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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 | 21,173 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 113.7M | 639 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,245 |
| 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 | 398 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 49.3M | 3,707 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.7M | 1,948 |
| AS701US | UUNET - Verizon Business | 43.6M | 1,000 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,420 |
| — |
| — |
| 0 |
| AS13421US | SBCIS-ABLNTX - AT&T Enterprises, LLC | — | — | 0 |
| AS13436US | INTERNET2-CONF - Internet2 | — | — | 0 |
| AS13442US | ZENLOGIC - Zenlayer Inc | — | — | 0 |
| AS13455US | ASGROUP1 - Reach Marketing LLC | — | — | 0 |
| AS13488US | 365DC-1 - BroadbandONE, LLC | — | — | 0 |
| AS13502US | VOYA-FINANCIAL - Voya Services Company | — | — | 0 |
| AS13633US | OOCL-MNL - OOCL (USA), Inc. | — | — | 0 |
| AS13669US | VRIS-AS-BLOCK - Verizon Business | — | — | 0 |
| AS13815US | TAI-ASN - Chieftain Capital Management Inc. | — | — | 0 |
| AS13859US | CERNER - Cerner Corporation | — | — | 0 |
| AS13891US | 21ST-CENTURY-ONCOLOGY-INC - GENESISCARE USA OF FLORIDA, LLC | — | — | 0 |
| AS13907US | NCR-HOSPITALITY - NCR Voyix Corporation | — | — | 0 |
| AS13952US | NCI-58-13952 - New College Institute | — | — | 0 |
| AS13962US | AS-HISPEED-1 - RiverCity Internet Group, L.L.C. | — | — | 0 |
| AS14053US | ASN-LWCL - Long Wharf Real Estate Partners LLC | — | — | 0 |
| AS14071US | PQ-CORPORATION - PQ Corporation | — | — | 0 |
| AS14082US | GOES - Global Online Electronic Services | — | — | 0 |
| AS14219US | ENTRYWAN - ENTRYWAN LLC | — | — | 0 |
| AS14273US | ONLINE-RESOURCES - Online Resources Corporation | — | — | 0 |
| AS14399US | HUBRIS2 - IdeaTek Telcom, LLC | — | — | 0 |
| AS14542US | CALPOP - CALPOP.COM, INC. | — | — | 0 |
| AS14557US | EGINITY - Eginity, Inc. | — | — | 0 |
| AS14573US | KEYSPANENERGY-NE1 - Keyspan Energy | — | — | 0 |
| AS14584US | BAKER-AND-TAYLOR - Baker & Taylor, Inc. | — | — | 0 |
| AS14596US | DCNET-ASN - DC-Net | — | — | 0 |
| AS14646US | FRANKLINCOVEY - Franklin Covey Co. | — | — | 0 |
| AS14682US | GGS - GGS Information Services | — | — | 0 |
| AS14683US | WILSHIREASSOCIATESINC - Wilshire Associates Incorporated | — | — | 0 |
| AS14719US | MICROSOFT-CORP-BCENTRAL - Microsoft Corporation | — | — | 0 |
| AS14824US | ZYNGA-01 - TAKE-TWO INTERACTIVE SOFTWARE, INC. | — | — | 0 |
| AS14838US | WIXCO-INC - Wix.Com, Inc. | — | — | 0 |
| AS14897US | PKS-INVESTMENTS - Purshe Kaplan Sterling Investments, Inc. | — | — | 0 |
| AS14944US | EMA-PRO - eMoney Advisor | — | — | 0 |
| AS15002US | DRUGSTORE - Drugstore.Com, Inc. | — | — | 0 |
| AS15070US | EDGELP - Edgestream Partners, L.P. | — | — | 0 |
| AS15089US | MASSMUTUAL - Massachusetts Mutual Life Insurance Company | — | — | 0 |
| AS15163US | MTD - MTD Products, Inc | — | — | 0 |
| AS15170US | MATCHNET - Spark Networks Limited | — | — | 0 |
| AS15255US | BISK - Bisk - Totaltape Publishing | — | — | 0 |
| AS15288US | NOKIA-NA - Nokia of America Corporation | — | — | 0 |
| AS16446US | M2NGAGE2 - M2ngage Telecommunications II Corp. | — | — | 0 |
| AS16512US | RACKIFI - Fiberifi | — | — | 0 |
| AS16535US | ECHOS-3 - Echostar Purchasing Corporation | — | — | 0 |
| AS16631US | COGENT-16631 - Cogent Communications, LLC | — | — | 0 |
| AS16734US | KYNDR-RTP - Kyndryl | — | — | 0 |
| AS16806US | AVLNA-INTERNET - AVL North America, Inc. | — | — | 0 |