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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 | 24,389 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 644 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.6M | 1,302 |
| 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.
32,169 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 233 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 437 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.5M | 3,885 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 1,996 |
| AS701US | UUNET - Verizon Business | 43.6M | 994 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,341 |
| — |
| — |
| 0 |
| AS62741US | SECOM-VBB - Secom, Inc | — | — | 0 |
| AS62755US | DOTBLOCK-1 - HostRocket.com, Inc. | — | — | 0 |
| AS62806US | CLEAR-CHANNEL-OUTDOOR - Outdoor Management Services, Inc | — | — | 0 |
| AS62842US | AS62842 - Castle & Cooke North Carolina, LLC | — | — | 0 |
| AS62847US | MINUTE-02 - Minute | — | — | 0 |
| AS62851US | ESOLUTIONS - eDot, LLC | — | — | 0 |
| AS62910US | ENVERASYSTEMS - Envera Systems | — | — | 0 |
| AS62930US | CLOUDFLY-US-01 - Cloudfly Net Inc | — | — | 0 |
| AS63036US | COPPELL-ADMIN - Coppell Independent School District | — | — | 0 |
| AS63049US | FFS-CORP-ASN - First Financial Security, Inc. | — | — | 0 |
| AS63067US | NJ-INET - City National Bank | — | — | 0 |
| AS63088US | PRIME-TESTING - Amazon.com, Inc. | — | — | 0 |
| AS63140US | IGUANA-WORLDWIDE - Iguana Worldwide | — | — | 0 |
| AS63175US | BUFFALO-IAD - Buffalo Studios | — | — | 0 |
| AS63416US | IOS-US - Internet Operating Services of Arizona LLC | — | — | 0 |
| AS64203US | EIGHT-EIGHTEEN-ROUTING - 8/18 Productions LLC | — | — | 0 |
| AS64208US | VIRTUSTREAM-VGN-US - Dell, Inc. | — | — | 0 |
| AS64266US | NUTANIX-AS - Nutanix, Inc | — | — | 0 |
| AS133183US | NETACTUATE-AS-AP - NetActuate, Inc | — | — | 0 |
| AS134662US | METROPOLIS-AS-AP - Metropolis Networks Inc | — | — | 0 |
| AS152158US | EASYLINKLLC-AS-AP - Easy Link LLC | — | — | 0 |
| AS199705US | Netly Netly LLC | — | — | 0 |
| AS201392US | Team-Inverse-LLC TEAM INVERSE LLC | — | — | 0 |
| AS202192US | DATAHUB-IX DATAHUB,LLC | — | — | 0 |
| AS202336US | CSW CHRISTIAN CHRISTENSEN | — | — | 0 |
| AS203283US | HighEndNetwork HighEndNetwork LLC | — | — | 0 |
| AS203801US | MILLER Jason Miller | — | — | 0 |
| AS207710US | WSTELECOM_DE WS Telecom Inc | — | — | 0 |
| AS207836US | SDUBS-NET Scott Schulz | — | — | 0 |
| AS207976US | Bitrion Spectriot LLC | — | — | 0 |
| AS208904US | LOOKINGHOUSE LOOKING HOUSE LLC | — | — | 0 |
| AS210011US | ASPAPINC Wired ISP Inc. | — | — | 0 |
| AS211738US | AMERION-COMMUNICATIONS AMERION COMMUNICATIONS LLC | — | — | 0 |
| AS214768US | coresdev Tyler Donia | — | — | 0 |
| AS263724US | AS263724 - AT&T Argentina | — | — | 0 |
| AS393232US | CMCS - Comcast Cable Communications, LLC | — | — | 0 |
| AS393324US | COMPTIA-1 - CompTIA, Inc. | — | — | 0 |
| AS393372US | SKOUT-SJC1 - Skout, Inc. | — | — | 0 |
| AS393419US | BICNET1 - Braun Intertec Corporation | — | — | 0 |
| AS393596US | NASH-DC-LLC - T5@LOS ANGELES LLC | — | — | 0 |
| AS393621US | MARYVILLE-TN - City of Maryville | — | — | 0 |
| AS393721US | CAREUSA - CARE, Inc. | — | — | 0 |
| AS393826US | AS-IMAGINESOFTWARE - IMAGINE SOFTWARE INC | — | — | 0 |
| AS393854US | ROOTMETRICS - Rootmetrics | — | — | 0 |
| AS393911US | SAVECOM - Savecom Telecom, Inc | — | — | 0 |
| AS393973US | OPORTUN-ASN - Oportun,Inc. | — | — | 0 |