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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) | 227.4M | 3,133 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 217.9M | 25,270 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 642 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.7M | 1,323 |
| 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.
32,193 autonomous systems registered to United States. Click an AS for detail.
| 72.9M |
| 229 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 437 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.6M | 3,900 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.9M | 2,009 |
| AS701US | UUNET - Verizon Business | 43.6M | 993 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.5M | 4,230 |
| 4.9K |
| 65.8K |
| 11 |
| AS393954US | CFN-SERVICES - CFN Services Inc. | 4.9K | 139.3K | 34 |
| AS13823US | MESH-NET - Mesh.Net | 4.9K | 65.5K | 13 |
| AS40300US | DRF-IXNET-HI - DR Fortress, LLC | 4.9K | 5 | 14 |
| AS26867US | BGC-NETWORK - Brookshire Grocery Company | 4.9K | — | 4 |
| AS30109US | MEDALLIA-INC - Medallia Inc. | 4.9K | — | 19 |
| AS62695US | VERSO-NETWORKS - Verso Networks, Inc. | 4.9K | 65.5K | 11 |
| AS19185US | 19185 - City of Mesa | 4.9K | — | 11 |
| AS215731US | NovusLabs Novus Labs Limited | 4.9K | — | 19 |
| AS64294US | PAC-GCS - Panasonic Avionics Corporation | 4.9K | — | 13 |
| AS23294US | ULM-1 - The University of Louisiana at Monroe | 4.9K | 1 | 8 |
| AS396949US | CLOUDWEBMANAGE-TX - Kamatera, Inc. | 4.9K | 2 | 21 |
| AS394869US | APNC - Asia Pacific Network Corporation | 4.9K | — | 19 |
| AS395266US | KEYSIGHT-TECHNOLOGIES - Keysight Technologies, Inc | 4.9K | 6 | 26 |
| AS402020US | ASN-PLANISYS - Planisys Corp | 5.1K | 131.1K | 19 |
| AS14496US | AGILENT-COS - Agilent Technologies, Inc. | 5.1K | — | 20 |
| AS23423US | WASATCH BROADBAND - Wasatch Broadband | 5.1K | 65.5K | 21 |
| AS46708US | ENVOI - Allied International Corp of VA. | 5.1K | — | 2 |
| AS4996US | SBI - Citigroup Inc. | 5.1K | — | 20 |
| AS39938US | RCW - River Canyon Wireless | 5.1K | — | 20 |
| AS11472US | YOUR-TOWN-ONLINE - Your Town Online | 5.1K | 65.5K | 3 |
| AS10302US | NEGIA-NET - SNAPPYDSL.NET | 5.1K | — | 2 |
| AS22220US | EACOMARTS - Electronic Arts, Inc. | 5.1K | — | 6 |
| AS30491US | CROWELLP - Crowe LLP | 5.1K | — | 20 |
| AS25787US | ROWE-NETWORKS - Rowe Wireless Networks LLC | 5.1K | 65.5K | 12 |
| AS32003US | LITEWIRE-EV - LiteWire Internet Services, Inc. | 5.1K | — | 2 |
| AS30455US | HOSTVENOM-LLC - HostVenom LLC | 5.1K | 4.1K | 18 |
| AS40539US | PROHCI - Hosting Consulting, Inc | 5.1K | — | 7 |
| AS393964US | HMFB - High Mountain Farm, LLC | 5.1K | — | 14 |
| AS402628US | ACUBENET - IDC | 5.1K | 65.8K | 23 |
| AS20329US | DIAMONDNET - Sallisaw Municipal Authority | 5.1K | — | 2 |
| AS11624US | AS-COLLINS - COLLINS COMMUNICATIONS INC | 5.1K | — | 20 |
| AS17004US | BROADBANDONDEMAND - Kentucky Wimax | 5.1K | — | 2 |
| AS46890US | 3COM-NET-ROUTER-AS46890 - 3Com Net Router | 5.1K | — | 13 |
| AS398885US | AERWAVE - Aerwave, Inc. | 5.1K | 44 | 64 |
| AS395652US | COUNTYOFBERGEN - County of Bergen | 5.1K | — | 6 |
| AS13943US | YK-COMMUNICATIONS - Y K Communications, LTD | 5.1K | 65.5K | 4 |
| AS14762US | AMGEN - AMGEN, Inc. | 5.1K | — | 17 |
| AS5702US | GALAXY - Galaxy Networks (division of Kolacom, Inc.) | 5.1K | — | 3 |
| AS14464US | RINET - Rhode Island Network for Educ. Technology | 5.1K | — | 5 |
| AS26111US | EU-FTTH - Erwin Utilities | 5.1K | — | 8 |
| AS53428US | KCS-US-NEBIUS - Nebius Inc. | 5.1K | 16 | 10 |
| AS22881US | USBANCORP-2 - U.S. BANCORP | 5.1K | — | 6 |
| AS26742US | MAXNOC-ASN - MaxNOC Communications, LLC. | 5.1K | — | 2 |
| AS399150US | ISPEXCHANGECORP - ispexchangecorp | 5.1K | — | 5 |
| AS19436US | CAPROCK-1 - Cap Rock Telephone Cooperative, Inc. | 5.1K | — | 2 |
| AS31777US | SPARCC-AS - Stark Portage Area Computer Consortium | 5.1K | — | 5 |