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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 | 23,695 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 643 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.6M | 1,300 |
| 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.
32,143 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 232 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 437 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.5M | 3,820 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 1,994 |
| AS701US | UUNET - Verizon Business | 43.6M | 995 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,278 |
| 188.4K |
| 65.6K |
| 409 |
| AS393442US | UNITED-FIBER - United Electric Cooperative | 188.4K | — | 128 |
| AS55256US | NETSKOPE - Netskope Inc | 187.4K | — | 590 |
| AS5647US | ASN-KODAK - Eastman Kodak Company | 187.1K | — | 16 |
| AS7065US | SNIC - Sonic.net, LLC | 186.1K | 33K | 40 |
| AS7795US | LUMOS - LUMOS Networks, Inc. | 185.9K | 65.5K | 59 |
| AS1767US | ILIGHT-NET - Indiana Higher Education Telecommunication System (IHETS) | 185.6K | 261 | 44 |
| AS399898US | CONEXON-CONNECT - Conexon Connect | 185.6K | 19.9M | 101 |
| AS7203US | LEASEWEB-USA-SFO - Leaseweb USA, Inc. | 185.3K | 5.4M | 169 |
| AS8796US | FD-298-8796 - FASTNET DATA INC | 184.6K | 24 | 354 |
| AS19416US | RBC-NY - RBC CAPITAL MARKETS CORPORATION | 183K | — | 81 |
| AS16839US | SNC - SERVICENOW, INC. | 183K | 33 | 148 |
| AS22742US | CT-EDU-NET - Connecticut Education Network | 182.8K | 65.5K | 80 |
| AS26347US | DREAMHOST-AS - New Dream Network, LLC | 182.5K | 18 | 27 |
| AS12079US | CELLCO-PART - Verizon Business | 181.5K | 202 | 17 |
| AS11273US | FDCSGNET - Fiserv Solutions, LLC | 180.7K | — | 145 |
| AS12129US | 123NET - 123.Net, Inc. | 180.5K | 69.6K | 52 |
| AS36692US | CISCO-UMBRELLA - Cisco OpenDNS, LLC | 180.2K | 847 | 836 |
| AS20454US | SSASN2 - SECURED SERVERS LLC | 179.7K | 4.9K | 160 |
| AS10967US | HOMEDEPOTNET - The Home Depot Inc. | 179.7K | — | 52 |
| AS5065US | BUNNY-COMMUNICATIONS-GLOBAL - Bunny Communications | 179.2K | 524.3K | 628 |
| AS1968US | UMASSNET-AS1968 - UMASSNET | 177.4K | 524.3K | 22 |
| AS45US | LLL-TIS-AS - Lawrence Livermore National Laboratory | 175.6K | 256 | 12 |
| AS11796US | AIRSTREAMCOMM-NET - Airstream Communications, LLC | 173.6K | 16.9M | 26 |
| AS63199US | CDSC-AS1 - CDS Global Cloud Co., Ltd | 172.5K | 17.4K | 521 |
| AS11398US | CENTURYLINK-LEGACY-EMBARQ-LVGS - CenturyLink Communications, LLC | 172.3K | — | 64 |
| AS10838US | OCEANIC-INTERNET-RR - Charter Communications Inc | 171.3K | 336.1K | 53 |
| AS797US | AMERITECH-AS - AT&T Services, Inc. | 171.3K | — | 21 |
| AS3701US | LINK-OREGON - University of Oregon | 170.5K | 65.5K | 11 |
| AS62US | CONE - CyrusOne LLC | 170.5K | 134.4K | 173 |
| AS2749US | DNIC-AS-02749 - Navy Network Information Center (NNIC) | 170K | — | 14 |
| AS46475US | LIMESTONENETWORKS - Limestone Networks, Inc. | 169.2K | 65.6K | 330 |
| AS19331US | TWIN-LAKES - Twin Lakes Telephone Cooperative Corporation | 168.7K | 1M | 40 |
| AS14992US | CRYSTALTECH - NewtekOne, Inc. | 168.7K | — | 14 |
| AS5078US | ONENET-AS-1 - Oklahoma Network for Education Enrichment and | 168.7K | 65.6K | 44 |
| AS21976US | NJEDGE-NET - NJEDge.Net, Inc. | 167.9K | 65.5K | 97 |
| AS6035US | DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) | 167.7K | — | 102 |
| AS12042US | ENVENTIS - Fidium | 167.7K | 131.1K | 111 |
| AS393238US | IMONC - ImOn Communications, LLC | 166.4K | 1.1M | 22 |
| AS397412US | TACHUS - TACHUS INFRASTRUCTURE LLC | 165.1K | 65.5K | 19 |
| AS10921US | KIHNETWORK - Commonwealth of KentuckyDepartment of Information Systems | 164.9K | — | 7 |
| AS12US | NYU-DOMAIN - New York University | 164.1K | 65.5K | 13 |
| AS3851US | NSHE-NEVADANET - Nevada System of Higher Education | 163.8K | 65.5K | 7 |
| AS350US | DNIC-ASBLK-00306-00371 - United States Department of Defense (DoD) | 163.8K | 256 | 5 |
| AS18978US | ENZUINC-US - Enzu Inc | 163.6K | 590.7K | 112 |
| AS7381US | SRS-6-Z-7381 - BroadbandONE, LLC | 163.3K | 1.1M | 250 |
| AS27142US | DNIC-ASBLK-27032-27159 - United States Department of Defense (DoD) | 161.3K | 3 | 59 |