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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 | 3,140 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 211.2M | 21,178 |
| 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 | 3,667 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.7M | 1,946 |
| AS701US | UUNET - Verizon Business | 43.6M | 999 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,371 |
| 768 |
| — |
| 3 |
| AS63397US | WILLETT - Willett Advisors LLC | 768 | — | 3 |
| AS40177US | THE-INSTITUTES - The Institutes | 768 | — | 2 |
| AS397535US | WNMU-ASN - Western New Mexico University | 768 | — | 3 |
| AS46561US | STEELSCAPE - STEELSCAPE, LLC | 768 | — | 3 |
| AS397809US | SDC-ASHBURN-EQX - Huron Consulting Group, Inc. | 768 | — | 3 |
| AS23019US | BGP1-BOH - BANK OF HAWAII | 768 | — | 3 |
| AS395972US | SCHREIBERFOODS - Schreiber Foods, Inc. | 768 | — | 3 |
| AS33499US | LHP-NET - AHS Management Company, Inc. | 768 | — | 3 |
| AS63314US | MSFT - Microsoft Corporation | 768 | — | 2 |
| AS23067US | AS23067 - Orange County, Florida | 768 | — | 3 |
| AS32189US | SAGRADO - Universidad del Sagrado Corazon | 768 | — | 3 |
| AS400608US | PETDW-MERGECO-01 - Bhp Billiton Petroleum (deepwater) Inc. | 768 | — | 3 |
| AS397398US | BREWSTER-ASN-01 - Brewster Academy | 768 | — | 2 |
| AS54370US | SKYWEST - SKYWEST AIRLINES, INC. | 768 | — | 3 |
| AS53343US | SCN - sc Network | 768 | 1.2K | 9 |
| AS64243US | MPTC - Moraine Park Technical College | 768 | — | 3 |
| AS394448US | DXFEED - Devexperts Inc | 768 | — | 3 |
| AS4566US | CYRACOM-INTERNATIONAL-ASN - CYRACOM INTERNATIONAL INC | 768 | — | 3 |
| AS53554US | NCUA-GOV---NATIONAL-CREDIT-UNION-ADMINISTRATION - National Credit Union Administration | 768 | — | 3 |
| AS396410US | CODE42-INCYDR - Code 42 Software | 768 | — | 2 |
| AS2562US | TI-US-INTL - Texas Instruments Incorporated | 768 | — | 3 |
| AS29912US | CITIZENS-PROPERTY-INSURANCE-CORPORATION - Citizens Property Insurance Corporation | 768 | — | 3 |
| AS33288US | DASH FT - Dash Financial Technologies LLC | 768 | — | 3 |
| AS10979US | ICWGROUP - INSURANCE COMPANY OF THE WEST | 768 | — | 3 |
| AS400346US | APOG-ECKERD - Apogee Telecom Inc. | 768 | — | 2 |
| AS27232US | OOMA INC - OOMA ENTERPRISE - Ooma, Inc. | 768 | — | 3 |
| AS34553US | NATHANSALES - Packetframe | 768 | 2 | 5 |
| AS10899US | CARIS LIFE SCIENCES - Caris Life Sciences | 768 | — | 2 |
| AS63073US | UT-MAIN - The University of Tampa | 768 | — | 3 |
| AS393245US | YAHOO-SWB - Yahoo Holdings Inc. | 768 | 1 | 4 |
| AS15073US | BSC-BRANCHOFFICE02 - Blue Shield of California | 768 | — | 3 |
| AS31883US | TIM-2300 - Thornburg Investment Management Inc. | 768 | — | 3 |
| AS399301US | BANKSITESERVICES - The Forms Group | 768 | — | 3 |
| AS55263US | UNITEDLEX - UnitedLex Corporation | 768 | — | 3 |
| AS400215US | SAMBANOVA - Sambanova Systems, Inc. | 768 | — | 3 |
| AS54224US | ALPINEBK-ALPINE-BAN - Alpine Banks of Colorado | 768 | — | 2 |
| AS33160US | OLDREPUBLICTITLEAS - OLD REPUBLIC NATIONAL TITLE INSURANCE CO. | 768 | — | 3 |
| AS46796US | SLAPPEYTEL-NET - Slappey Telephone, Inc. | 768 | — | 3 |
| AS393248US | NISD-1 - Northside Independent School District | 768 | — | 3 |
| AS7868US | DATA-LIFE - Data Life Associates, Inc. | 768 | — | 2 |
| AS395540US | NITEL-AS395540 - Hypercore Networks, Inc | 768 | — | 3 |
| AS1422US | MEDIA6-ASN - Media6degrees | 768 | — | 3 |
| AS30644US | PATH-NETWORK-BYOIP - Path Network, Inc. | 768 | — | 3 |
| AS54334US | SWIFTNODE-LLC - Swiftnode LLC | 768 | 3 | 6 |
| AS400733US | PDS-RW-ASN-01 - Pari Data Systems Inc. | 768 | — | 3 |
| AS46504US | IDIT - Bonds.com, LLC | 768 | — | 3 |