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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. | 218.1M | 24,718 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 643 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.7M | 1,307 |
| 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.
32,222 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 | 3,893 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 2,007 |
| AS701US | UUNET - Verizon Business | 43.6M | 997 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,395 |
| 256 |
| — |
| 1 |
| AS32193US | AMMON - City of Ammon, Idaho | 256 | — | 1 |
| AS398146US | EMYPEOPLE - eMyPeople LLC | 256 | — | 1 |
| AS401829US | PIPEWORKS-01 - Pipeworks Inc. | 256 | 1 | 2 |
| AS40693US | AS-CVMC-CENTRAL-VERMONT-MEDICAL-CENTER - Central Vermont Medical Center | 256 | — | 1 |
| AS1217US | ORACLE-PACRIM-AS - Oracle Corporation | 256 | — | 1 |
| AS1098US | SNAPONE-LEHI-01 - Snap One, LLC. | 256 | — | 1 |
| AS397661US | PILLEN-OFFICE-01 - Pillen Family Farms, Inc. | 256 | — | 1 |
| AS19831US | STAMPIN - StampinUp | 256 | — | 1 |
| AS402913US | S-ANSTEY-TECH - S | 256 | — | 1 |
| AS401576US | BITRIOT - Bitriot LLC | 256 | — | 1 |
| AS23386US | CRYE-LEIKE-REALTORS - Crye Leike Realtors | 256 | — | 1 |
| AS394490US | AATRIX - Aatrix Software, Inc | 256 | — | 1 |
| AS46993US | SABA-CAPITAL-MANAGEMENT - Saba Capital Management, L.P. | 256 | — | 1 |
| AS55240US | UNIFOCUS - UniFocus LP | 256 | — | 1 |
| AS402347US | CAV-MNG-AS-01 - Cavnue | 256 | 1 | 2 |
| AS40559US | CROSSCOM - CROSSCOM NATIONAL, LLC | 256 | — | 1 |
| AS36415US | HNSF222 - Hotel Nikko of San Francisco, Inc. | 256 | — | 1 |
| AS14600US | SKYHIGH-SECURITY - SKYHIGH SECURITY LLC | 256 | — | 1 |
| AS400906US | AS-MINO - Mino Network LLC | 256 | — | 1 |
| AS11665US | NORTH-RIDGE - North Ridge | 256 | 4.1K | 2 |
| AS32056US | SHAMROCKFOODS-INTERNET-01 - SHAMROCK FOODS COMPANY | 256 | — | 1 |
| AS3763US | AS-BELD-1 - BELD | 256 | 256 | 2 |
| AS26078US | JRTHOMPSON-NOC - J.R. Thompson Company | 256 | — | 1 |
| AS398027US | ASN-BELL2 - Bell Bank | 256 | — | 1 |
| AS31940US | INTERNATIONAL-TELNET-INC - International Telnet Inc. | 256 | — | 1 |
| AS205602US | BRINSTAR Seamus Caveney | 256 | 259 | 5 |
| AS394782US | SEAPORT - Commonwealth Flats Development Hotel Corp. | 256 | — | 1 |
| AS40199US | STELLAR INNOVATORS ALLIANCE - STELLAR INNOVATORS ALLIANCE LLC | 256 | 256 | 2 |
| AS46731US | AS-CITYOFJEFFERSON - City of Jefferson | 256 | — | 1 |
| AS393883US | USD233-01 - OLATHE PUBLIC SCHOOLS USD 233 | 256 | — | 1 |
| AS396512US | MM-AS1 - Movement Mortgage | 256 | — | 1 |
| AS11462US | ARAMARK-CA-TORHQ - ARAMARK | 256 | — | 1 |
| AS16699US | US-HENSELPHELPS-AS01 - Hensel Phelps | 256 | — | 1 |
| AS393549US | WALSHGROUP - The Walsh Group | 256 | — | 1 |
| AS40607US | HCPL-7-ASN - HALL CAPITAL PARTNERS, LLC | 256 | — | 1 |
| AS401823US | KIRKLAND-ELLIS-BR - Kirkland & Ellis LLP | 256 | — | 1 |
| AS393412US | MONOTYPE-HQ - Monotype Imaging Inc | 256 | — | 1 |
| AS14984US | DYNACOM - DynaCom Management, Inc | 256 | — | 1 |
| AS11793US | ATI-LAS-ASN1 - Aristocrat Technologies, Inc. | 256 | — | 1 |
| AS397756US | POWERSCHOOL-FOLSOM - PowerSchool | 256 | — | 1 |
| AS19983US | GTPL-AS-01 - Global Technology Partners LLC | 256 | — | 1 |
| AS400403US | AS-LSTRAT-RTP - Local Stratus | 256 | — | 1 |
| AS402862US | SEMPERONE - SemperOne | 256 | 256 | 2 |
| AS25604US | GULF-SOUTH-PIPELINE - GULF SOUTH PIPELINE CO LP | 256 | — | 1 |
| AS394532US | INAZMA - TECPRESSO INC. | 256 | — | 1 |
| AS394359US | FARELOGIX - Farelogix, Inc. | 256 | — | 1 |