Autonomous System

AS21686 Hawaiian Telcom Services Company, Inc.

ISPActiveUnited StatesARIN

AS21686 (SYSTEMMETRICS-1) is an ISP network operated by Hawaiian Telcom Services Company, Inc. in United States, registered with ARIN. It has 4 IPv4 prefixes with 24,576 addresses, which makes it the 6,115th largest of 82,200 active autonomous systems by IPv4 space.

IPv4 addresses24,576in 4 prefixes
IPv6 prefixes0none
Size rank#6,115of 82,200 active ASNs
Abuser scoreVery Low0.02% of its addresses flagged · method

Details

OrganizationHawaiian Telcom Services Company, Inc.
AS nameSYSTEMMETRICS-1
Websitehawaiiantel.com
Country United States (US)
Network typeISP
RegistryARIN
Abuse contactabuse@hawaiiantel.net
Registered2001-06-08
Last updated2025-07-10

IPv4 prefixes

4 prefixes · 24,576 addresses
NetworkAddressesFirst – last address
66.135.224.0/198,19266.135.224.0 – 66.135.255.255
66.175.64.0/198,19266.175.64.0 – 66.175.95.255
64.111.176.0/204,09664.111.176.0 – 64.111.191.255
208.103.96.0/204,096208.103.96.0 – 208.103.111.255

IPv6 prefixes

No IPv6 prefixes.

Query AS21686 with the API

The ASN lookup returns everything on this page as JSON, including every prefix. ASN lookups need an API key: a free account comes with 1,000 requests a day. 

curl "https://api.ipapi.is/?q=AS21686&key=YOUR_API_KEY"

Any address in its prefixes resolves to AS21686, with or without a key:

curl "https://api.ipapi.is/?q=66.135.224.1"

Other networks of Hawaiian Telcom Services Company, Inc.

AS36149 Hawaiian Telcom Services Company, Inc.379,392 IPv4 addresses

Largest networks in United States

AS749 United States Department of Defense (DoD)227,464,192 IPv4 addressesAS16509 Amazon.com, Inc.218,038,784 IPv4 addressesAS7018 AT&T Enterprises, LLC117,262,080 IPv4 addressesAS8075 Microsoft Corporation81,463,040 IPv4 addressesAS721 United States Department of Defense (DoD)73,070,080 IPv4 addressesAS7922 Comcast Cable Communications, LLC68,336,896 IPv4 addresses