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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 | 23,924 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 644 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.6M | 1,299 |
| 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.
32,140 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 230 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 437 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.5M | 3,881 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 1,992 |
| AS701US | UUNET - Verizon Business | 43.6M | 995 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,310 |
| WITTE-1 - Wittenberg Telephone Company |
| 9.5K |
| — |
| 23 |
| AS210329US | CloudWebManage-UK-1 Kamatera Inc | 9.5K | 2 | 39 |
| AS23126US | CENTURYLINK-CLEC-VARIOUS-SHARED-USE-AND-LOCATIONS - CenturyLink Communications, LLC | 9.5K | — | 18 |
| AS11996US | LOBOIS - Lobo Internet Services, Ltd | 9.5K | 65.5K | 5 |
| AS400784US | RECTITUDE-WOODLANDS - Rectitude 369, LLC | 9.5K | — | 6 |
| AS63111US | ACE-US - ACE INA HOLDINGS INC. | 9.5K | — | 29 |
| AS21840US | NET3 - WiredISP Inc. | 9.5K | — | 37 |
| AS399310US | SOUTH-SOUND-911 - South Sound 911 | 9.5K | — | 26 |
| AS26311US | RANCH-WIFI - Ranch WiFi LLC | 9.5K | — | 27 |
| AS30341US | SCTA-ASN - South Central Telephone Association | 9.5K | — | 3 |
| AS21808US | PRLSS - Peerless Network Inc | 9.5K | 65.5K | 11 |
| AS32360US | MONROE-1-BOCES - Monroe #1 BOCES | 9.5K | 1 | 5 |
| AS722US | DNIC-ASBLK-00721-00726 - United States Department of Defense (DoD) | 9.5K | — | 7 |
| AS11352US | IOMAR-11352 - Iomartcloud Inc. | 9.5K | 69.6K | 17 |
| AS6913US | HCSNET-ASNBLK - Hayes Computer Systems | 9.5K | — | 4 |
| AS29843US | FIVEA-AS1 - Five Area Systems, LLC | 9.5K | 65.5K | 10 |
| AS11488US | BBN-GW - BBN Technologies Corp. | 9.5K | — | 7 |
| AS46342US | AJGCO - Arthur J. Gallagher & Co. | 9.5K | — | 21 |
| AS394868US | GLN-LOOP - Greenlight Networks, LLC | 9.5K | 65.5K | 28 |
| AS23532US | IOVZ-NETWORKS - IOVZ NETWORKS INC | 9.5K | 1.5M | 83 |
| AS394752US | AVATIVE-FIBER - Avative Fiber | 9.5K | 65.5K | 8 |
| AS13654US | KC-WEB-LLC - KC Web, Inc. | 9.5K | — | 34 |
| AS17064US | TISD-VIC - TISD, Inc. | 9.5K | — | 23 |
| AS55083US | NUMEREX - Numerex Corp | 9.5K | 66K | 8 |
| AS11537US | INTERNET2-RESEARCH-EDU - Internet2 | 9.3K | 65.5K | 28 |
| AS14161US | LANDOLAKES - Land O'Lakes, Inc. | 9.2K | — | 9 |
| AS209394US | MWS_RNPP_LON Kyndryl, Inc. | 9.2K | — | 16 |
| AS393508US | VALLEYINTERNET - PERSONAL NETWORK COMPUTING | 9.2K | — | 26 |
| AS11038US | SALISH-NETWORKS - Salish Networks, Inc. | 9.2K | — | 12 |
| AS393262US | TODYL-CLOUD - Todyl, Inc. | 9.2K | — | 36 |
| AS36600US | FROEDTERT-COMMUNITY-HELATH - Froedtert Memorial Lutheran Hospital, Inc. | 9.2K | — | 4 |
| AS22360US | REDHAT-2 - Red Hat, Inc. | 9.2K | 258 | 8 |
| AS33570US | CLOUDPATH - Cloudpath | 9.2K | — | 21 |
| AS46416US | BANKONIT - BankOnIT, L.L.C. | 9.2K | 16 | 13 |
| AS11019US | HAPROXY-TECHNOLOGIES - HAProxy Technologies, Inc. | 9.2K | 21 | 50 |
| AS4133US | BITWISE - Bitwise Internet Technologies, Inc. | 9.2K | — | 4 |
| AS3800US | AS3800 - AS3800 LLC | 9.2K | — | 36 |
| AS33287US | COMCAST-33287 - Comcast Cable Communications, LLC | 9.2K | 309 | 342 |
| AS32307US | VIAERO-WIRELESS-GPRS - NE COLORADO CELLULAR INC | 9.2K | 512 | 16 |
| AS399091US | INTERDATALINK-INC - Inter Data Link Inc | 9.2K | 65.5K | 12 |
| AS32667US | 7-ELEVEN-NETWORK - 7-Eleven, Inc. | 9.2K | — | 17 |
| AS395226US | SACRAMENTO-COE - Sacramento County Office of Education | 9.2K | 1 | 35 |
| AS23394US | PSPINC-BDC - Pacific Software Publishing, Inc. | 9.2K | — | 4 |
| AS54155US | GREENCLOUD - Green Cloud Technologies,LLC | 9.2K | — | 29 |
| AS16411US | NREL-AS-NATIONAL-RENEWABLE-ENERGY-LABORATORY - National Renewable Energy Laboratory | 9.2K | 1 | 5 |
| AS53274US | SKYRUNNER-INC - Skyrunner, Inc. | 9.2K | 513 | 28 |
| AS19043US | ONEBEACONINSURANCEGROUP - OneBeacon Insurance Group LTD | 9.2K | — | 4 |