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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 |
| 768 |
| — |
| 3 |
| AS53621US | RADY-CHILDRENS-HOSPITAL-SAN-DIEGO - Rady Children's Hospital - San Diego | 768 | — | 3 |
| AS19186US | GMCHOSTING-01 - GMCHOSTING LLC | 768 | — | 3 |
| AS393797US | TRAC-750CRE - Trac Intermodal | 768 | — | 2 |
| AS209006US | WEBAIR-INTERNET-FRANCE WEBAIR INTERNET DEVELOPMENT COMPANY LLC | 768 | — | 2 |
| AS25855US | ETS-TELCO - ETS TELECOM | 768 | — | 2 |
| AS398382US | ABV-WC - AbbVie, Inc. | 768 | — | 3 |
| AS33426US | PEOPLEFLUENT-NETDIMENSIONS-INC - PeopleFluent | 768 | — | 3 |
| AS23354US | ECHOSTAR-CO - Echostar Purchasing Corporation | 768 | — | 3 |
| AS1325US | ANSBB-ASNNET-1 - Verizon Business | 768 | — | 3 |
| AS23095US | SHARP - SHARP HealthCare | 768 | — | 3 |
| AS46568US | HORMELFOODS - Hormel Foods Corporation | 768 | — | 3 |
| AS400383US | HUMBLE-BRIDGER-1 - Denson Technologies | 768 | 257 | 5 |
| AS44841US | Egressif Egressif LLC | 768 | 526.6K | 7 |
| AS200074US | ASSWH SN SOLUTIONS LLC | 768 | 1 | 4 |
| AS5779US | YAHOO-DNB - Yahoo Holdings Inc. | 768 | 1 | 4 |
| AS1004US | AMBYRE - Ambyre LLC | 768 | 3 | 6 |
| AS36737US | CONFI-AS - PeopleFinders | 768 | — | 3 |
| AS30330US | ARI-9000 - Automotive Rentals, Inc. | 768 | 2 | 5 |
| AS54803US | BT-AS-1 - Boys Town | 768 | — | 3 |
| AS18707US | INTELEMEDIA - Intelemedia Communications, Inc | 768 | — | 3 |
| AS399945US | AS-AWS - Aisanie Web Solution Inc | 768 | — | 3 |
| AS30196US | CAPSCENTERS - CAPS | 768 | — | 3 |
| AS399088US | NVENERGY-1 - Nevada Power Company | 768 | — | 3 |
| AS20139US | SSNC-MS - SS&C Technologies, Inc. | 768 | — | 3 |
| AS402035US | SGTLABS - Sergeant Laboratories, Inc | 768 | — | 3 |
| AS32971US | HCC-ASN - Howard Community College | 768 | — | 2 |
| AS54303US | FILMO - FILMON.COM, INC. | 768 | — | 3 |
| AS36145US | PHILLIPS-ACADEMY - Phillips Academy | 768 | — | 3 |
| AS54571US | COOLEY - Cooley LLP | 768 | — | 3 |
| AS40057US | GAAQUA - Georgia Aquarium, INC. | 768 | — | 3 |
| AS399594US | BLUESPRING-01 - Blue Spring Broadband | 768 | — | 3 |
| AS4374US | CKE-RESTAURANTS - CKE Restaurants Holdings, Inc. | 768 | — | 3 |
| AS398960US | CRYOFLESH - Cryoflesh Inc | 768 | 2 | 5 |
| AS395515US | NEOSYSTEMSLLC-USA - NeoSystems LLC | 768 | — | 3 |
| AS395926US | IISD-DC-01 - Ingham ISD | 768 | — | 2 |
| AS36523US | FCBT-AS - Farm Credit Bank of Texas | 768 | — | 3 |
| AS14643US | ACOSTA-ASN-01 - Acosta Sales & Marketing | 768 | — | 2 |
| AS46619US | FRG-RAD - Foundation Radiology Group | 768 | — | 3 |
| AS219474US | GRAV-AS GravHosting LLC | 768 | 1.3K | 5 |
| AS30172US | FAMC-1 - Citizens Bank, National Association | 768 | — | 3 |
| AS1072US | PAYWARD-ASN-01 - Payward, Inc. | 768 | — | 3 |
| AS399957US | QCDA-01 - Queens County District Attorney's Office | 768 | — | 3 |
| AS26805US | FHLBSF - Federal Home Loan Bank of San Francisco | 768 | — | 3 |
| AS395521US | AOCCONNECT - AOC Connect LLC | 768 | — | 3 |
| AS399946US | AURORA-LEO - Pacific Dataport Inc. | 768 | — | 3 |
| AS63081US | STOF-GAMING-TAMPA - Seminole Gaming | 768 | — | 2 |