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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 | 21,260 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 113.7M | 639 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,265 |
| 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 | 413 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 49.3M | 3,727 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.7M | 1,958 |
| AS701US | UUNET - Verizon Business | 43.6M | 1,000 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,328 |
| — |
| — |
| 0 |
| AS17047US | CENTURYLINK-CENTURYTELECOMM - CenturyLink Communications, LLC | — | — | 0 |
| AS17048US | OBJX - objx.net, LLC | — | — | 0 |
| AS17110US | YAHOO-US2 - Yahoo Holdings Inc. | — | — | 0 |
| AS17213US | SSCLOUD - SUPERSAFECLOUD LLC | — | — | 0 |
| AS17259US | ELYNX-CORP-NET - Black Knight IP Holding Company, LLC | — | — | 0 |
| AS17305US | 1STMILE-NETWORKS - 1stMile Networks | — | — | 0 |
| AS17319US | MTPCS-ASN - MTPCS LLC | — | — | 0 |
| AS17331US | TENSORDOCK - Dash Cloud | — | — | 0 |
| AS17368US | TWRS-1V - Towerstream I, Inc. | — | — | 0 |
| AS18541US | BJN2 - Verizon Business | — | — | 0 |
| AS18601US | SMART-CITY-CBCC - SMART CITY NETWORKS, LIMITED PARTNERSHIP | — | — | 0 |
| AS18681US | CONSTELLATION-ENERGY - Exelon Corporation | — | — | 0 |
| AS18717US | AKAMAI-AS - Akamai Technologies, Inc. | — | — | 0 |
| AS18753US | AZUREGCC-H - Avon Protection Systems, Inc. | — | — | 0 |
| AS18768US | PHJW-LLP - Paul, Hastings, Janofsky & Walker LLP | — | — | 0 |
| AS18808US | TIHC-DC2 - TI Intermediate Holdings, LLC | — | — | 0 |
| AS18935US | CLT4 - Stratus Cloud Technologies | — | — | 0 |
| AS19046US | STACKPOP - 43Bytes | — | — | 0 |
| AS19078US | EMERC-4ASN - Emercury LLC | — | — | 0 |
| AS19088US | ECG - ACI Worldwide, Inc. | — | — | 0 |
| AS19140US | PASCO-SCIENTIFIC - PASCO scientific | — | — | 0 |
| AS19203US | IMPRI-1 - Imprivata Inc | — | — | 0 |
| AS19262US | VZGNI-TRANSIT - Verizon Business | — | — | 0 |
| AS19282US | SMFRA - South Metro Fire Rescue Authority | — | — | 0 |
| AS19285US | OUTLAWLOGISTICS - Outlaw Logistics LLC | — | — | 0 |
| AS19328US | AS-CLOUDS-1 - Duclos Engineering | — | — | 0 |
| AS19372US | NCOGROUP-FTW - ALORICA INC | — | — | 0 |
| AS19444US | CHARTER-19444-NA - Charter Communications LLC | — | — | 0 |
| AS19454US | OET-AS-01 - Outer Edge Technology, LLC | — | — | 0 |
| AS19513US | BOX-VIP - Box.com | — | — | 0 |
| AS19516US | SMITH - Smith International, Inc. | — | — | 0 |
| AS19541US | EA-ONLINE-NA1 - Electronic Arts, Inc. | — | — | 0 |
| AS19630US | AS-DUBLIN-DIA - Guggenheim Services LLC | — | — | 0 |
| AS19666US | HENDERSONBROTHERS-MAIN - Henderson Brothers, Inc. | — | — | 0 |
| AS19671US | EVERESTBROADBAND1 - Everest BBN, Inc. | — | — | 0 |
| AS19815US | DIGITECH-ASN1 - Digitech Systems, LLC. | — | — | 0 |
| AS19942US | FLOCHI - Flochi Networks | — | — | 0 |
| AS20022US | EVERESTBROADBAND-NET - Everest BBN, Inc. | — | — | 0 |
| AS20046US | MICROSOFT-BOS - Microsoft Corporation | — | — | 0 |
| AS20089US | CHSPSC-IN-LHN - CHSPSC, LLC | — | — | 0 |
| AS20164US | JOANN-INET - Oak | — | — | 0 |
| AS20175US | SETELAS - Fusion, LLC | — | — | 0 |
| AS20178US | INTERNETEMC - Trailwave Fiber, Inc. | — | — | 0 |
| AS20179US | BONDS-AS - Tullett & Tokyo Forex, Inc. | — | — | 0 |
| AS20181US | WEBTER-BANK - Webster Bank, National Association | — | — | 0 |
| AS20184US | VNPT - KIM HOANG | — | — | 0 |