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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 | 3,138 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 211.2M | 21,163 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 113.7M | 639 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,248 |
| 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 | 398 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 49.3M | 3,712 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.7M | 1,958 |
| AS701US | UUNET - Verizon Business | 43.6M | 1,000 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,299 |
| — |
| — |
| 0 |
| AS396454US | 24-7-AS-HQ-001 - 247.ai, Inc. | — | — | 0 |
| AS396478US | CHENMED-CL1344 - ChenMed LLC | — | — | 0 |
| AS396498US | TR-ASN-SB-01 - The Tire Rack, Inc. | — | — | 0 |
| AS396548US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS396569US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS396658US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS396672US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS396676US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS396677US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS396685US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS396688US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS396702US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS396720US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS396722US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS396729US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS396749US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS396754US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS396771US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS396794US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS396805US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS396864US | 8BIRDS - 8 Birds Video Inc | — | — | 0 |
| AS396923US | YMCA-OF-GREATER-CHARLOTTE - Young Men's Christian Association of Greater Charlotte | — | — | 0 |
| AS396932US | CC-NA-01 - COMPUTACENTER UNITED STATES INC. | — | — | 0 |
| AS396938US | WELLTECK-IT - VC3, Inc. | — | — | 0 |
| AS396981US | DETEQUE-ANYCAST - Deteque | — | — | 0 |
| AS396988US | ONEPOINTSYNC - OnePointSync, LLC. | — | — | 0 |
| AS397073US | BISD-ASN - Burleson Independent School District | — | — | 0 |
| AS397148US | CEASTUDYABROAD - Cultural Experiences Abroad, Inc. | — | — | 0 |
| AS397197US | VRSN-AC28 - VeriSign Global Registry Services | — | — | 0 |
| AS397278US | CERTONA-RESONANCE-01 - Certona Corporation | — | — | 0 |
| AS397428US | EMU-01 - Eastern Michigan University | — | — | 0 |
| AS397454US | ARK-AS-01 - ArkiTechs Inc. | — | — | 0 |
| AS397458US | SFOPERA-ASN - San Francisco Opera | — | — | 0 |
| AS397513US | GO-DADDY-COM-LLC - GoDaddy.com, LLC | — | — | 0 |
| AS397544US | LONG-MS-ASN-NAME - Longfellow Investment Management Co., LLC | — | — | 0 |
| AS397565US | COMPUTER-EXPERT-GROUPS - Computer Expert Group Inc | — | — | 0 |
| AS397634US | ASCENT-ATL1-01 - Ascent LLC | — | — | 0 |
| AS397663US | SKOPOS-FINANCIAL - Skopos Financial LLC | — | — | 0 |
| AS397693US | C1CX-MN - C1CX | — | — | 0 |
| AS397695US | SKANSKA-USA - SKANSKA USA INC | — | — | 0 |
| AS397705US | ZENMONICS-01 - Fidelity National Information Services, Inc. | — | — | 0 |
| AS397823US | LSST - NSF'S NOIRLAB | — | — | 0 |
| AS397876US | FORCE-BROADBAND - Force Broadband LLC | — | — | 0 |
| AS397901US | CTL - CloudTechLabs LLC | — | — | 0 |
| AS397938US | OLDNAVY-INC - Old Navy | — | — | 0 |
| AS397960US | PVNET-1 - PlumVoice | — | — | 0 |