AS14363 — MTCCOMM

Network type: residential

AS14363 announces 9 IPv4 prefixes covering 15,616 addresses and 1 IPv6 prefixes.

About this network

This network announces single addresses to the global routing table, at the bottom of a halving cascade that runs from /25 all the way to /32.

What it's used for

• A regional provider's network. 15,616 addresses across 25 IPv4 prefixes plus 19 IPv6 prefixes, with 25 observed BGP neighbours.

Notable

• Inside 173.233.161.0, the announcements run /25, /26, /27, /28, /29, /30, /31 and then two separate /32s, each starting where the previous one ended.
• The IPv6 side does the same thing in the other direction: 2605:cd40::/47, 2605:cd40:2::/47, then /46, /45, /44, /43, /42, /41, /40 and /39, each twice the size of the last.
• Netnames vary by era: MTCCOMM-NET, MTCCOMM-NET-64-6-0-0-20, NET-74-206-40-0-21, NET-69-161-42-0-23 and MC-3241, all registered to MTC Communications, Inc.
• All eighteen sampled addresses returned a name, every one the address itself with the domain appended: 64.6.2.0.mtccomm.net.

Interesting

• A /32 in the global table is a single host route. Most networks filter prefixes longer than /24, so those announcements are visible to almost nobody, and whatever they were meant to accomplish mostly is not happening.
• Both cascades are the same arithmetic. Splitting a range into every power of two below it is what a tool produces when told to cover an arbitrary start and end with prefixes, so both were almost certainly generated rather than typed.
• Reverse names that are the address plus the domain leave every host sitting four levels deep. It resolves; it just carries no information.
• Twenty-five neighbours for 15,616 addresses is a well-peered small network, which makes the unfilterable announcements more puzzling rather than less.

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

Announced prefixes

• 64.6.0.0/20
• 64.239.96.0/21
• 69.161.33.0/24
• 69.161.42.0/23
• 74.206.40.0/21
• 108.161.64.0/21
• 173.233.160.0/20
• 192.73.11.0/24
• 205.166.159.0/24
• 2605:cd40::/32

Upstream networks

• AS1299 Arelion Sweden AB
• AS6939 Hurricane Electric LLC
• AS174 Cogent Communications, LLC
• AS24482 SG.GS
• AS852 TELUS Communications Inc.
• AS293 ESnet
• AS25091 IP-Max SA

Downstream networks

• AS32331 FivePoint Networks, LLC
• AS26793 ICS Advanced Technologies
• AS22887 Western Illinois University
• AS23188 Wabash Independent Networks
• AS397334 Dot Foods, Inc.
• AS399457 NEW WINDSOR TELEPHONE CO
• AS23155 HARRISONVILLE TELEPHONE

Adjacent networks

• AS1299 Arelion Sweden AB
• AS6939 Hurricane Electric LLC
• AS174 Cogent Communications, LLC
• AS32331 FivePoint Networks, LLC
• AS26793 ICS Advanced Technologies
• AS22887 Western Illinois University
• AS23188 Wabash Independent Networks
• AS24482 SG.GS
• AS852 TELUS Communications Inc.
• AS293 ESnet
• AS397334 Dot Foods, Inc.
• AS399457 NEW WINDSOR TELEPHONE CO
• AS23155 HARRISONVILLE TELEPHONE
• AS25091 IP-Max SA

Internet exchanges

• Equinix Internet Exchange Chicago — Chicago, United States
• DE-CIX Chicago — Chicago, United States
• Kansas City Internet Exchange — Kansas City, United States
• Quad Cities Internet Exchange — Davenport, United States