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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 | 24,358 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 644 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.6M | 1,303 |
| 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.
32,168 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 233 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 437 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.5M | 3,885 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 1,996 |
| AS701US | UUNET - Verizon Business | 43.6M | 994 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,342 |
| — |
| — |
| 0 |
| AS395221US | AS-CXPRESS - Courier Express Holdings, Inc. | — | — | 0 |
| AS395243US | SYMBIONETWORK-LLC - Symbionetwork LLC | — | — | 0 |
| AS395424US | LOGMEIN-EMEA-1 - Goto Group, Inc. | — | — | 0 |
| AS395525US | DOCLERMEDIA-AS - Docler LA, LLC | — | — | 0 |
| AS395552US | HC-ASN - The HC Companies, Inc. | — | — | 0 |
| AS395639US | MOZILLA-YVR1 - Mozilla Corporation | — | — | 0 |
| AS395678US | VC-AS-01 - Vertical Computers | — | — | 0 |
| AS395785US | WISE-ASN-01 - WiseBroadband | — | — | 0 |
| AS395874US | BGP-PEERING - Turner Acceptance Corp | — | — | 0 |
| AS395889US | PACIFIC-RESEARCH-PLATFORM - Pacific Wave | — | — | 0 |
| AS395949US | SAP-DC-CH - SAP America Inc. | — | — | 0 |
| AS395970US | EN-CONSULTING - EAMONN NUGENT CONSULTING LLC | — | — | 0 |
| AS395992US | AXIS-AWS - HEWLETT PACKARD ENTERPRISE COMPANY | — | — | 0 |
| AS396139US | ECHOWIBB - Resound Networks, LLC | — | — | 0 |
| AS396180US | AS-NNENIX - NNENIX | — | — | 0 |
| AS396184US | MSCC-SOC - Microsemi Corporation | — | — | 0 |
| AS396378US | ENTELIJAN - Entelijan | — | — | 0 |
| AS396397US | CIVANONET-1 - civanoNET, llc | — | — | 0 |
| AS396434US | SAP-DC-TO - SAP America Inc. | — | — | 0 |
| AS396436US | STUDIO-PRODUCTIONS - CBS Corporation | — | — | 0 |
| AS396463US | MICROSOFT-CORP-AS-BLOCK-MSIT - Microsoft Corporation | — | — | 0 |
| AS396523US | HC-CUST-01 - Health Catalyst, Inc. | — | — | 0 |
| AS396532US | FI-TEK - Fi-Tek LLC | — | — | 0 |
| AS396541US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS396564US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS396578US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS396586US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS396603US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS396607US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS396619US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS396631US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS396632US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS396636US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS396642US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS396655US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS396675US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS396739US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS396746US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS396747US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS396766US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS396780US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS396781US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS396786US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS396791US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS396802US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS396816US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |