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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 |
| AS26965US | FACTUAL - Factual Inc. | — | — | 0 |
| AS27037US | DNIC-ASBLK-27032-27159 - United States Department of Defense (DoD) | — | — | 0 |
| AS27038US | DNIC-ASBLK-27032-27159 - United States Department of Defense (DoD) | — | — | 0 |
| AS27082US | DNIC-ASBLK-27032-27159 - United States Department of Defense (DoD) | — | — | 0 |
| AS27089US | DNIC-ASBLK-27032-27159 - United States Department of Defense (DoD) | — | — | 0 |
| AS27115US | DNIC-ASBLK-27032-27159 - United States Department of Defense (DoD) | — | — | 0 |
| AS27157US | DNIC-ASBLK-27032-27159 - United States Department of Defense (DoD) | — | — | 0 |
| AS27158US | DNIC-ASBLK-27032-27159 - United States Department of Defense (DoD) | — | — | 0 |
| AS27171US | WINDSTREAM - Windstream Communications LLC | — | — | 0 |
| AS27199US | VELOCITY-NETWORKS-INC - Velocity Networks, Inc. | — | — | 0 |
| AS27211US | AS27211 - Conduent Business Services, LLC | — | — | 0 |
| AS27230US | MEIKO - Meiko America, Inc | — | — | 0 |
| AS27286US | MCALLEN-DATA-CENTER - McAllen Data Center, LLC | — | — | 0 |
| AS27310US | 180SERVERS - 180Servers.com | — | — | 0 |
| AS27374US | PFCS - Penn Foster Career School | — | — | 0 |
| AS27384US | NUTMEG-STATE-FINANCIAL-CREDIT-UNION - Nutmeg State Financial Credit Union | — | — | 0 |
| AS27435US | OPSOURCE-INC - NTT Cloud Infrastructure, Inc. | — | — | 0 |
| AS27473US | CORESPACE-DAL2 - CoreSpace, Inc. | — | — | 0 |
| AS27504US | WOODHOUSE-AUTO-FAMILY - Woodhouse Auto Family | — | — | 0 |
| AS27510US | HPE-15 - HEWLETT PACKARD ENTERPRISE COMPANY | — | — | 0 |
| AS27544US | VGRS-AC21 - VeriSign Global Registry Services | — | — | 0 |
| AS27638US | CBSITE-QTS-WEB - CareerBuilder, LLC | — | — | 0 |
| AS29699US | FLEX-DATASIDE-AS02 - Flexential Dataside, LLC | — | — | 0 |
| AS29724US | D102-ACULI-2 - Data102 | — | — | 0 |
| AS29799US | WANLINK-OPEN - Guggenheim Services LLC | — | — | 0 |
| AS29977US | WTA-VPN-01 - Whatcom Transportation Authority | — | — | 0 |
| AS30057US | SURFCONTROLSV-ASN - Forcepoint, LLC | — | — | 0 |
| AS30062US | TTEMI-ASN - Tetra Tech EM Inc. | — | — | 0 |
| AS30127US | ISC-F-AS - Internet Systems Consortium, Inc. | — | — | 0 |
| AS30131US | ISC-F-AS - Internet Systems Consortium, Inc. | — | — | 0 |
| AS30141US | DEMOCRATIC-NATIONAL-COMMITTEE - Democratic National Committee | — | — | 0 |
| AS30271US | KLGATES - K&L Gates, LLP | — | — | 0 |
| AS30318US | GWP-INTERNET-ASN - GWP HOLDINGS LLC | — | — | 0 |
| AS30448US | QTRADE-CAPITAL - QTrade Capital Partners LLC | — | — | 0 |
| AS30540US | DEER-VALLEY-RESORT - Montage Hotels & Resorts | — | — | 0 |
| AS30590US | NSCM-NYC - 3G Capital, Inc. | — | — | 0 |
| AS30592US | WESTEC-SECURITY-INC - Westec Security, Inc. | — | — | 0 |
| AS30605US | JACKHENRY-3 - Jack Henry & Associates, Inc. | — | — | 0 |
| AS30701US | ISC-F-AS - Internet Systems Consortium, Inc. | — | — | 0 |
| AS30716US | ROSEINT - Rose international | — | — | 0 |
| AS30718US | SSI-WESTCOAST - Survey Sampling International, LLC | — | — | 0 |
| AS31744US | NATES-ACCESS-01 - Nate's Access | — | — | 0 |
| AS31839US | GORDIAN-HEALTH-SOLUTIONS - Onlife Health, Inc. | — | — | 0 |
| AS31908US | VONAGE-04 - Vonage Holdings, Inc. | — | — | 0 |
| AS31925US | QUEBEC-RANDD-OFFICE - Oracle Corporation | — | — | 0 |
| AS31959US | CLOUDJ - CLOUDJ LLC | — | — | 0 |