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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. | 210.9M | 20,988 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 113.7M | 639 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,222 |
| 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 | 48M | 3,578 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.7M | 1,934 |
| AS701US | UUNET - Verizon Business | 43.6M | 1,000 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.3M | 4,544 |
| 21K |
| — |
| 23 |
| AS23376US | EN-23376 - EllumNet LLC | 21K | 131.1K | 10 |
| AS395336US | MACST-ATL - MacStadium, Inc. | 20.7K | 8.2K | 45 |
| AS17012US | PAYPAL - PayPal, Inc. | 20.7K | 16 | 24 |
| AS11736US | USD - University of South Dakota | 20.7K | — | 9 |
| AS23418US | DARIENAS1 - The Darien Telephone Co. Inc. | 20.7K | — | 4 |
| AS20330US | NYS-UNIFIED-COURTS - New York State Unified Court System | 20.7K | — | 9 |
| AS46719US | COMCELL4236207 - COMCELL INC. | 20.7K | — | 22 |
| AS36687US | WILINE - WiLine Networks Inc. | 20.7K | 65.5K | 11 |
| AS62651US | NETPROTECT-DP - Strong Technology, LLC. | 20.7K | 14.3K | 120 |
| AS26978US | QTS-PHX - Quality Technology Services, LLC | 20.7K | 65.5K | 9 |
| AS63414US | DAKTEL-AS1 - Dakota Central Telecommunications Cooperative | 20.7K | 65.5K | 18 |
| AS394474US | WHITELABELCOLO393 - WhiteLabelColo | 20.7K | — | 12 |
| AS19036US | LORAL-CYBERSTAR - Telesat Network Services Inc | 20.7K | — | 4 |
| AS13728US | DPCOM-ASN05222010 - D&P Communications, Inc. | 20.7K | 65.5K | 6 |
| AS398991US | X99-US - X99 | 20.7K | 37.9K | 67 |
| AS16503US | ZAYO-16503 - Zayo Bandwidth | 20.7K | — | 4 |
| AS19113US | DUKE-ENERGY - Duke Energy Corporation | 20.7K | — | 14 |
| AS46811US | SILVERIP-ASN - SilverIP Communications Inc. | 20.7K | 65.5K | 44 |
| AS3112US | OARNET-AS-1 - OARnet | 20.5K | — | 25 |
| AS400706US | HEART-OF-IOWA-UNION - Heart of Iowa Communications Cooperative | 20.5K | 66.8K | 25 |
| AS27422US | TNSTATE - Tennessee State University | 20.5K | — | 3 |
| AS19963US | DOSUB-1 - Dutchess County BOCES | 20.5K | — | 5 |
| AS21828US | TCOE - Tulare County Office of Education | 20.5K | — | 3 |
| AS12133US | LISCO - Local Internet Service Company | 20.5K | — | 2 |
| AS17389US | IHS-GROUP - Information Handling Services | 20.5K | — | 4 |
| AS19058US | IRTC-NET - Illinois Rural Telecommunication Co. | 20.5K | 65.5K | 32 |
| AS40623US | GFDL - Office of Oceanic and Atmospheric Research - Geophysical Fluid Dynamics Laboratory | 20.5K | 17 | 4 |
| AS7258US | CATALOG-AS7258 - Webhero, Inc. | 20.5K | — | 2 |
| AS40092US | ONIAAS - HostPapa | 20.5K | 327.7K | 28 |
| AS53292US | MWAY - ManagedWay | 20.5K | 65.5K | 41 |
| AS23141US | DTCNET - Doylestown Communications Inc | 20.5K | — | 3 |
| AS10615US | PAINEWEBBER-ASN - UBS AG | 20.5K | — | 60 |
| AS18897US | MONTANA-SKY-NETWORKS-INC - Montana Sky Networks, Inc. | 20.5K | 131.1K | 17 |
| AS64236US | UNREAL-SERVERS - UnReal Servers, LLC | 20.5K | 921.6K | 33 |
| AS14038US | DRAKE-UNIVERSITY - Drake University | 20.5K | 1 | 35 |
| AS33055US | BCC-65-182-96-0-PHX - Brinkster Communications Corporation | 20.5K | — | 8 |
| AS32477US | ONLINE-TECH-LLC2 - Otava, LLC | 20.5K | 4.1K | 22 |
| AS3853US | WHIDBEY - Whidbey Telephone Company | 20.5K | 65.5K | 4 |
| AS3389US | FORDSRL-AS - Ford Motor Company | 20.5K | 2 | 9 |
| AS399575US | BEACON-BROADBAND - Beacon Broadband, Inc. | 20.5K | 66.6K | 26 |
| AS25697US | UPCLOUDUSA - UpCloud USA Inc | 20.5K | 147.5K | 27 |
| AS395567US | BLOXNET - dcBLOX, Inc. | 20.2K | 4.1K | 44 |
| AS32654US | TWRS-CHI - Towerstream I, Inc. | 20.2K | — | 17 |
| AS54519US | US-SIGNAL-WI02 - US Signal Company, L.L.C. | 20.2K | 256 | 11 |
| AS36426US | ISOTRASN - IsoTropic Networks, Inc. | 20.2K | — | 16 |
| AS22647US | CONSOLIDATED FLORIDA - Fidium | 20.2K | — | 31 |