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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 |
| — |
| 4 |
| AS395911US | MDLIVE-1 - Maryland Live! Casino | 1.3K | — | 5 |
| AS22208US | CTC-AS - Chicago Trading Company | 1.3K | 65.8K | 8 |
| AS400210US | WACO-WIFI-LLC - Waco Wifi llc | 1.3K | — | 3 |
| AS29901US | MECK-COUNTY-INET - Mecklenburg County, NC | 1.3K | — | 2 |
| AS395777US | AUBFIBER - ATHENS UTILITIES BOARD | 1.3K | 65.5K | 3 |
| AS23539US | TCF-NETWORK-01 - Tel-Star Communications Of Florida, Inc. | 1.3K | — | 4 |
| AS33248US | COE-AS - City of Evanston, Illinois | 1.3K | — | 5 |
| AS29851US | WARBURGPINCUS - E.M. Warburg, Pincus & Co. Inc. | 1.3K | — | 5 |
| AS32771US | DNSIMPLE - DNSimple Corporation | 1.3K | 9 | 14 |
| AS40042US | SUFFOLK-COUNTY-GOVERNMENT - Suffolk County Government | 1.3K | — | 4 |
| AS62476US | DANC - Development Authority of the North Country | 1.3K | — | 3 |
| AS30104US | ABCC-30104 - GTel Networks inc. | 1.3K | — | 4 |
| AS46282US | AVIALL-SERVICES-INC - Boeing Distribution, Inc. | 1.3K | — | 5 |
| AS53654US | TJF-HOLDINGS - TJF HOLDINGS | 1.3K | 256 | 3 |
| AS398373US | SERVERDESTROYERS - Server Destroyers LLC | 1.3K | — | 2 |
| AS54845US | PHX-DATACENTER - Crexendo Business Solutions, Inc. | 1.3K | — | 5 |
| AS396283US | ASXBAR7 - Xbar7 Communications, LLC | 1.3K | — | 2 |
| AS398424US | QORVO-DC - Qorvo US, Inc | 1.3K | — | 5 |
| AS11713US | GBGDC-IP1 - Granite Block Global Data Center, Inc | 1.3K | — | 5 |
| AS26144US | FISERV-EFT - Fiserv Solutions, LLC | 1.3K | — | 4 |
| AS22157US | AS1-A2W - mGage | 1.3K | — | 5 |
| AS54559US | ALGH-DCS - COUNTY OF ALLEGHENY | 1.3K | — | 4 |
| AS18888US | AS-ZILLOW - ZILLOW, INC. | 1.3K | 1 | 6 |
| AS401669US | CLOUDCENTRX - cloudCENTRX | 1.3K | — | 3 |
| AS393806US | JOHNSON-COUNTY-KANSAS - Johnson County Kansas | 1.3K | — | 4 |
| AS21726US | RGTS-JFK - Convergeone Unified Technology Solutions, Inc. | 1.3K | — | 5 |
| AS10924US | DLAS-ASN - Division of Legislative Automated Systems | 1.3K | — | 2 |
| AS204769US | VPSVirtuoso DigiRDP, LLC | 1.3K | 1 | 6 |
| AS19281US | QUAD9-AS-1 - Quad9 | 1.3K | 1 | 6 |
| AS17215US | AMEREN-AS3 - Ameren Corp. | 1.3K | — | 5 |
| AS211739US | NewsTech-EMEA Dow Jones & Company, Inc. | 1.3K | — | 5 |
| AS40694US | TEKWAV - TekWav | 1.3K | — | 2 |
| AS30229US | SE2-BGP-AS - SE2, Inc | 1.3K | — | 5 |
| AS32149US | WEBTEAM - WEBTEAM, INC | 1.3K | — | 5 |
| AS398549US | ZERO-ATTACK-VECTOR - Zero Attack Vector LLC | 1.3K | 25.4K | 52 |
| AS36475US | ZACKS-AS-1 - Zacks Investment Research Inc. | 1.3K | — | 4 |
| AS46946US | TJU-46946 - Thomas Jefferson University | 1.3K | — | 5 |
| AS33593US | HARRIS-BANK - Harris Trust & Savings Bank | 1.3K | — | 5 |
| AS55265US | VITAS-HOSPICE-SMY-SCOTTS - Vitas Healthcare Corporation | 1.3K | — | 4 |
| AS393312US | TFX-ASN - TELEFLEX INCORPORATED | 1.3K | — | 4 |
| AS19403US | SPIRIT-AEROSYSTEMS - Spirit AeroSystems, Inc | 1.3K | — | 4 |
| AS11582US | SMART-CITY-SLCC - SMART CITY NETWORKS, LIMITED PARTNERSHIP | 1.3K | — | 2 |
| AS40795US | COUNTY-OF-LAKE - County of Lake | 1.3K | — | 2 |
| AS33352US | CNF-BLOCK - GM Financial | 1.3K | — | 4 |
| AS31902US | OTS - Open Technology Solutions, LLC | 1.3K | — | 5 |
| AS15277US | HILLINTL-USMRL1 - Hill International, Inc. | 1.3K | — | 5 |