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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 | 21,015 |
| 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 | 3,584 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.7M | 1,935 |
| AS701US | UUNET - Verizon Business | 43.6M | 1,000 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.7M | 4,561 |
| 12.3K |
| 65.5K |
| 34 |
| AS16913US | LOYNO-EDU - Loyola University New Orleans | 12.3K | — | 3 |
| AS6368US | NETNITCO-ASN - Northwestern Indiana Telephone Co. | 12.3K | 65.5K | 3 |
| AS26251US | SIRIUS-1 - Prospeed.Net,Inc. | 12.3K | — | 3 |
| AS11325US | AS11325 - Altus Communications Inc. | 12.3K | — | 6 |
| AS698US | ASN-UIUC-REGION-AS - University of Illinois | 12.3K | 1 | 3 |
| AS398977US | PACIFICU-OREGON - Pacific University | 12.3K | — | 2 |
| AS10376US | WELLSFARGO-10372-10376 - Wells Fargo Bank, N.A. | 12.3K | — | 27 |
| AS14327US | PGE-ONLINE - Portland General Electric Company | 12.3K | — | 3 |
| AS18683US | MWFN - Midwest Fiber Networks, LLC | 12K | 65.5K | 6 |
| AS19212US | PRTC-LAURENS - Piedmont Rural Telephone Cooperative, Incorporated | 12K | 65.5K | 48 |
| AS395839US | HOSTKEY-USA - HOSTKEY | 12K | 65.5K | 48 |
| AS33545US | BARDCOLLEGE - Bard College | 12K | 256 | 10 |
| AS393737US | PLAINSINTERNET - Cpuonsite | 12K | — | 29 |
| AS14971US | PINETEL - Pine Telephone System, Inc. | 12K | — | 6 |
| AS395719US | EMERALD - Emerald Broadband, LLC | 12K | 65.5K | 11 |
| AS11280US | SNAPPYDSL-ASN1 - SNAPPYDSL.NET | 12K | — | 9 |
| AS393946US | INTERSIL-SEMI - Renesas Electronics America Inc. | 12K | — | 17 |
| AS33211US | RISINGNET - RisingNet, LLC | 12K | 3 | 24 |
| AS8159US | KANSASNET - KansasNet / Fox Business Systems | 12K | — | 10 |
| AS394977US | T2EE-AS1 - TAKE-TWO INTERACTIVE SOFTWARE, INC. | 12K | 5 | 52 |
| AS4556US | PACKETFABRIC-AS4556 - PacketFabric, Inc. | 12K | 65.5K | 48 |
| AS7725US | COMCAST-7725 - Comcast Cable Communications, LLC | 12K | 121 | 157 |
| AS13709US | CUMULUS-MEDIA-INC - Cumulus Media, Inc. | 12K | — | 16 |
| AS32440US | LONI - Louisiana Board of Regents/Louisiana Optical Network Initiative (LONI) | 12K | — | 31 |
| AS32016US | INTEGRA-WCI - Allstream Business US, LLC | 11.8K | — | 8 |
| AS20030US | MCCLI-ARTELCO - Artelco | 11.8K | — | 19 |
| AS26960US | MICHELIN-NORTH-AMERICA-I1 - MICHELIN NORTH AMERICA | 11.8K | — | 15 |
| AS14445US | PEACEWEB-CLOUD - PeaceWeb | 11.8K | 49 | 95 |
| AS395301US | RESOUND-NET - Resound Networks, LLC | 11.8K | 14 | 55 |
| AS14858US | HISNET - Hanson Information Systems, Inc. / Family Net | 11.8K | 65.6K | 40 |
| AS62682US | HILLBILLY-WIRELESS - Hillbilly Wireless INC. | 11.8K | — | 25 |
| AS398844US | COMELEC-DUB-01 - COMELEC SERVICES, INC | 11.8K | — | 8 |
| AS16633US | I-3 - N-able Technologies, Inc. | 11.8K | 3 | 45 |
| AS18851US | ICORE-ASN-1 - iCore Networks, Inc. | 11.8K | — | 7 |
| AS63150US | BAGE - BAGE CLOUD LLC | 11.8K | 2.8K | 98 |
| AS394453US | ITO-DG - Ensono LP | 11.8K | — | 10 |
| AS16710US | PBS - Public Broadcasting Service | 11.8K | — | 15 |
| AS14626US | COLUMBIA-HCA - Columbia/HCA Healthcare, Inc. | 11.8K | — | 44 |
| AS395831US | MERAKI - Meraki LLC | 11.8K | 10 | 52 |
| AS14938US | BET-AS - Bullseye Telecom | 11.8K | — | 46 |
| AS21808US | PRLSS - Peerless Network Inc | 11.8K | 65.5K | 20 |
| AS399693US | NCN-AS - Northwest Communications | 11.8K | 2.3K | 29 |
| AS39944US | TNA - Telecom North America Inc. | 11.8K | 589.8K | 39 |
| AS398391US | PERIMETER-81-LLC - Perimeter 81 LLC | 11.8K | — | 46 |
| AS46867US | AUDEAMUS - Sebastian | 11.8K | — | 11 |
| AS35937US | DATABANK-MARQUISNET - MarquisNet | 11.8K | 1 | 9 |