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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) | 227.5M | 3,134 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 218.2M | 25,263 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 641 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,336 |
| 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.
32,247 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. | 44.8M | 2,004 |
| AS701US | UUNET - Verizon Business | 43.6M | 993 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,350 |
| SOUTHERNLINC-PACKETDATA-ASN2 - SouthernLINC Wireless |
| 1.5K |
| — |
| 6 |
| AS62582US | MJMTELECOM - Accel Wireless | 1.5K | — | 3 |
| AS35953US | VIRTEL-16 - NTT Global Networks Incorporated | 1.5K | — | 6 |
| AS18742US | ON24-SAC - ON24, Inc. | 1.5K | — | 3 |
| AS35876US | VOLTNET-01 -03 - VoltNet inc | 1.5K | — | 6 |
| AS22600US | SFTC-MAIL-FAILOVER - San Francisco Superior Court | 1.5K | 4 | 7 |
| AS53254US | USSCO-AS - Essendant Co. | 1.5K | — | 4 |
| AS9423US | SERVERKINGIOLLC-AS-AP - ServerKing.io, LLC | 1.5K | 4 | 9 |
| AS3474US | DNIC-AS-03474 - United States Department of Defense (DoD) | 1.5K | — | 6 |
| AS5237US | DNIC-ASBLK-05120-05376 - United States Department of Defense (DoD) | 1.5K | — | 6 |
| AS40321US | ESB - Emigrant Bank | 1.5K | — | 3 |
| AS21856US | NOKIA-ASN - Nokia of America Corporation | 1.5K | 32 | 7 |
| AS399852US | HDD-BROADBAND - HDD Broadband Inc. | 1.5K | 4.1K | 4 |
| AS33723US | LENNAR - Lennar Corporation | 1.5K | — | 3 |
| AS394002US | WONDERLINK-COMMUNICATIONS - Wonderlink Communications, LLC | 1.5K | — | 5 |
| AS33414US | KENTCOUNTYMI - Kent County Information Systems | 1.5K | — | 3 |
| AS11227US | AS-DALLAS - Morningstar, Inc. | 1.5K | — | 4 |
| AS19462US | USSCO-AS19462 - Essendant Co. | 1.5K | — | 4 |
| AS62630US | AS62630 - Husson University | 1.5K | — | 2 |
| AS399700US | MANSFIELD-COMMUNITY-FIBER - Mansfield Community Fiber, Inc | 1.5K | 4.6K | 5 |
| AS21945US | HARLANDCLARKE-AS - Harland Clarke Corp. | 1.5K | — | 5 |
| AS396970US | COMMANDLINK - CommandLink, LLC | 1.5K | 4.1K | 8 |
| AS398801US | NET-OPS-COMMUNICATIONS - Net Ops Communications, LLC | 1.5K | — | 3 |
| AS6337US | HIWAAY - HIWAAY INFORMATION SERVICES, INC. | 1.5K | — | 2 |
| AS260US | GTT-DXB - GTT Americas, LLC | 1.5K | 131.1K | 7 |
| AS216435US | PLIMMOBILE-AS Plim Mobile Telecom LLC | 1.5K | 7.9K | 41 |
| AS399374US | LERU - Le-Ru Telephone Company | 1.5K | — | 6 |
| AS40608US | HCTNEBRASKA - HERSHEY COOPERATIVE TELEPHONE CO | 1.5K | — | 2 |
| AS54301US | IPHASE-AS - Interphase Communications, Inc. | 1.5K | — | 6 |
| AS27282US | ASNIC - North Idaho College | 1.5K | 1 | 4 |
| AS36544US | BWINPARTY-US-01 - BWIN.PARTY ENTERTAINMENT (NJ), LLC | 1.5K | — | 6 |
| AS36815US | INTERNETFX-NETWORK - Internet FX | 1.5K | 768 | 8 |
| AS11246US | AILUJ-AS-A - Ailuj Inc. | 1.5K | — | 3 |
| AS395778US | PBC-QNC-WA - Premera Blue Cross | 1.5K | — | 3 |
| AS17103US | JRC-NETWORK-SERVICES - Jensen Research Corporation | 1.5K | 16 | 4 |
| AS10880US | YAHOO-AN2 - Yahoo Holdings Inc. | 1.5K | 6 | 12 |
| AS11169US | ARQUENZO-KCMO-01 - Arquenzo LLC | 1.5K | 4.1K | 5 |
| AS32739US | CHRISTIANACARE-AS-1 - Christiana Care Health Services, Inc. | 1.5K | — | 6 |
| AS19023US | TCSL-38-19023 - Terminix | 1.5K | — | 6 |
| AS394548US | GIGSTREEM-BOS - GiGstreem | 1.5K | — | 6 |
| AS19809US | ASNBLK-VTLA2 - NTT Global Networks Incorporated | 1.5K | — | 6 |
| AS54697US | EVERBANK-NA - EverBank, N.A. | 1.5K | — | 6 |
| AS20220US | INDIAN-WELLS - Indian Wells Valley ISP | 1.5K | 4.1K | 4 |
| AS36062US | DOUBLE-VERIFY - DoubleVerify, Inc. | 1.5K | — | 5 |
| AS36020US | WEATHER-COMPANY - The Weather Company | 1.5K | — | 6 |
| AS22075US | AS-OUTBRAIN - Outbrain, Inc. | 1.5K | — | 6 |
| AS395391US | TPNA-AS - Talking Platforms, LLC | 1.5K | — | 6 |