AS25623 — CISN2

AS25623 announces 4 IPv4 prefixes covering 1,024 addresses and 4 IPv6 prefixes.

About this network

The AS handle CISN2 is held by TowardEX Technologies International, Inc.

What it's used for

• The address space carries internal corporate and backbone infrastructure, evidenced by netnames like TWDX-CISN-NETBLK-1 and TowardEX Technologies Internal/Backbone.
• Reverse DNS entries include station-c772f9be.ops.twdx.net and packetsurge.net hosts, indicating operational and service endpoints.
• With 1024 IPv4 addresses and 4 IPv6 prefixes announced against only 2 observed neighbours, the ratio suggests a focused enterprise or internal network rather than a large-scale transit provider.

Notable

• Registrants are consistent with the announcer, including TowardEX Technologies International, Inc., TOWARDEX Information Systems Network (CISN), and TowardEX Technologies Internal/Backbone.
• One prefix, 162.219.97.0/24, is registered to Open Contributors Corporation for Advanced Internet Development, Inc., which may indicate leased space or historical allocation.
• The inventory consists of four distinct IPv4 /24 blocks and four IPv6 prefixes, showing a finely subdivided internal estate.

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

Announced prefixes

• 8.20.191.0/24
• 162.219.97.0/24
• 199.114.249.0/24
• 199.114.251.0/24
• 2001:4830:200::/40
• 2001:4830:2070::/48
• 2001:4830:3100::/48
• 2a06:ee05::/32

Upstream networks

• AS22147 Open Contributors Corporation for Advanced Internet Development, Inc.
• AS27552 TowardEX Technologies International, Inc.

Adjacent networks

• AS22147 Open Contributors Corporation for Advanced Internet Development, Inc.
• AS27552 TowardEX Technologies International, Inc.

Internet exchanges

• Massachusetts Internet Exchange — Boston, United States