AS25739 — ADTRAN - Adtran, Inc.

AS25739 announces 2 IPv4 prefixes covering 512 addresses and 2 IPv6 prefixes.

About this network

The AS handle ADTRAN is held by Adtran, Inc., a US-based networking equipment vendor.

What it's used for

• The address space carries internal corporate infrastructure, evidenced by the reverse DNS record s64.wifieval.adtran.com pointing to a Wi-Fi evaluation host.
• The AS announces 512 IPv4 addresses across 2 prefixes and 2 IPv6 prefixes, with only 2 observed neighbours, indicating a small, isolated corporate estate rather than a transit or access network.

Notable

• Registrants are mixed: ADTRAN-1 is registered to Adtran, Inc., while CENTURYLINK-LEGACY-QWEST-INET-7 is registered to CenturyLink Communications, LLC, suggesting the latter prefix is legacy space retained from a previous owner or lease.
• The inventory consists of two /24 IPv4 blocks and two IPv6 prefixes, a compact footprint typical of a corporate headquarters or R&D site.

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

Announced prefixes

• 207.229.97.0/24
• 216.206.86.0/24
• 2620:4a::/48
• 2620:106:a000::/44

Upstream networks

• AS3356 Level 3 Parent, LLC
• AS7725 Comcast Cable Communications, LLC

Adjacent networks

• AS3356 Level 3 Parent, LLC
• AS7725 Comcast Cable Communications, LLC

Routing security

• RPKI: 0 valid, 0 invalid and 4 not-found announcements; 0 ROAs.
• ASPA: none published.
• IRR: 0% of announcements registered; 0 route objects.
• Listed in as-sets: AS-BTN-CUSTOMERS, AS-COMCAST-EDIA.