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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 | 3,134 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 218.2M | 25,263 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 641 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,336 |
| 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.
32,247 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. | 44.8M | 2,004 |
| AS701US | UUNET - Verizon Business | 43.6M | 993 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,350 |
| 1.5K |
| 96 |
| 9 |
| AS63154US | DCCC - Delaware County Community College | 1.5K | 512 | 8 |
| AS11483US | CONVIVA-AS - Conviva, Inc. | 1.5K | 3 | 9 |
| AS33661US | CMCS - Comcast Cable Communications, LLC | 1.5K | 15 | 21 |
| AS23371US | CAEUS-AS - CAE USA, Inc | 1.5K | — | 6 |
| AS55270US | QIPMIA1 - Quik, LLC | 1.5K | 4.1K | 6 |
| AS23023US | INTUITIVE - Intuitive Surgical, Inc. | 1.5K | — | 6 |
| AS26995US | TELENETWORK - TeleNetwork | 1.5K | — | 4 |
| AS32506US | ENL-17-AS - Experior Networks LLC | 1.5K | — | 6 |
| AS7014US | XO-AS7014 - Verizon Business | 1.5K | — | 6 |
| AS23374US | FPUA - FPUAnet Communications | 1.5K | — | 2 |
| AS22344US | ABC-SUPPLY-CO - ABC Supply Co. | 1.5K | — | 5 |
| AS1414US | ASN1 - GENUINE PARTS COMPANY | 1.5K | — | 4 |
| AS398998US | MAVERIX - Maverix LLC | 1.5K | 8.2K | 8 |
| AS22338US | ALLY-INVEST - Ally Financial Inc. | 1.5K | — | 4 |
| AS13496US | BELCAN - Belcan Corporation | 1.5K | — | 5 |
| AS19572US | OMEGASYS-HQ - Omega Systems Consultants, LLC | 1.5K | — | 3 |
| AS54695US | PROGENT-ASN-1 - Progent, Corp. | 1.5K | — | 5 |
| AS2030US | TBCASN2 - The Boeing Company | 1.5K | — | 3 |
| AS33729US | JAVITS - Jacob K. Javits Convention Center | 1.5K | — | 2 |
| AS6231US | SCANA - Dominion Virginia Power | 1.5K | — | 6 |
| AS401204US | RFIH-NET-06 - Retail Finance International Holdings, Inc. | 1.5K | 1 | 5 |
| AS53698US | NINJA-IX-TRANSIT-CONNECTION - Ninja-IX Corporation | 1.5K | 30 | 21 |
| AS18995US | CLACKAMAS-ASN - Clackamas County | 1.5K | 256 | 3 |
| AS46121US | FTMS-01 - Florida Technology Managed Services, Inc. | 1.5K | — | 6 |
| AS50069US | MISAKA-ANYCAST Misaka Network, Inc. | 1.5K | 10 | 16 |
| AS27307US | NABORS - Nabors Corporate Services, Inc. | 1.5K | — | 6 |
| AS17351US | THINQ - THINQ | 1.5K | — | 3 |
| AS18733US | ZENIMAXMEDIA - ZeniMax Media Incorporated | 1.5K | — | 6 |
| AS394109US | CFH - CFH CABLE INC | 1.5K | 589.8K | 8 |
| AS32062US | ARMSTRONGWORLD-01 - Armstrong World Industries, Inc. | 1.5K | — | 6 |
| AS33089US | XACCELNETWORKS - Xaccel Networks LLC | 1.5K | 65.5K | 7 |
| AS31845US | ISI COMMUNICATIONS - ISI Communications | 1.5K | 65.5K | 3 |
| AS46277US | OHIOHEALTH - OhioHealth Corporation | 1.5K | — | 5 |
| AS199152US | VDC-USA Virtual Data Center Inc | 1.5K | 327.7K | 15 |
| AS40760US | FWB-ALASKA-2 - TelAlaska | 1.5K | — | 3 |
| AS401863US | TELEPAGE-HELENWOOD - TELE-PAGE, Inc | 1.5K | — | 2 |
| AS7191US | CENTURYLINK-PRISM - CenturyLink Communications, LLC | 1.5K | — | 2 |
| AS396123US | WAVEBAND-LLC - WAVE.BAND, LLC | 1.5K | — | 6 |
| AS10859US | GDIT-CSRA-01 - General Dynamics Information Technology, Inc. | 1.5K | — | 6 |
| AS62533US | AIMS-VTP-US - Ascendum-IMS, LLC | 1.5K | — | 5 |
| AS19806US | ASNBLK-VTLA2 - NTT Global Networks Incorporated | 1.5K | — | 6 |
| AS47072US | SAINT-FRANCIS-HOSPITAL-AND-MEDICAL-CENTER - Saint Francis Hospital and Medical Center | 1.5K | — | 3 |
| AS4869US | CNMCC - Central New Mexico Community College | 1.5K | — | 6 |
| AS15111US | HERMANMILLER - MillerKnoll, Inc. | 1.5K | — | 3 |
| AS15063US | PWEH-ASN - Pratt and Whitney | 1.5K | — | 4 |
| AS11791US | SLC-IDENT-AS - IdenTrust | 1.5K | — | 2 |