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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 | 24,346 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 644 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.6M | 1,303 |
| 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.
32,168 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 233 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 437 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.5M | 3,885 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 1,996 |
| AS701US | UUNET - Verizon Business | 43.6M | 994 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,357 |
| 512 |
| — |
| 1 |
| AS30367US | STRATEGIC-VALUE-PARTNERS - Strategic Value Partners | 512 | — | 2 |
| AS64213US | AS-ERCELITE - ERC Broadband | 512 | 1 | 3 |
| AS62507US | CHV-COH - City of Hampton, Virginia | 512 | — | 2 |
| AS13510US | BAYSTATEHEALTH - Baystate Health, Inc. | 512 | — | 2 |
| AS17032US | QUALCOMM-QWBS-SD - Qualcomm, Inc. | 512 | — | 2 |
| AS26372US | VERMONTINFORMATION - Vermont Information Processing | 512 | — | 2 |
| AS30564US | LSUS - Louisiana State University in Shreveport | 512 | — | 2 |
| AS40207US | AS40207 - Cape Cod Healthcare Inc. | 512 | — | 2 |
| AS27360US | KWIKTRIP-AS - Kwik Trip Inc. | 512 | 16 | 3 |
| AS63165US | CCPS-17ASN - Clayton County Public Schools | 512 | — | 2 |
| AS400447US | APOG-WAYLAND - Apogee Telecom Inc. | 512 | — | 2 |
| AS401075US | SKY-SPARK - Skyspark Hosting LLC | 512 | 256 | 3 |
| AS40710US | CLC-98-ILLINOIS - College of Lake County | 512 | — | 2 |
| AS398485US | DFINITY-NET - DFINITY USA Research, LLC | 512 | 4.1K | 5 |
| AS398574US | COMMONWEALTH-CHARTER-ACADEMY - Commonwealth Charter Academy | 512 | — | 2 |
| AS394623US | AHA-MH-BGP - American Hospital Association | 512 | — | 2 |
| AS40889US | GREYSTONE - Greystone IT, Inc. | 512 | — | 2 |
| AS400036US | SAC-01 - Seattle Arena Company, LLC | 512 | — | 2 |
| AS19670US | CUSTOMCOMPUTERSPECIALISTS - Custom Computer Specialists, Inc. | 512 | — | 2 |
| AS27634US | MICRODG-AS - Microdynamics Corporation | 512 | — | 2 |
| AS54787US | MYRIAD-SSF-01 - Myriad Genetics, Inc. | 512 | — | 2 |
| AS26943US | YOUR-ORG-INC-EURO - YOUR.ORG, INC. | 512 | 65.5K | 4 |
| AS30403US | EL-ROCHESTER-NY - Ellucian Company LP | 512 | — | 2 |
| AS773US | PARSONS-PGS-2 - Parsons Corporation | 512 | — | 2 |
| AS36569US | KMBC-TV - Hearst-Argyle Television, Inc. | 512 | — | 2 |
| AS395436US | HUH-ASN-01 - Howard University Hospital | 512 | — | 2 |
| AS36578US | WISN-TV - Hearst-Argyle Television, Inc. | 512 | — | 2 |
| AS53575US | AUSTIN-COLLEGE - Austin College | 512 | — | 2 |
| AS399795US | INFINITY-TECH-KC1 - Infinity Technology Services LLC | 512 | — | 1 |
| AS393516US | EDMAMERICASASN - EDM Americas | 512 | — | 2 |
| AS35851US | BANKERSBANKOFKANSAS - Bankers' Bank of Kansas | 512 | — | 2 |
| AS39978US | REED-SMITH-ASN - REED SMITH LLP | 512 | — | 2 |
| AS63248US | USRC-AS63248 - U.S. RENAL CARE, INC. | 512 | — | 2 |
| AS29656US | CCBILL-EU PHOENIX NAP, LLC. | 512 | — | 2 |
| AS1642US | COLORCON - Colorcon Inc | 512 | — | 2 |
| AS19542US | PLICO - Protective Life Corporation | 512 | — | 2 |
| AS50937US | INFINITIUM-AS INFINITIUM CORPORATION | 512 | 1 | 3 |
| AS46108US | VFLMIA2 - NTT Global Networks Incorporated | 512 | — | 2 |
| AS46799US | SOSASN1 - SOS | 512 | — | 2 |
| AS22266US | KNIGHT-INC - KNIGHT TRANSPORTATION | 512 | — | 2 |
| AS18729US | SHAWMUT - Shawmut Design & Construction | 512 | — | 2 |
| AS31823US | ITIVITI-USA - Itiviti USA, Inc. | 512 | — | 2 |
| AS395362US | 8X8-AS-1 - 8x8, Inc. | 512 | — | 2 |
| AS53763US | LAKESIDE - Lakeside Network, LLC | 512 | 256 | 3 |
| AS400444US | MAGNERA-NA1 - Magnera Corporation | 512 | — | 2 |
| AS401739US | REDLUFF-NET01 - RedLuff, LLC | 512 | — | 2 |