-STATE-COLLEGE - Daytona State College Inc | 1.3K | — | 5 |
| AS30039US | SN4ENDO - Smith and Nephew - Endoscopy | 1.3K | — | 5 |
| AS134521US | DIALPAD-AS-AP - Dialpad, Inc. | 1.3K | 1.5K | 11 |
| AS30307US | KSMNW-NA-ASN - Kasumi Networks NA LLC | 1.3K | 3 | 5 |
| AS22971US | SVHHSTOSF-NET - ST. VINCENT HOSPITAL OF THE HOSPITAL SISTERS OF THE THIRD ORDER OF ST. FRANCIS | 1.3K | — | 3 |
| AS546US | PARSONS-PGS-1 - Parsons Corporation | 1.3K | — | 5 |
| AS397725US | JNR-ELECTRONICS-1 - J AND R ELECTRONICS, INC. | 1.3K | — | 2 |
| AS1326US | ANSBB-ASNNET-1 - Verizon Business | 1.3K | — | 5 |
| AS397076US | ECI-ASN - ECi Software Solutions, Inc. | 1.3K | — | 3 |
| AS30664US | ELEMENT - Element Vehicle Management Services | 1.3K | — | 5 |
| AS399586US | OKALOOSA-COUNTY-FL - The County of Okaloosa | 1.3K | — | 5 |
| AS393351US | AMERISBANK - Ameris Bank | 1.3K | — | 5 |
| AS393387US | PORT-OF-TACOMA-ASN - Port of Tacoma | 1.3K | — | 2 |
| AS55185US | GWLT-ORL01 - Gainwell Technologies LLC | 1.3K | — | 5 |
| AS62631US | AURUS - Aurus Inc | 1.3K | — | 5 |
| AS54063US | MHHS-AS - Memorial Hermann Health System | 1.3K | — | 5 |
| AS32924US | GREENWAY-HEALTH - Greenway Health, LLC | 1.3K | — | 4 |
| AS26975US | TEXAS-HEALTH-RESOURCES - Texas Health Resources | 1.3K | — | 5 |
| AS30393US | BMLPROD2 - Bill Me Later | 1.3K | — | 2 |
| AS399145US | SUMO-SC - Sumo Capital LLC | 1.3K | — | 5 |
| AS20285US | INFINITE-CAMPUS-MN - Infinite Campus, Incorporated | 1.3K | — | 2 |
| AS396891US | FBG-1 - FireByte Group | 1.3K | — | 2 |
| AS11925US | RUESCH-CONSULTING - Ruesch Consulting, LLC | 1.3K | 65.5K | 3 |
| AS395367US | LWBB-333 - Lightwave Broadband LLC | 1.3K | 65.5K | 6 |
| AS16754US | TTL-31 - TRILLIUM TRADING LLC | 1.3K | — | 4 |
| AS22188US | SOLANTIC - Solantic Corporation | 1.3K | 65.5K | 6 |
| AS40638US | PASON-SYSTEMS-USA - Pason Systems USA Corp | 1.3K | — | 2 |
| AS400556US | LAGLESS-AS - Elcro Digital Services, LLC | 1.3K | — | 5 |
| AS954US | TS-1316-954 - TMTG | 1.3K | — | 5 |
| AS4390US | BELLATLANTIC-COM - Bell Atlantic, Inc. | 1.3K | 1 | 6 |
| AS400899US | CYCLONESERVERS-LLC - Cyclone Servers | 1.3K | 258 | 8 |
| AS53616US | ASYMPTOTE - ASYMPTOTE NETWORK, LLC | 1.3K | — | 2 |
| AS54572US | AS-ASN-2 - Nasdaq, Inc. | 1.3K | — | 3 |
| AS31867US | SCHWARTZNET - Schwartz Networks Limited Liability Company | 1.3K | 4.1K | 27 |
| AS25960US | PROPEL-CLOUD-01 - PropelCLOUD | 1.3K | — | 3 |
| AS54107US | ZYNGA-CORP - TAKE-TWO INTERACTIVE SOFTWARE, INC. | 1.3K | — | 5 |
| AS401077US | UMBRACORP - Umbra Industries Corporation | 1.3K | 1 | 3 |
| AS33683US | UIWTX - University of the Incarnate Word | 1.3K | — | 2 |
| AS20443US | VERGETEL-NETWORKS - VergeTel Networks LLC | 1.3K | 256 | 3 |