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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 | 23,924 |
| 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.
32,140 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 230 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 437 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.5M | 3,881 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 1,992 |
| AS701US | UUNET - Verizon Business | 43.6M | 995 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,310 |
| 5.1K |
| 1.5K |
| 26 |
| AS4884US | TCHD - Tarrant County Hospital District | 5.1K | — | 11 |
| AS393319US | ANDURIL-1 - Anduril Industries, Inc. | 5.1K | — | 20 |
| AS32726US | LIBERTY - Liberty University | 5.1K | 272 | 15 |
| AS17004US | BROADBANDONDEMAND - Kentucky Wimax | 5.1K | — | 2 |
| AS5702US | GALAXY - Galaxy Networks (division of Kolacom, Inc.) | 5.1K | — | 3 |
| AS62917US | GIGABITFIBER-ICFN - Gigabit Communications LLC | 5.1K | 1.5K | 30 |
| AS33133US | CNSI-01 - CopperNet Systems, Inc. | 5.1K | — | 4 |
| AS36482US | PLACER-ASN - County of Placer | 5.1K | — | 2 |
| AS46708US | ENVOI - Allied International Corp of VA. | 5.1K | — | 2 |
| AS395652US | COUNTYOFBERGEN - County of Bergen | 5.1K | — | 6 |
| AS397332US | ANACORTES-MUNICIPAL-ISP - City of Anacortes | 5.1K | 4.1K | 6 |
| AS17204US | AKAMAI-NOMINUM-ASN - Akamai Technologies, Inc. | 5.1K | 1 | 3 |
| AS25787US | ROWE-NETWORKS - Rowe Wireless Networks LLC | 5.1K | 65.5K | 12 |
| AS32442US | USMNSTCMARCO01 - Marco Technologies LLC | 5.1K | — | 4 |
| AS40841US | MARKETAXESS-INC-AS - MARKETAXESS HOLDINGS, INC. | 5.1K | — | 15 |
| AS53428US | KCS-US-NEBIUS - Nebius Inc. | 5.1K | 16 | 10 |
| AS19774US | AVA1 - Avista Corporation | 5.1K | — | 5 |
| AS30491US | CROWELLP - Crowe LLP | 5.1K | — | 20 |
| AS46918US | GLPEER - GLOBALHOSTINGSOLUTIONS INC | 5.1K | — | 8 |
| AS398885US | AERWAVE - Aerwave, Inc. | 5.1K | 44 | 64 |
| AS16934US | LEACO-INTERNET - Leaco Rural Telephone | 5.1K | — | 2 |
| AS14464US | RINET - Rhode Island Network for Educ. Technology | 5.1K | — | 5 |
| AS54623US | ONE-INTERNET-AMERICA - One Internet America, LLC | 5.1K | — | 6 |
| AS33354US | AS33354 - PORT AUTHORITY OF New York and New Jersey | 5.1K | — | 4 |
| AS395717US | BLUEARCHIVE-ZONE-1 - Wasabi Technologies, Inc. | 5.1K | — | 20 |
| AS40773US | FRANTIC-LLC - Frantic, LLC. | 5.1K | 1 | 11 |
| AS203156US | Relayify-LLC Relayify LLC | 5.1K | 524.3K | 21 |
| AS36825US | ASN-PNP - Plug and Play Tech Center | 5.1K | — | 2 |
| AS22332US | WDC-US - Western Digital Corporation | 5.1K | — | 14 |
| AS40539US | PROHCI - Hosting Consulting, Inc | 5.1K | — | 7 |
| AS31777US | SPARCC-AS - Stark Portage Area Computer Consortium | 5.1K | — | 5 |
| AS22220US | EACOMARTS - Electronic Arts, Inc. | 5.1K | — | 6 |
| AS21908US | FAMILY-VIDEO-INTERNET - Family Video Movie Club Inc. | 5.1K | — | 20 |
| AS62882US | STSS-HAZELWOOD-ASN - Mallinckrodt Enterprises LLC | 5.1K | — | 10 |
| AS62648US | MBLINKTX-ASN - City of Mont Belvieu | 5.1K | — | 4 |
| AS46692US | CITYOFWINDOM - City of Windom | 5.1K | 65.5K | 3 |
| AS36048US | BERRYCOMM - Berry-IT Incorporated | 5.1K | — | 10 |
| AS397710US | HARMONYTELCO - MiBroadband | 5.1K | — | 5 |
| AS10302US | NEGIA-NET - SNAPPYDSL.NET | 5.1K | — | 2 |
| AS14496US | AGILENT-COS - Agilent Technologies, Inc. | 5.1K | — | 20 |
| AS394117US | ECI-ASN - Encore Communications, Inc | 5.1K | 65.5K | 3 |
| AS22881US | USBANCORP-2 - U.S. BANCORP | 5.1K | — | 6 |
| AS20329US | DIAMONDNET - Sallisaw Municipal Authority | 5.1K | — | 2 |
| AS36372US | VENYU-3 - REV | 5.1K | 65.5K | 3 |
| AS54945US | RACK59 - RACK59 Partners, LLC | 5.1K | 65.5K | 5 |
| AS18719US | TSRSOLUTIONS - TSR Solutions, Inc. | 5.1K | — | 5 |