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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 | 3,134 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 211.2M | 21,291 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 113.7M | 639 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,268 |
| 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 | 411 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 49.3M | 3,732 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 1,968 |
| AS701US | UUNET - Verizon Business | 43.6M | 1,000 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,335 |
| SYNAPSETOASN1 - Synapse, L.L.C. |
| — |
| — |
| 0 |
| AS6340US | MEGANET-EMPIRE - Meganet Communications | — | — | 0 |
| AS6370US | LUCENT-ASN - Nokia of America Corporation | — | — | 0 |
| AS6395US | LVLT-6395 - Level 3 Parent, LLC | — | — | 0 |
| AS6413US | SOCOMM - Southern Online Systems, Inc. | — | — | 0 |
| AS6425US | TEN - T E Network, Inc. | — | — | 0 |
| AS6436US | INTERACCESS-NET - Interaccess Corp. | — | — | 0 |
| AS6512US | GLOBAL2000 - Global 2000 Communications, Inc. | — | — | 0 |
| AS6513US | PROXIMUS - Proximus | — | — | 0 |
| AS6518US | CIX-GCCC - CIX, Inc. and Greater Cinti Chamber of Commerce | — | — | 0 |
| AS6537US | ZAYO-CAN-6537 - Zayo Bandwidth | — | — | 0 |
| AS6575US | WISEASN - Wilmington Internet Service Enterprises, Inc. | — | — | 0 |
| AS6625US | UI - Jim Morton Consulting | — | — | 0 |
| AS6633US | CMGDI - CMG Direct Interactive | — | — | 0 |
| AS6986US | ANGEL-NETWORKS - Angel Networks | — | — | 0 |
| AS7031US | MOONLIGHT-AS - Moonlight Media, Inc. | — | — | 0 |
| AS7066US | VATECH-NET - Virginia Polytechnic Institute and State Univ. | — | — | 0 |
| AS7096US | DSOURCE - Data Source, L.L.C. | — | — | 0 |
| AS7101US | SANDBOX - Sandbox Entertainment Corporation | — | — | 0 |
| AS7111US | ASPEN-SYSTEMS - Aspen Systems Corporation | — | — | 0 |
| AS7141US | AUS-AS - Koltai Inc | — | — | 0 |
| AS7142US | AZSTARNET - TNI PARTNERS | — | — | 0 |
| AS7200US | G1ENGLAB - Global One Private Systems | — | — | 0 |
| AS7279US | AMOSPRESS - Amos Press, Inc. | — | — | 0 |
| AS7283US | THERIVER - THE RIVER / INTERNET ACCESS CO | — | — | 0 |
| AS7304US | THECIA - Complete Internet Access, Inc | — | — | 0 |
| AS7375US | HULANET - Hula Net, Inc | — | — | 0 |
| AS7401US | FWINET - Fort Wayne Internet, LLC | — | — | 0 |
| AS7433US | CYBERMAX - Cybermax Communications, Inc. | — | — | 0 |
| AS7737US | ASWELLNET - Aswell Corporation | — | — | 0 |
| AS7742US | DOITNOWDOTCOM - InternetNow, Inc. | — | — | 0 |
| AS7771US | AMULET - Amulet Software | — | — | 0 |
| AS7791US | EARLY - Early Access | — | — | 0 |
| AS7844US | OASIS - OASIS TECHNOLOGIES | — | — | 0 |
| AS7898US | DNA-ASN - Digital Network Associates | — | — | 0 |
| AS7933US | BORDERS-GROUP - Borders Group Inc. | — | — | 0 |
| AS7943US | TDS-SA-ISP - Trident Data Systems | — | — | 0 |
| AS7967US | SECUREDOC - Secure Document Systems, Inc. | — | — | 0 |
| AS7987US | CENTURYLINK-LEGACY-SAVVIS-RESERVED-IPADMIN - CenturyLink Communications, LLC | — | — | 0 |
| AS7991US | CENTURYLINK-LEGACY-SAVVIS-ASIA-TRANSIT - CenturyLink Communications, LLC | — | — | 0 |
| AS8063US | BELLSOUTH-NET-BLK3 - AT&T Enterprises, LLC | — | — | 0 |
| AS8114US | VRIS-8112-8115 - Verizon Business | — | — | 0 |
| AS8144US | WORLDNOWONLINE - WorldNow Online | — | — | 0 |
| AS10267US | GVI-AS - GlobalVision Systems, Inc | — | — | 0 |
| AS10313US | PEQUOT - Pequot Systems, Inc. | — | — | 0 |
| AS10332US | BROADBAND - MSHOW.com | — | — | 0 |
| AS10334US | NAVISITE-EAST - Navisite Internet Services | — | — | 0 |