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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 | 3,133 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 219M | 23,666 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 645 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,361 |
| 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.
32,363 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 234 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 439 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.8M | 3,911 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 45M | 2,046 |
| AS701US | UUNET - Verizon Business | 43.6M | 996 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.8M | 4,491 |
| ANIXTER-INC - ANIXTER INC. |
| 3.3K |
| — |
| 6 |
| AS394576US | MIAMI-INTERNATIONAL-AIRPORT - Miami International Airport | 3.3K | — | 6 |
| AS31880US | AS31880 - Nestle USA | 3.3K | — | 11 |
| AS31978US | PEAKWIFI - PeakWiFi LLC | 3.3K | — | 13 |
| AS21891US | BUGGS-NET - Buggs Island Telephone Cooperative | 3.3K | — | 3 |
| AS55192US | TEKNET-WISP - teknet | 3.3K | — | 13 |
| AS36724US | HCAS-3 - Hanson Communications, Inc. | 3.3K | — | 5 |
| AS33395US | RMM-SOLUTIONS-AS - RMM Solutions Inc | 3.3K | — | 12 |
| AS12075US | JACOBS - Jacobs Engineering Group Inc. | 3.3K | — | 12 |
| AS53641US | TOMALESBAYLAN - Tomales Bay LAN, LLC | 3.3K | — | 8 |
| AS395927US | MILEHIGHNETWORKS - Mile High Networks, LLC | 3.3K | — | 3 |
| AS1261US | NATINST-AS-AS - National Instruments Corporation | 3.3K | — | 10 |
| AS396350US | BOOMCOMMUNICATIONS-US - Boom Communications | 3.3K | 4.1K | 9 |
| AS397449US | HAYWIRE-ASN-01 - Haywire | 3.3K | 82K | 10 |
| AS25648US | PARALLAXSYSTEMS - Parallax Systems | 3.3K | — | 3 |
| AS46379US | SIENA-COLLEGE - Siena University | 3.3K | — | 3 |
| AS398699US | WCCE - Cisco Systems Inc | 3.3K | — | 13 |
| AS399759US | UBER-WIRELESS-LLP - Uber Wireless LLP | 3.3K | — | 13 |
| AS3423US | ATTIS-ASN3423 - AT&T Enterprises, LLC | 3.3K | 65.5K | 13 |
| AS29766US | CHSPSC-29766 - CHSPSC, LLC | 3.3K | — | 10 |
| AS394135US | SECURITAS-ELECT-SECURITY - Securitas Electronic Security, Inc. | 3.3K | — | 12 |
| AS11167US | GOGO - Gogo Business Aviation LLC | 3.3K | — | 5 |
| AS13656US | WORTHINGTONSTEEL - THE WORTHINGTON STEEL COMPANY | 3.3K | — | 13 |
| AS394492US | USEI - US Electrodynamics, Inc. | 3.3K | — | 13 |
| AS397666US | HOSTROUND-LLC - HostRound LLC | 3.3K | 4.1K | 29 |
| AS17199US | SWAGELOK - Swagelok Company | 3.3K | — | 9 |
| AS23302US | STC - South Texas College | 3.3K | — | 3 |
| AS14239US | RICH-PRODUCTS - Rich Products Corporation | 3.3K | — | 5 |
| AS399378US | SMTC-01 - Stratford Mutual Telephone Company | 3.3K | — | 8 |
| AS393861US | INOVA-PRIMARYASN-01 - Inova Health System Foundation | 3.3K | — | 4 |
| AS54638US | NSO - NETSOURCE ONE, INC | 3.3K | 4.1K | 10 |
| AS19557US | CHANGEIP-01 - CHANGEIP COM | 3.3K | 10 | 9 |
| AS54876US | ROKABEAR - ROKABEAR LLC | 3.3K | 131.1K | 5 |
| AS11789US | SURFAIRWIRELESS-IN-03 - Surf Air Wireless, LLC | 3.3K | — | 10 |
| AS397268US | WILDWISP-01 - Cambridge Telephone | 3.3K | — | 13 |
| AS1631US | AS1631 - Radnet Management, Inc. | 3.3K | — | 6 |
| AS8116US | BOSTON-SCIENTIFIC-132-189-0-0 - Guidant Corporation | 3.3K | — | 9 |
| AS53740US | OPTBIT - optbit LLC | 3.3K | 4.1K | 8 |
| AS22103US | NEXTIVA - Nextiva, Inc. | 3.3K | — | 13 |
| AS400385US | CITIZENS-TELEPHONE-ASN-01 - Citizens Telephone Corporation | 3.3K | — | 13 |
| AS394621US | DATAHOLDINGS-414-USA - Stack41, llc. | 3.3K | 65.5K | 11 |
| AS47020US | DATA-CAVE - Data Cave | 3.3K | 65.5K | 5 |
| AS10298US | AS10298 - CACI Inc., Federal | 3.3K | — | 13 |
| AS12037US | FDIC-GOV - Federal Deposit Insurance Corporation | 3.3K | — | 13 |
| AS32625US | OFFSITE-1 - OFFSITE, LLC | 3.3K | 65.5K | 5 |
| AS18602US | PWRWG - Paul, Weiss, Rifkind, Wharton & Garrison LLP | 3.3K | — | 10 |
| AS400126US | CMCMD - Copper Mountain Consolidated Metropolitan District | 3.3K | — | 3 |