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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 | 3,139 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 211.2M | 21,129 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 113.7M | 639 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,241 |
| 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 | 373 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 49.3M | 3,664 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.7M | 1,947 |
| AS701US | UUNET - Verizon Business | 43.6M | 1,000 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,375 |
| 1K |
| — |
| 1 |
| AS29805US | WPP-ET-APAC - The Ogilvy Group, LLC | 1K | — | 3 |
| AS401231US | WATCH-BROADBAND-TX - Watch Communications | 1K | — | 1 |
| AS26337US | OIS1 - Oso Grande IP Services, LLC | 1K | — | 4 |
| AS16482US | PEAK10-LOU - Flexential Corp. | 1K | — | 2 |
| AS400790US | CHIA - Chia Network Inc. | 1K | 4 | 8 |
| AS212947US | ETLGR Etlgr LLC | 1K | — | 4 |
| AS400445US | NUSENDA-ADMIN-01 - NUSENDA FEDERAL CREDIT UNION | 1K | — | 3 |
| AS3629US | NYSERNET-BLK - NYSERNet | 1K | 1 | 2 |
| AS14362US | VAISALA1 - Vaisala Inc | 1K | — | 4 |
| AS397283US | ROCKETNODE - SPARKED HOST LLC | 1K | — | 3 |
| AS27441US | SSN-US - ITRON INC. | 1K | — | 2 |
| AS40729US | ECDC2013 - AECOM | 1K | — | 2 |
| AS402493US | HOSTCRAM - HostCram | 1K | — | 4 |
| AS25765US | CQGNET-NEWYORK - CQG, Inc. | 1K | — | 4 |
| AS32464US | UICOMP-AS - University Of Illinois College Of Medicine At Peoria | 1K | — | 1 |
| AS53948US | ONEIRIC - Oneiric Systems, LLC | 1K | — | 4 |
| AS401085US | LCRA-ASN2 - Lower Colorado River Authority | 1K | 256 | 4 |
| AS32541US | CCI-DATA-01 - CCI Networks Services | 1K | — | 4 |
| AS14722US | OPUS-INTERACTIVE-TX1 - Opus Interactive | 1K | 4.1K | 2 |
| AS393630US | AVANTGUARD - Avantguard Monitoring Centers | 1K | — | 4 |
| AS214016US | Amarebox-ASN Amarebox LLC | 1K | 8.2K | 6 |
| AS30118US | MAS-CTDC - Mizuho Americas Services LLC | 1K | — | 4 |
| AS26137US | LNW-6601-BERMUDA-RD - Light & Wonder, Inc. | 1K | — | 1 |
| AS54746US | KLAZO-ASN - KLAZO, LLC | 1K | — | 4 |
| AS22448US | MICRO-SPEC - Microcomputer Specialists, Inc. | 1K | — | 1 |
| AS22487US | VALENCIA - Valencia College | 1K | — | 4 |
| AS1420US | STL-C9D - STL OFFICE SOLUTIONS, INC. | 1K | — | 1 |
| AS39979US | POLYGON-IO-NY5 - Polygon.io, Inc | 1K | — | 4 |
| AS23291US | FLAGSTAR-BANK-US - Flagstar Bank | 1K | — | 4 |
| AS30011US | MESSER-NORTH-AMERICA - Messer North America, Inc. | 1K | — | 4 |
| AS12236US | HANOVER - Hanover Insurance Group, Inc. | 1K | — | 4 |
| AS23142US | NEOGENOMICS-ASN - NeoGenomics | 1K | — | 3 |
| AS396574US | VRSN-AC50-340 - VeriSign Global Registry Services | 1K | — | 4 |
| AS46133US | ET-ASN2 - Elite Telecom, Inc | 1K | — | 2 |
| AS395047US | ARTIX-NET - Artix Networks LLC | 1K | 272 | 6 |
| AS398557US | SDS-WIRELESS-INC - SDS Wireless, Inc. | 1K | — | 1 |
| AS22788US | KATYISD - Katy Independent School District | 1K | — | 3 |
| AS400430US | MOUNDSVIEW-ASN - Multi-Tech Systems, Inc | 1K | — | 3 |
| AS26471US | STIFEL - Stifel, Nicolaus & C | 1K | — | 4 |
| AS394130US | STEALTHBYTE - StealthByte Network LLC | 1K | — | 3 |
| AS257US | DNIC-AS-00257 - Navy Network Information Center (NNIC) | 960 | 1 | 7 |
| AS26411US | PRERENDER-NET - Saas.group LLC | 896 | 35 | 9 |
| AS393447US | AS-VIRTUALSTACKS - Virtual Stacks LLC | 864 | — | 5 |
| AS399734US | CLARIVATE-01 - Clarivate Analytics (US) LLC | 832 | — | 4 |
| AS23435US | PHP-14-AS - Premier Health Partners | 800 | — | 3 |
| AS39984US | STARZENTERTAINMENT - Starz Entertainment Group LLC | 800 | — | 4 |