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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. | 211.2M | 21,174 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 113.7M | 639 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,241 |
| 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 | 373 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 49.3M | 3,656 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.7M | 1,940 |
| AS701US | UUNET - Verizon Business | 43.6M | 1,000 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,379 |
| 1.5K |
| — |
| 6 |
| AS33355US | LOCE - Locenet LLC | 1.5K | — | 6 |
| AS397367US | CRANBROOK-01 - Cranbrook Educational Community | 1.5K | — | 2 |
| AS32381US | GOOGLE CLOUD NETWORKING - Google Access LLC | 1.5K | 3 | 6 |
| AS63238US | UPTEL - Upchurch Telecom & Data, Inc. | 1.5K | — | 3 |
| AS399457US | NWTEL-CATV - NEW WINDSOR TELEPHONE CO | 1.5K | — | 5 |
| AS13925US | NULLROUTE - Null Route Networks | 1.5K | 3 | 6 |
| AS57578US | MISAKA-CIS-AS Misaka Network, Inc. | 1.5K | 139.3K | 20 |
| AS46202US | MICHAELS-ATT-DS3 - Michaels Stores, Inc. | 1.5K | — | 6 |
| AS25751US | VALUECLICK - Conversant, Inc. | 1.5K | 48 | 8 |
| AS54187US | ECINET2 - EZE Castle Integration Inc. | 1.5K | 65.5K | 5 |
| AS26558US | FREEWHEEL - Freewheel Media Inc. | 1.5K | 2 | 8 |
| AS17203US | BMTC-01 - Beresford Municipal Telephone Company | 1.5K | — | 6 |
| AS397391US | HON-ASN - Hop One Networks LLC | 1.5K | 65.5K | 9 |
| AS398415US | EPEC - EPEC Technologies, LLC | 1.5K | 4.1K | 4 |
| AS27282US | ASNIC - North Idaho College | 1.5K | 1 | 4 |
| AS7358US | DNB-GLOBAL - The Dun & Bradstreet Corporation | 1.5K | — | 6 |
| AS27237US | AHSNET-01 - Ardent Health Services, Inc. | 1.5K | — | 6 |
| AS394322US | CHS-AS1 - Convey Health Solutions, Inc. | 1.5K | — | 5 |
| AS26234US | VERIF-MSO-PC - VeriFone Inc. | 1.5K | — | 5 |
| AS11928US | HBGUSA - Hachette Book Group, Inc. | 1.5K | — | 5 |
| AS63370US | GSOC-63370 - Georgia System Operations, Corporation | 1.5K | — | 6 |
| AS64260US | SRDF - SRDF, Inc. | 1.5K | 65.5K | 5 |
| AS13875US | AS13875-MX-FIBER - MxFiber LLC | 1.5K | — | 6 |
| AS54968US | VOM-NOC - Data Pro of Sonoma and Vom.com | 1.5K | — | 6 |
| AS17040US | SEATTLE-TIMES - The Seattle Times | 1.5K | — | 6 |
| AS32114US | NETWAVE - NETWAVE BROADBAND INC | 1.5K | 65.5K | 4 |
| AS397832US | EPF-CO - Arconic Inc. | 1.5K | — | 3 |
| AS11791US | SLC-IDENT-AS - IdenTrust | 1.5K | — | 2 |
| AS394265US | BOX-CORP - Box.com | 1.5K | 1 | 7 |
| AS199152US | VDC-USA Virtual Data Center Inc | 1.5K | 651.3K | 34 |
| AS399374US | LERU - Le-Ru Telephone Company | 1.5K | — | 6 |
| AS32358US | VENTURACOUNTY - County of Ventura | 1.5K | — | 6 |
| AS396162US | ANICO-3030 - American National Insurance Company | 1.5K | — | 6 |
| AS19809US | ASNBLK-VTLA2 - NTT Global Networks Incorporated | 1.5K | — | 6 |
| AS397311US | WTV1951 - Zito Media | 1.5K | — | 5 |
| AS6337US | HIWAAY - HIWAAY INFORMATION SERVICES, INC. | 1.5K | — | 2 |
| AS62902US | AS-ASPHERE - Ankr PBC | 1.5K | 74K | 9 |
| AS7191US | CENTURYLINK-PRISM - CenturyLink Communications, LLC | 1.5K | — | 2 |
| AS27461US | POMEROY-ASN - Pomeroy Technologies LLC | 1.5K | — | 6 |
| AS20437US | AS20437 - Nationwide Mutual Insurance Company | 1.5K | — | 4 |
| AS62533US | AIMS-VTP-US - Ascendum-IMS, LLC | 1.5K | — | 5 |
| AS54697US | EVERBANK-NA - EverBank, N.A. | 1.5K | — | 6 |
| AS33001US | CSM-NY-AS - Cravath, Swaine & Moore LLP | 1.5K | — | 6 |
| AS25680US | EMUNET-HBGVA - Eastern Mennonite University | 1.5K | — | 6 |
| AS36020US | WEATHER-COMPANY - The Weather Company | 1.5K | — | 6 |
| AS26669US | HEADLAND-COMMUNICATIONS - Headland Communications | 1.5K | — | 6 |