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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 | 3,133 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 218M | 24,540 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 644 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.6M | 1,305 |
| 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.
32,187 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 232 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 437 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.5M | 3,885 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 2,002 |
| AS701US | UUNET - Verizon Business | 43.6M | 993 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,362 |
| 256 |
| — |
| 1 |
| AS30434US | LOEWS - LOEWS CORPORATION | 256 | — | 1 |
| AS36127US | MCPS - Miller Canfield | 256 | 1 | 2 |
| AS394175US | 3NG-NET1-MIA - RingLogix LLC | 256 | — | 1 |
| AS14175US | HAWORTH - HAWORTH | 256 | — | 1 |
| AS32646US | LPC-ASN - Long Pond Capital, LP. | 256 | — | 1 |
| AS93US | NTTA-93 - NTT America, Inc. | 256 | 1 | 2 |
| AS401437US | NEXTGUARD-HOSTING - NextGuard Solutions, Inc. | 256 | — | 1 |
| AS401782US | BOKU-ASN-01 - Boku, Inc. | 256 | — | 1 |
| AS63312US | BUTTERNUT-ASN - Community Financial System, Inc. | 256 | — | 1 |
| AS40521US | BLUEFIN-TRADING - Bluefin Trading, LLC | 256 | — | 1 |
| AS36311US | CCU-ATT-01 - Capital Credit Union | 256 | — | 1 |
| AS62800US | CIRRUS-AIRCRAFT - Cirrus Design Corporation | 256 | — | 1 |
| AS53946US | HMNMH - Henry Mayo Newhall Memorial Hospital | 256 | — | 1 |
| AS396015US | CRESTLINE-NETWORKS - Crestline Networks | 256 | 18 | 4 |
| AS393717US | PUPPET - Puppet, Inc. | 256 | 1 | 2 |
| AS396849US | KPRC - GRAHAM MEDIA GROUP, HOUSTON, INC. | 256 | — | 1 |
| AS397129US | LIFESCAN-GLOBAL-CORP - LifeScan Global Corporation | 256 | — | 1 |
| AS1096US | IZUMA-PROD-1 - Izuma Networks Inc. | 256 | — | 1 |
| AS63012US | EBRSO - East Baton Rouge Sheriff | 256 | — | 1 |
| AS25775US | GLADSON-LISLE - Gladson, LLC | 256 | — | 1 |
| AS399213US | VAGARO - Vagaro | 256 | — | 1 |
| AS218739US | ORG-OCL44-AS Orbis Connect LLC | 256 | — | 1 |
| AS31750US | METHODIST-HEALTHCARE - Methodist Hospital of Memphis | 256 | — | 1 |
| AS36115US | AS-DCPA - Denver Center for the Performing Arts | 256 | — | 1 |
| AS22345US | SOLIX-INC - Solix, Inc. | 256 | — | 1 |
| AS53505US | DRCFA - Huntington Place | 256 | — | 1 |
| AS1650US | CAMBRIDGEMA-PUBLIC-SCHOOLS - Cambridge Public Schools | 256 | — | 1 |
| AS397483US | ACBO-185 - UNIVERSAL HEALTH SERVICES | 256 | — | 1 |
| AS15134US | PWCSA - Prince William County Service Authority | 256 | — | 1 |
| AS63449US | SEABOARDMAIRNE-AS - Seaboard Marine, Ltd. Inc. | 256 | — | 1 |
| AS19469US | JSL-ASN-01 - Jeanswear Services LLC | 256 | — | 1 |
| AS36835US | NMF4L-1500 - Nugget Market | 256 | — | 1 |
| AS401401US | UNREDACTED-NOISENET - Unredacted Inc | 256 | 1 | 2 |
| AS402247US | FLEW - flew llc | 256 | 18 | 4 |
| AS30363US | GLOBALRESPONSEUSA - Global Response Corporation | 256 | — | 1 |
| AS29797US | LIFEYIELD-1 - SEI Investments Developments, INC | 256 | — | 1 |
| AS32533US | JMLS - The John Marshall Law School | 256 | — | 1 |
| AS400362US | HYDRA-HOST - Hydra Host, Inc. | 256 | 1 | 2 |
| AS25760US | MLNX-US - Mellanox Technologies | 256 | — | 1 |
| AS400901US | KLG-DATACENTER - Keller Logistics Group, INC | 256 | — | 1 |
| AS53758US | INVALID-NETWORK - Invalid Network | 256 | 16 | 2 |
| AS395104US | DKM5-ARIN - The Reynolds and Reynolds Company | 256 | — | 1 |
| AS33191US | NOTION-WEB - Notion Labs, Inc. | 256 | 1 | 2 |
| AS26897US | EDF-MANCM - Marex Capital Markets, Inc. | 256 | — | 1 |
| AS394946US | SAP-CONCUR-BV - SAP America Inc. | 256 | — | 1 |
| AS20344US | BILLERICAPS-MA-ASN - Billerica Public Schools | 256 | 1 | 2 |