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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. | 211.1M | 21,094 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 113.7M | 638 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,247 |
| 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 | 3,709 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.7M | 1,959 |
| AS701US | UUNET - Verizon Business | 43.6M | 1,000 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,423 |
| — |
| — |
| 0 |
| AS393980US | BRONX-ASN - Monroe College, LTD. | — | — | 0 |
| AS394075US | CCM-NET3 - Collectivei | — | — | 0 |
| AS394180US | DIGITALSYSTEM - Digitalsystem Technology Inc. | — | — | 0 |
| AS394228US | FANDOR - Fandor | — | — | 0 |
| AS394268US | SIHC - Sonesta International Hotels Corporation | — | — | 0 |
| AS394281US | XHOSTSERVER - Xhostserver, LLC | — | — | 0 |
| AS394406US | DVD-IPV4-207 - Netflix, Inc | — | — | 0 |
| AS394591US | UKG-99 - ULTIMATE SOFTWARE GROUP | — | — | 0 |
| AS394605US | IPBAND - IP-Band Telecommunications LLC | — | — | 0 |
| AS394615US | YAHOO-NYA - Yahoo Holdings Inc. | — | — | 0 |
| AS394657US | GFNB - Glens Falls National Bank and Trust Company | — | — | 0 |
| AS394739US | KCG-AS - KCG | — | — | 0 |
| AS395005US | CITY-OF-EASTON - City of Easton | — | — | 0 |
| AS395179US | CENTE-5 - Centene Corporation | — | — | 0 |
| AS395360US | FLIGHTAWARE-01 - FlightAware | — | — | 0 |
| AS395364US | IN-THE-SWIM - In The Swim | — | — | 0 |
| AS395371US | STATE-OF-IDAHO-3 - State of Idaho | — | — | 0 |
| AS395438US | TSYS-EQUINIX-DC5 - Global Payments Inc. | — | — | 0 |
| AS395564US | ALIGNAY-01 - James Alignay, Sole Proprietorship | — | — | 0 |
| AS395579US | MYTEK-NETWORK-SOLUTIONS - Mytek Network Solutions, LLC | — | — | 0 |
| AS395602US | MOZILLA-MTV2 - Mozilla Corporation | — | — | 0 |
| AS395738US | DNS-34 - Oracle Corporation | — | — | 0 |
| AS395781US | NGTS-NVG - nVision | — | — | 0 |
| AS395873US | INTERACTIONS-2 - Interactions Corporation | — | — | 0 |
| AS395886US | KURUN-AS-US - KURUN CLOUD INC | — | — | 0 |
| AS395925US | IPROYAL - IPRoyal LLC | — | — | 0 |
| AS395946US | LAFS - Los Angeles Film Schools, LLC | — | — | 0 |
| AS396013US | HYATT-CORP2 - Hyatt Corporation | — | — | 0 |
| AS396025US | CITYOFLOVELAND-AS - City of Loveland | — | — | 0 |
| AS396092US | ROBINS-KAPLAN-LLP - Robins Kaplan LLP | — | — | 0 |
| AS396140US | SECURLY - Securly, Inc | — | — | 0 |
| AS396156US | CLE-ORL-DC01 - Christie Lites Enterprises USA, LLC | — | — | 0 |
| AS396232US | AMSCOCOMCAST - Amsco Windows | — | — | 0 |
| AS396248US | E470 - E-470 Public Highway Authority | — | — | 0 |
| AS396342US | WLF-ASN - W Lee Flowers & CO, Inc. | — | — | 0 |
| AS396370US | SKYCREEK-CORP - Skycreek Corporation | — | — | 0 |
| AS396444US | OSI-CENTURY-205 - OSI Industries, LLC | — | — | 0 |
| AS396460US | BART-AS - San Francisco Bay Area Rapid Transit District | — | — | 0 |
| AS396543US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS396556US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS396563US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS396566US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS396570US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS396573US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS396599US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS396604US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |