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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) | 227.4M | 3,133 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 217.9M | 25,270 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 642 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.7M | 1,323 |
| 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.
32,193 autonomous systems registered to United States. Click an AS for detail.
| 72.9M |
| 229 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 437 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.6M | 3,900 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.9M | 2,009 |
| AS701US | UUNET - Verizon Business | 43.6M | 993 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.5M | 4,230 |
| 6.1K |
| 65.5K |
| 6 |
| AS36827US | PBTC-ARL - PINE BELT TELEPHONE CO | 6.1K | 65.5K | 3 |
| AS32575US | DIGICERT - DigiCert, Inc. | 6.1K | 257 | 18 |
| AS394998US | LAKELAND-INTERNET - LakeLand Internet LLC | 6.1K | 65.5K | 9 |
| AS19982US | TWRS-FL - Natural Wireless, LLC | 6.1K | 1 | 5 |
| AS398413US | MIAMI-DADE-COUNTY-ASN - Miami-Dade County | 6.1K | — | 17 |
| AS19919US | VSW - VA SkyWire, LLC | 6.1K | 1M | 3 |
| AS397293US | INFINIUM - Victoria Electric Cooperative | 6.1K | — | 7 |
| AS395924US | GC-AMERICA - Globecast America | 6.1K | — | 9 |
| AS47054US | JETWASN - JetWire, INC | 6.1K | — | 11 |
| AS40564US | VOCOM-LAX-QUINBY-1 - VOCOM International Telecommunication, INC. | 6.1K | 4.1K | 28 |
| AS54036US | CHES-NET - Clean Harbors Environmental Services, Inc. | 6.1K | — | 21 |
| AS400381US | CENTRICTX-ASN - Centric Fiber Texas, LLC | 6.1K | 65.5K | 16 |
| AS17350US | MOODYS - Moody's Corp. | 6.1K | — | 21 |
| AS25674US | MT-1392-25674 - Lingo Telecom, LLC | 6.1K | — | 20 |
| AS22280US | ENLIGHTENED-BY-WOODRUFF-ELECTRIC-LLC - Enlightened by Woodruff Electric, LLC | 6.1K | 65.5K | 10 |
| AS26088US | INLANDTELEPHONE - Inland Internet | 6.1K | — | 4 |
| AS22283US | SIDLEY - Sidley Austin LLP | 6.1K | — | 24 |
| AS53280US | PROMEDICA - The Toledo Hospital | 6.1K | 1 | 21 |
| AS399821US | LCREMC - LaGrange County Rural Electric Membership Corporation | 6.1K | 65.5K | 9 |
| AS4497US | UPSTEL-NET - Upsala Co-operative Telephone Association | 6.1K | — | 5 |
| AS33284US | LBI-ASN - LBiSat, LLC | 6.1K | — | 24 |
| AS6140US | TWO-P - Two P | 6.1K | 4.1K | 9 |
| AS63298US | FATBEAM-TEKFINITY - Fatbeam, LLC | 6.1K | — | 12 |
| AS26091US | INDDC - Indiana Data Center, LLC | 6.1K | — | 3 |
| AS40555US | CONNECTTO - ConnectTo Communications, Inc | 6.1K | 65.5K | 5 |
| AS397651US | SNEAKER-SERVER - Sneaker Server, LLC | 6.1K | 65.5K | 25 |
| AS395466US | GLOBALNET - Global Net | 6.1K | 65.5K | 4 |
| AS55290US | DTCC-CDZ-CVO - Depository Trust & Clearing Corporation | 6.1K | — | 24 |
| AS398291US | AS-PHREESIA-1 - Phreesia, Inc. | 6.1K | 1 | 19 |
| AS395534US | SYRACUSE-CITY-SCHOOL-DISTRICT-10 - Syracuse City School District | 6.1K | — | 6 |
| AS27292US | RESMED-AMR-AS - ResMed Corp. | 6.1K | — | 6 |
| AS26851US | PBCC - Palm Beach State College | 6.1K | — | 5 |
| AS12155US | AS-HMPL - Henderson Municipal Power & Light | 6.1K | 4.1K | 3 |
| AS393230US | DM-TECH-INTERNET - DM-Tech Internet | 6.1K | — | 10 |
| AS29888US | UNUMGROUP-AS - Unum Group | 6.1K | — | 14 |
| AS53834US | DINCL - dinCloud Inc. | 6.1K | 32.8K | 10 |
| AS14016US | CAPCON-NETWORK-LLC - Capcon Networks | 6.1K | 4 | 12 |
| AS63251US | METRO-WIRELESS - Metro Wireless International, Inc. | 6.1K | — | 12 |
| AS1321US | ANSBB-ASNNET-1 - Verizon Business | 6.1K | 10 | 31 |
| AS53971US | PDFIBER-LLC - PD Fiber, LLC | 6.1K | — | 4 |
| AS397377US | ESTES-PARK - Town of Estes Park | 6.1K | — | 7 |
| AS53730US | RAILHEAD - Railhead, Inc | 6.1K | 65.5K | 12 |
| AS36146US | ARKWEST-COMMUICATIONS - Arkwest Communications Inc | 6.1K | 4.1K | 25 |
| AS401909US | MINRTT - MinRTT Inc | 6.1K | 65.5K | 10 |
| AS17163US | AFGINC-1 - Great American Insurance Company | 6.1K | — | 8 |
| AS20125US | CAMPUS - Luther Seminary | 6.1K | — | 2 |