AS23308 — UTILITY-AS

AS23308 announces 17 IPv4 prefixes covering 41,728 addresses and 1 IPv6 prefixes.

About this network

The AS handle UTILITY-AS is held by Utility Telephone, Inc.

What it's used for

• The address space carries residential and business access traffic, evidenced by reverse DNS entries pointing to utilitytelephone.net and netnames like UTILI-5-LSAN-001 and UTILI-5-STK-001.
• With 41,728 IPv4 addresses announced against only 6 observed neighbours, the ratio indicates an access or eyeball network rather than a transit provider.

Notable

• Registrants include Utility Telephone, Inc., WPTI Telecom LLC, Rem Net Communications, and Call America Inc, reflecting a mix of owned and acquired or leased address space.
• The inventory consists of 17 IPv4 prefixes and 1 IPv6 prefix, with the largest blocks being /19s in the 66.113.64.0 and 216.162.160.0 ranges.
• The presence of Call America Inc netnames suggests historical consolidation or leasing of address space from other regional carriers.

This description is AI-generated, best-effort context — not authoritative, and provided without any guarantee of accuracy.

Announced prefixes

• 66.113.64.0/19
• 104.255.240.0/21
• 139.60.40.0/21
• 173.255.96.0/20
• 204.11.112.0/22
• 204.14.136.0/21
• 204.16.140.0/22
• 204.86.252.0/22
• 206.128.120.0/21
• 206.211.208.0/21
• 208.65.220.0/22
• 208.73.8.0/21
• 208.75.240.0/21
• 208.85.200.0/21
• 208.86.36.0/23
• 208.86.38.0/24
• 216.162.160.0/19
• 2607:f8c8::/32

Upstream networks

• AS3356 Level 3 Parent, LLC
• AS7018 AT&T Enterprises, LLC

Downstream networks

• AS7961 Raw Bandwidth Communications, Inc.
• AS63316 City of Foster City
• AS399033 VARCOMM BROADBAND, INC.
• AS54912 Bay Alarm Company

Adjacent networks

• AS3356 Level 3 Parent, LLC
• AS7961 Raw Bandwidth Communications, Inc.
• AS7018 AT&T Enterprises, LLC
• AS63316 City of Foster City
• AS399033 VARCOMM BROADBAND, INC.
• AS54912 Bay Alarm Company

Routing security

• RPKI: 0 valid, 0 invalid and 17 not-found announcements; 0 ROAs.
• ASPA: none published.
• IRR: 100% of announcements registered; 39 route objects.
• Listed in as-sets: AS-ANY2-RS, AS-LEVEL3-IPV6, AS-UTI, AS-WINDSTREAM-CUST, AS-XO, AS-XO-B, AS33744:AS-CUSTS.

Internet exchanges

• Coresite - Any2 West — Los Angeles, United States
• Any2 California — Los Angeles, United States