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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. | 210.9M | 21,015 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 113.7M | 639 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,222 |
| 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 | 368 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 48M | 3,584 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.7M | 1,935 |
| AS701US | UUNET - Verizon Business | 43.6M | 1,000 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.7M | 4,561 |
| 17.4K |
| — |
| 5 |
| AS23260US | SCI-AS - Midcontinent Communications | 17.4K | 65.5K | 10 |
| AS26407US | CAROLINA-DIGITAL-PHONE - Carolina Digital Phone, Inc. | 17.4K | — | 3 |
| AS4150US | SUPRANET-WIS - SupraNet Communications, Inc. | 17.4K | 65.8K | 11 |
| AS33199US | ASN-AMHERSTCOMM-01 - Amherst Communications | 17.4K | — | 2 |
| AS22549US | TBDSL-01 - KUDUCOM | 17.4K | 3 | 7 |
| AS55106US | DATACATE-AS1 - Datacate Inc. | 17.4K | 4 | 33 |
| AS13676US | ILAND-AS - GoNetSpeed | 17.2K | — | 41 |
| AS399647US | RUMBLE - Rumble USA Inc. | 17.2K | 4.1K | 26 |
| AS54535US | NIKEUS-NV - Nike, Inc. | 17.2K | — | 46 |
| AS14733US | AS14733 - Barclays Capital Inc. | 17.2K | — | 47 |
| AS397067US | VFOREGONLLC - VFOregon LLC | 17.2K | 65.5K | 37 |
| AS32869US | SILVERSTAR-NET - Silver Star Telecom, LLC | 17.2K | — | 13 |
| AS398913US | NTSPARK - NT Spark, LLC | 17.2K | 65.5K | 31 |
| AS398643US | SRU-ASN - Slippery Rock University of Pennsylvania | 17.2K | 6.1K | 7 |
| AS19233US | DIALOGIX - Dialogix Telecom | 17.2K | 1 | 20 |
| AS11183US | MHTC-NET - Mount Horeb Telephone Co | 17.2K | — | 21 |
| AS31975US | SEWANEE - University of the South | 17.2K | — | 4 |
| AS25934US | AS25934 - Syniverse Technologies, LLC | 17.2K | 1 | 68 |
| AS4261US | BLUEGRASSNET - Intermart Inc. | 17.2K | 65.5K | 6 |
| AS31966US | CSAA-INSURANCE-EXCHANGE - CSAA Insurance Exchange | 17.2K | — | 22 |
| AS40675US | PROQUEST - PROQUEST, LLC | 17.2K | — | 4 |
| AS400238US | PIEG-01 - PIE&G | 17.2K | 4.1K | 44 |
| AS398774US | CUP-3 - Pennsylvania Western University | 17.2K | 6.1K | 7 |
| AS23154US | SANMINA-SCI - Sanmina-SCI Corporation | 16.9K | — | 61 |
| AS12247US | META-SOLUTIONS - Tri-Rivers Educational Computer Association | 16.9K | — | 11 |
| AS14010US | JACKHENRY - Jack Henry & Associates, Inc. | 16.9K | — | 61 |
| AS22944US | KCTCS-INTERNET2 - Kentucky Community and Technical College System | 16.9K | — | 3 |
| AS33138US | AS-NYPD - New York City Police Department | 16.9K | — | 3 |
| AS36473US | CONTE-25-BLA-RST - Contegix | 16.9K | 196.6K | 17 |
| AS63242US | AS-CMN-LS - Metronet | 16.9K | — | 17 |
| AS47028US | TVC-ASN - Twin Valley Communications Inc | 16.9K | — | 10 |
| AS21617US | NARA - National Archives and Records Administration | 16.9K | — | 5 |
| AS400510US | AS-UMGTCN - United Management Group, LLC | 16.9K | 4.1K | 3 |
| AS11687US | CITY-OF-HOPE - City of Hope Medical Center | 16.9K | — | 4 |
| AS402159US | VALLEY FIBERCOM - Valley FiberCom | 16.9K | — | 24 |
| AS30012US | ASN-UNIVERSAL-MUSIC-GROUP-INC - Universal Music Group, INC. | 16.9K | — | 49 |
| AS46115US | LUTHER - Luther College | 16.9K | — | 35 |
| AS63099US | MADEALA TELECOM TECHNOLOGY - MADEALA TELECOM TECHNOLOGY INC | 16.9K | — | 65 |
| AS394303US | BIGSCOOTS - BigScoots | 16.9K | — | 12 |
| AS53703US | KWIKOM - KwiKom Communications | 16.9K | 131.1K | 11 |
| AS14576US | HOSTING-SOLUTIONS - Hosting Solution Ltd. | 16.9K | 2.1M | 66 |
| AS11059US | MIFFLIN-COUNTY-WIRELESS - MIFFLIN COUNTY WIRELESS LLC | 16.9K | 65.5K | 18 |
| AS12130US | BANDWIDTH-US - Bandwidth Inc. | 16.9K | — | 31 |
| AS53407US | UTOPIA-FIBER - UTOPIA | 16.6K | 65.5K | 24 |
| AS54163US | AHOSTING - AHOSTING | 16.6K | — | 2 |
| AS17373US | MCI-COV - Verizon Business | 16.6K | — | 5 |