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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 | 3,134 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 211.2M | 21,291 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 113.7M | 639 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,268 |
| 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 | 411 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 49.3M | 3,732 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 1,968 |
| AS701US | UUNET - Verizon Business | 43.6M | 1,000 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,335 |
| — |
| — |
| 0 |
| AS22783US | WEBPOWER - WebPower, Inc. | — | — | 0 |
| AS22823US | BDHSOLUTIONS-01 - BDH Solutions, LLC | — | — | 0 |
| AS22853US | EMULEX-1 - Avago Technologies U.S. Inc. | — | — | 0 |
| AS22922US | APPCARD - AppCard, Inc | — | — | 0 |
| AS23017US | MSI-PARTNER-ATT - Motorola Solutions, Inc. | — | — | 0 |
| AS23076US | INIT-PHX2 - Wi-Fiber, Inc. | — | — | 0 |
| AS23098US | PHOENIX-PLANO-EDS - American Airlines Inc. | — | — | 0 |
| AS23170US | US-ICAP-001 - GARBAN INTERCAPITAL | — | — | 0 |
| AS23250US | BRAINTREE-1 - PayPal, Inc. | — | — | 0 |
| AS23324US | PANSUPTLLC-0001 - Panhandle Support, LLC | — | — | 0 |
| AS23333US | ASCO - ASCO | — | — | 0 |
| AS23334US | COMM-OF-BASEBALL - Major League Baseball | — | — | 0 |
| AS23337US | ATCE-ASN - Alfa Tech Consulting Engineers, Inc | — | — | 0 |
| AS23350US | SHELL3-SER - Shell Information Technology International, Inc. | — | — | 0 |
| AS23388US | DUANE-MORRIS-CHICAGO - Duane Morris | — | — | 0 |
| AS23417US | STORESONLINE-INC-2 - StoresOnline, Inc. | — | — | 0 |
| AS23432US | WATCHCOMM-EAST-OH - Watch Communications | — | — | 0 |
| AS23461US | DCCA-PHOENIX-DATA-CENTER - NTT DATA Services, LLC | — | — | 0 |
| AS23466US | KITTYHAWK-KDC1 - Kitty Hawk Corporation | — | — | 0 |
| AS23479US | TSPEC - Technology Specialists | — | — | 0 |
| AS23517US | MERIPLEX-2-AS - Meriplex Communications, Ltd. | — | — | 0 |
| AS23518US | ICANN - ICANN | — | — | 0 |
| AS25791US | SE-NET - Stack Exchange, Inc. | — | — | 0 |
| AS25897US | SERVERBEACH - Cogeco Peer 1 (USA) Inc. | — | — | 0 |
| AS25939US | COBA-3 - Commerzbank AG New York Branch | — | — | 0 |
| AS25949US | CISCOTTGOPS - Cisco Systems Inc. | — | — | 0 |
| AS26062US | KYN-GTS - Kyndryl | — | — | 0 |
| AS26177US | NETIQ-BELLEVUE - Attachmate Corp. | — | — | 0 |
| AS26179US | NETIQ-RALEIGH-1100 - Attachmate Corp. | — | — | 0 |
| AS26235US | TOSHI - Rzlynt llc | — | — | 0 |
| AS26240US | SSKC1 - STATE STREET | — | — | 0 |
| AS26278US | BLUEMILE-VOICE - Bluetone Communications, LLC. | — | — | 0 |
| AS26294US | NUAVLYBJTE - Panda Clouds LLC | — | — | 0 |
| AS26408US | CHARTER-26408-NA - Charter Communications LLC | — | — | 0 |
| AS26445US | OWL - 4096 SVCS LLC | — | — | 0 |
| AS26451US | FUTURE-WIRELESS-TECHNOLOGIES-OF-NEBRASKA - FUTURE WIRELESS TECHNOLOGIES OF NEBRASKA, INC. | — | — | 0 |
| AS26525US | NYCSCA - NYC SCHOOL CONSTRUCTION AUTHORITY | — | — | 0 |
| AS26536US | DYCOM - Dycom Industries, Inc. | — | — | 0 |
| AS26581US | IEX-MARKET-2 - IEX Group, Inc. | — | — | 0 |
| AS26691US | CIT-ASN-NA-01 - First-Citizens Bank & Trust Company | — | — | 0 |
| AS26750US | FSC-AS - Fayez Sarofim & Co., LLC | — | — | 0 |
| AS26896US | D102-COS-2 - Data102 | — | — | 0 |
| AS27032US | DNIC-ASBLK-27032-27159 - United States Department of Defense (DoD) | — | — | 0 |
| AS27035US | DNIC-ASBLK-27032-27159 - United States Department of Defense (DoD) | — | — | 0 |
| AS27045US | DNIC-ASBLK-27032-27159 - United States Department of Defense (DoD) | — | — | 0 |
| AS27061US | DNIC-ASBLK-27032-27159 - United States Department of Defense (DoD) | — | — | 0 |