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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) | 227.5M | 3,133 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 218M | 23,999 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 644 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.6M | 1,299 |
| 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.
32,154 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 231 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 437 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.5M | 3,882 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 1,990 |
| AS701US | UUNET - Verizon Business | 43.6M | 995 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,318 |
| VISER - Viser |
| 4.1K |
| — |
| 1 |
| AS398475US | DRILLINGINFO-VIRGINIA - Drilling Info Inc. | 4.1K | — | 3 |
| AS16489US | WEBSTER - Webster University | 4.1K | — | 9 |
| AS400205US | INFONETWORKS - InfoNet | 4.1K | — | 7 |
| AS3401US | SEATTLE - City of Seattle, Dept. of Admin. Services | 4.1K | — | 3 |
| AS22247US | LETOURNEAUUNIVERSITY - LeTourneau University | 4.1K | — | 1 |
| AS26859US | TELENET-INTL - Fortis Communications, Inc. | 4.1K | — | 1 |
| AS25915US | WSWHE-NET - WASHINGTON SARATOGA WARREN HAMILTON & ESSEX BOCES | 4.1K | 16 | 2 |
| AS16679US | BSD403-ASN-111 - BETHEL SCHOOL DISTRICT 403 | 4.1K | — | 1 |
| AS53638US | ALACHUA-COUNTY-BOCC - Alachua County BOCC | 4.1K | — | 1 |
| AS54417US | STIMULUS-TECHNOLOGIES - Stimulus Technologies | 4.1K | — | 13 |
| AS13953US | SVCC-EDU - Sauk Valley Community College | 4.1K | 16 | 2 |
| AS397824US | ALASKA-PERMANENT-FUND-CORPORATION-AS-01 - Alaska Permanent Fund Corporation, an instrumentality of the State of Alaska | 4.1K | 2 | 4 |
| AS7962US | EXISNET - EXISNET INC | 4.1K | — | 1 |
| AS395098US | RFIH-NET1 - Retail Finance International Holdings, Inc. | 4.1K | — | 10 |
| AS40385US | SAINT-MARYS-CA-AS - Saint Mary's College of California | 4.1K | — | 1 |
| AS400514US | ESPACE-NETWORKS - ESpace Networks | 4.1K | — | 14 |
| AS395945US | HBPW - Holland Board of Public Works | 4.1K | 65.5K | 5 |
| AS7384US | INTUIT - Intuit Inc. | 4.1K | — | 16 |
| AS55260US | POLK-SCHOOL-DISTRICT - Polk School District | 4.1K | — | 16 |
| AS26862US | FULLNETINC - FULLNET INC | 4.1K | — | 16 |
| AS6994US | FASTMETRICS - Fastmetrics | 4.1K | — | 1 |
| AS15055US | YOURCOLO-ASN-1 - YourColo LLC | 4.1K | — | 1 |
| AS1830US | GULF-COAST-STATE-COLLEGE - Gulf Coast State College | 4.1K | — | 2 |
| AS399461US | HOSTSNAP-NETWORK - HostSNAP LLC | 4.1K | — | 6 |
| AS19967US | JSJ-CORP - JSJ Corporation | 4.1K | — | 1 |
| AS62825US | WTC-40-AS - Walnut Communications | 4.1K | — | 16 |
| AS588US | DIRECTRON - Headquarters, USAISC | 4.1K | — | 1 |
| AS36396US | SCHOOLCRAFTCOLLEGE - Schoolcraft College | 4.1K | — | 1 |
| AS399851US | MCN - Mapleton City | 4.1K | 65.5K | 5 |
| AS54521US | THE-NATIONAL-GALLERY-OF-ART - National Gallery of Art | 4.1K | — | 1 |
| AS396334US | ORU-ASN - Oral Roberts University | 4.1K | — | 9 |
| AS35979US | WESTPHALIA-01 - WBI | 4.1K | — | 1 |
| AS15113US | AMX-LLC-AS - Harman International Industries Inc. | 4.1K | 4 | 20 |
| AS23027US | BOINGO - Boingo Wireless, Inc. | 4.1K | — | 1 |
| AS40197US | NBS-72 - Nextlink Broadband | 4.1K | — | 1 |
| AS23251US | BRIDGESTONE-AMERICAS - Bridgestone Americas, Inc. | 4.1K | — | 16 |
| AS40772US | VELOCITER-WIRELESS-INC - ezWave Inc. | 4.1K | — | 16 |
| AS31869US | LL-BEAN - LL Bean | 4.1K | — | 6 |
| AS18826US | AS18826 - 1966 | 4.1K | — | 1 |
| AS54979US | ZEECON - Zeecon Wireless Internet L.L.C. | 4.1K | — | 1 |
| AS26481US | REBEL-HOSTING - Rebel Hosting | 4.1K | — | 16 |
| AS25862US | ISNX - ISNX LLC | 4.1K | — | 16 |
| AS395368US | NTT-GLOBAL-DATA-CENTERS-AMERICA-INC - NTT Global Data Centers Americas, INC. | 4.1K | — | 1 |
| AS36861US | AS36861 - RWJBarnabas Health, Inc. | 4.1K | — | 8 |
| AS12234US | UUNET-INT - Verizon Business | 4.1K | — | 7 |
| AS46759US | CIA-ASN - Culinary Institute of America | 4.1K | — | 1 |