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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. | 211.2M | 21,141 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 113.7M | 638 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,234 |
| 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 | 368 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 48.4M | 3,591 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.7M | 1,937 |
| AS701US | UUNET - Verizon Business | 43.6M | 1,000 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,476 |
| 3.1K |
| — |
| 9 |
| AS399970US | ARIN-RS-RND - ARIN Routing Security | 3.1K | 121.3K | 96 |
| AS54417US | STIMULUS-TECHNOLOGIES - Stimulus Technologies | 3.1K | — | 9 |
| AS30021US | SNWL-COLO-SJL - SonicWALL, Inc. | 3.1K | 1 | 13 |
| AS23132US | CHARTER-23132-SOUTHERN-NEW-ENGLAND-C3 - Charter Communications LLC | 3.1K | 288 | 7 |
| AS7194US | BWP - City of Burbank | 3.1K | 65.5K | 12 |
| AS8757US | NSFOCUS NSFOCUS, Inc. | 3.1K | 6 | 18 |
| AS1088US | FASTBRIDGE-FIBER-RDNG-PA-01 - FastBridge Fiber | 3.1K | 65.5K | 6 |
| AS46203US | PNSHS - Fidelity National Information Services, Inc. | 3.1K | — | 12 |
| AS54381US | SACATECH - SACA Technologies, Inc. | 3.1K | — | 12 |
| AS19949US | FNFISP - FNFISP | 3.1K | 257 | 14 |
| AS18892US | MCCORMACK-NETWORKS - Ellington Telephone Company | 3.1K | — | 5 |
| AS21750US | CPOINT-NET-1 - CPOINT | 3.1K | — | 6 |
| AS22322US | OBERLIN-NET - CABLE CO-OP | 3.1K | — | 12 |
| AS54084US | REGION14ESC - REGION 14 EDUCATION SERVICE CENTER | 3.1K | — | 2 |
| AS27631US | PANGAEA - PANGAEA | 3.1K | — | 12 |
| AS26080US | IMPREZZIO-PHX - Imprezzio Inc | 3.1K | 16 | 3 |
| AS36724US | HCAS-3 - Hanson Communications, Inc. | 3.1K | — | 4 |
| AS395403US | NS1-INFRA - NSONE Inc | 3.1K | 18 | 30 |
| AS395927US | MILEHIGHNETWORKS - Mile High Networks, LLC | 3.1K | — | 2 |
| AS394135US | SECURITAS-ELECT-SECURITY - Securitas Electronic Security, Inc. | 3.1K | — | 11 |
| AS31978US | PEAKWIFI - PeakWiFi LLC | 3.1K | — | 12 |
| AS32800US | MTELCO - Moundridge Telephone Co. | 3.1K | — | 7 |
| AS16931US | GLOBAL-PAYMENTS-1 - Global Payments, Inc. | 3.1K | — | 10 |
| AS399804US | HOSTODO - Hostodo | 3.1K | 4 | 16 |
| AS63210US | FC2-INC-2 - FC2 Inc | 3.1K | 256 | 6 |
| AS31957US | AGILE - Agile Networks | 3.1K | — | 12 |
| AS267US | NETHER-NET - Nether.Net | 3.1K | 4.1K | 6 |
| AS23022US | DSU - DELAWARE STATE UNIVERSITY | 3.1K | — | 5 |
| AS157US | HPE-15 - HEWLETT PACKARD ENTERPRISE COMPANY | 3.1K | — | 2 |
| AS54340US | NTS-LAKECHARLES-01 - Vexus Fiber | 3.1K | — | 4 |
| AS14397US | AS-DNS - 1st Class Hosting, LLC | 3.1K | — | 12 |
| AS63344US | DKM2-ARIN - The Reynolds and Reynolds Company | 3.1K | — | 11 |
| AS398297US | FROG - FROG HOLDINGS, LLC | 3.1K | — | 3 |
| AS21787US | CERIDIAN - CERIDIAN | 3.1K | — | 6 |
| AS22629US | NORWORLD - NORTHWESTERN CORPORATION | 3.1K | — | 12 |
| AS33556US | HOME-TELEPHONE-ASN - Home Telephone Co. | 3.1K | 65.5K | 3 |
| AS53861US | AS-KGIX - KGIX | 3.1K | 65.5K | 3 |
| AS22969US | AFS-ATL - Zayo Bandwidth | 3.1K | — | 2 |
| AS214155US | Saily-AS Saily Inc. | 3.1K | — | 12 |
| AS399631US | STREAMICAN - StreamICan | 3.1K | — | 12 |
| AS394492US | USEI - US Electrodynamics, Inc. | 3.1K | — | 12 |
| AS64261US | ASN-CVILLE-FIBERCOM - City of Cartersville | 3.1K | — | 7 |
| AS23484US | PACENET - Pace University | 3.1K | — | 12 |
| AS400387US | FLYING-BULL-INTERNET - Flying Bull Internet, LLC | 3.1K | — | 4 |
| AS399777US | MCCNO - NEW ORLEANS PUBLIC FACILITY MANAGEMENT, INC. | 3.1K | — | 2 |
| AS47022US | WILSON-TELEPHONE-COMPANY-INC - Wilson Telephone Company Inc | 3.1K | — | 5 |