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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 |
| 3.1K |
| 4.1K |
| 6 |
| AS398297US | FROG - FROG HOLDINGS, LLC | 3.1K | — | 3 |
| AS54084US | REGION14ESC - REGION 14 EDUCATION SERVICE CENTER | 3.1K | — | 2 |
| AS54900US | ALIANZA-INC - Alianza Inc. | 3.1K | 5 | 17 |
| AS16931US | GLOBAL-PAYMENTS-1 - Global Payments, Inc. | 3.1K | — | 10 |
| AS63254US | NASSAU-COUNTY-NY - Department of Information Technology | 3.1K | — | 5 |
| AS13700US | NEXUSWAVE - NexusWave | 3.1K | — | 7 |
| AS63210US | FC2-INC-2 - FC2 Inc | 3.1K | 256 | 6 |
| AS14561US | ASSOCIATED-BANK-INTERNET - Associated Banc-Corp | 3.1K | — | 6 |
| AS53861US | AS-KGIX - KGIX | 3.1K | 65.5K | 3 |
| AS64261US | ASN-CVILLE-FIBERCOM - City of Cartersville | 3.1K | — | 7 |
| AS394037US | RIOCITIES-INTERNET - RIO CITIES | 3.1K | 4.4K | 8 |
| AS400387US | FLYING-BULL-INTERNET - Flying Bull Internet, LLC | 3.1K | — | 4 |
| AS23022US | DSU - DELAWARE STATE UNIVERSITY | 3.1K | — | 5 |
| AS14397US | AS-DNS - 1st Class Hosting, LLC | 3.1K | — | 12 |
| AS26038US | ELVT-CLOUD-AND-CONNX - Elevate Technology Group | 3.1K | — | 6 |
| AS22147US | PACKETSURGE - Open Contributors Corporation for Advanced Internet Development, Inc. | 3.1K | 274 | 14 |
| AS40663US | INTERNET-SPEECH-AND-PRIVACY-LLC - IncogNet LLC | 3.1K | 27 | 24 |
| AS11747US | MK-SYSTEMSUSA-INC-01 - MK Systems USA Inc. | 3.1K | — | 2 |
| AS394135US | SECURITAS-ELECT-SECURITY - Securitas Electronic Security, Inc. | 3.1K | — | 11 |
| AS17279US | KANSAS-BROADBAND-INTERNET - Kansas Broadband Internet, Inc. | 3.1K | — | 3 |
| AS394102US | NETFIRE-MSTR01 - NetFire, LLC | 3.1K | 65.5K | 7 |
| AS47022US | WILSON-TELEPHONE-COMPANY-INC - Wilson Telephone Company Inc | 3.1K | — | 5 |
| AS27631US | PANGAEA - PANGAEA | 3.1K | — | 12 |
| AS32270US | LDTEL - LD Telecommunications, Inc. | 3.1K | 65.5K | 3 |
| AS399864US | FLIXOUT - Flixout | 3.1K | — | 3 |
| AS395505US | IMANAGE - iManage, LLC | 3.1K | — | 11 |
| AS63222US | CARNIVALCORP-ASN1 - Carnival Corporation | 3.1K | — | 5 |
| AS29886US | ESVBA-ASN1 - Eastern Shore of Virginia Broadband Authority | 3.1K | 65.5K | 5 |
| AS395446US | BRIGGS-STRATTON - Briggs & Stratton Corporation | 3.1K | — | 5 |
| AS16887US | AETHERNETSANANTONIO - Aethernet LLC | 3.1K | — | 12 |
| AS955US | LSHIY - LSHIY LLC | 3.1K | 131.1K | 28 |
| AS395532US | 1P-WSS - Web Site Source | 3.1K | — | 11 |
| AS396860US | MORNET-COMMUNICATIONS - MORnet Communications, LLC | 3.1K | — | 8 |
| AS398173US | SEAGATE-USA-CA-2 - Seagate Technology LLC | 3.1K | — | 12 |
| AS21993US | SCHLAGE-AS - Schlage Lock Company LLC | 3.1K | — | 9 |
| AS397298US | PEOPLES-TELECOM-LLC - Peoples Telecommunications LLC | 3.1K | — | 11 |
| AS40154US | VRC-AS - Virtual Radiologic Corporation | 3.1K | — | 12 |
| AS12001US | AS-PNN-NET - Point North Networks, Inc. | 3.1K | — | 12 |
| AS13713US | ARCOT - Avago Technologies U.S. Inc. | 3.1K | — | 12 |
| AS22097US | KLGATES - K&L Gates, LLP | 3.1K | — | 9 |
| AS18938US | PRESSGANEY - PRESS GANEY ASSOCIATES INC | 3.1K | — | 8 |
| AS40631US | MASTEC-PRIVATE - Mastec, Inc | 3.1K | — | 7 |
| AS55142US | NEWBREAK-COMMUNICATIONS-VICKSBURG - Newbreak Management Co. LLC | 3.1K | — | 2 |
| AS393951US | HORTONS-TV - Hortons TV & Electronics Inc | 3.1K | — | 6 |
| AS1432US | AC-AS-1 - Albion College | 3.1K | — | 2 |
| AS1411US | CHRISTOPHER-NEWPORT-UNIVERSITY - Christopher Newport University | 3.1K | — | 9 |