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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. | 218.1M | 24,635 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 642 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.6M | 1,306 |
| 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.
32,220 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 | 3,891 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 2,003 |
| AS701US | UUNET - Verizon Business | 43.6M | 992 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,360 |
| 256 |
| — |
| 1 |
| AS393353US | ACUFCU - America's Credit Union | 256 | — | 1 |
| AS397813US | CLARKE-MULTIHOME-IP-BLOCK - Clarke Broadcasting Corporation | 256 | — | 1 |
| AS397244US | TACKITT-NETWORKS - Tackitt, Inc. | 256 | 1 | 2 |
| AS3730US | AQUINA-001 - Aquinas College | 256 | — | 1 |
| AS20123US | NOS-NOG2 - NOS Network Operations Group | 256 | — | 1 |
| AS54737US | LINDTUS - Lindt & Sprungli (USA), Inc. | 256 | — | 1 |
| AS395836US | ALL-STATES-AG-PARTS - All States Ag Parts, Inc | 256 | — | 1 |
| AS401484US | ASTERALABS - Astera Labs | 256 | — | 1 |
| AS394627US | ASN-UCC - United Conveyor Corporation | 256 | — | 1 |
| AS394124US | SHOESHOW-AS-1 - SHOE SHOW Inc. | 256 | 4.1K | 2 |
| AS11438US | LEMANS-1 - LeMans Corporation | 256 | — | 1 |
| AS398066US | AASHTONET - AASHTO | 256 | — | 1 |
| AS393945US | ENPT-I-15 - enfoPoint, LLC | 256 | 65.5K | 3 |
| AS400924US | MACPAPERS-ASN-01 - Mac Papers, LLC | 256 | — | 1 |
| AS400147US | CITY-OF-MODESTO-01-ASN - City of Modesto | 256 | — | 1 |
| AS402249US | BOLD-UWM-HED - Apogee Telecom Inc. | 256 | — | 1 |
| AS401624US | OMNISSA-BLR - Omnissa, LLC | 256 | 1 | 2 |
| AS63011US | RCG-ASN - RIMKUS CONSULTING GROUP, INC | 256 | — | 1 |
| AS396500US | MINAKILABS-AS01 - MinakiLabs | 256 | 4.1K | 2 |
| AS397762US | US-INSIDEPLASTICS-1 - Laird Plastics, Inc. | 256 | — | 1 |
| AS12058US | HOTELS-LON - EXPEDIA, INC | 256 | — | 1 |
| AS402186US | SERO - SeroWeb LLC | 256 | — | 1 |
| AS22142US | FISERV-EPF-CHANDLER - Fiserv Solutions, LLC | 256 | 3 | 3 |
| AS35965US | EDNPC-ORG-1 - Electrical District No.3 of Pinal County | 256 | — | 1 |
| AS402514US | CHRISTHOLM - Christholm | 256 | — | 1 |
| AS30317US | WITONE - WIT | 256 | 65.5K | 2 |
| AS399882US | WORKPLACEOPTIONS-ASN-01 - WORKPLACE OPTIONS, LLC | 256 | — | 1 |
| AS401749US | GALPERSOL - Galactic Performance Solutions, LLC | 256 | — | 1 |
| AS40547US | AERAENERGYLLC - Aera Energy LLC | 256 | — | 1 |
| AS402585US | DIGITAINO-LLC - Digitaino | 256 | 2 | 3 |
| AS395428US | ELMHURST-AS - Elmhurst University | 256 | — | 1 |
| AS16872US | PIKE-EXTERNAL-BGP-RAL - Pike Enterprises, LLC | 256 | — | 1 |
| AS54332US | CITYOFBOISE - City of Boise | 256 | — | 1 |
| AS47097US | AMERIPHARM-INC-DBA-MEDVANTX-PHARMACY-SERVICES - AmeriPharm Inc. | 256 | — | 1 |
| AS21978US | LANAIR-LGCLOUD - LANAIR Group, LLC | 256 | — | 1 |
| AS394407US | CCCC-NC - Central Carolina Community College | 256 | — | 1 |
| AS27596US | REDWIRE - VoloNet Technologies, Inc | 256 | — | 1 |
| AS399108US | CENHUD-01 - Central Hudson Gas & Electric Corporation | 256 | — | 1 |
| AS394999US | K0MWB - K0MWB | 256 | 17 | 3 |
| AS398039US | CENTRIS-ASN-01 - Centris Federal Credit Union | 256 | — | 1 |
| AS32434US | IMP-NET - Imperial Network | 256 | 256 | 2 |
| AS63291US | ADDUS - Addus Healthcare, Inc | 256 | — | 1 |
| AS53978US | ACUMED - Acumed, LLC | 256 | — | 1 |
| AS32985US | FSS-COMCAST-ASN01 - Follett Content | 256 | — | 1 |
| AS20317US | ABN-AS - Abnormal Inc | 256 | 256 | 2 |
| AS399441US | NTXFW1 - TMConcepts LLC | 256 | — | 1 |