AS11232 — MIDCO-NET

Network type: residential

AS11232 announces 106 IPv4 prefixes covering 779,776 addresses and 20 IPv6 prefixes.

About this network

MIDCO-NET is Midcontinent Communications, trading as Midco — the regional cable operator serving the northern Plains (the Dakotas, Minnesota, Wisconsin and Kansas). It is a consumer broadband network, and the routing evidence says so unambiguously.

What it's used for

Residential and small-business broadband access. RIS observes 79 IPv4 prefixes carrying ~783,616 addresses, 19 IPv6 prefixes, and 67 observed neighbours. Three-quarters of a million IPv4 addresses is subscriber-scale, and 67 neighbours is the right shape for a regional eyeball network: enough to multihome and peer at exchanges, nowhere near the hundreds-to-thousands a wholesale carrier accumulates.

Reverse DNS settles the rest. Nearly every sampled address answers as <a>-<b>-<c>-<d>-dynamic.midco.net or -static.midco.net — DHCP-assigned cable-modem pools with static assignments interleaved for business customers. The ARIN network handles reinforce it: the announced blocks are literally named NET-96-2-0-0-23-DHCP, NET-165-23-0-0-24-DHCP, NET-24-220-0-0-24-STATIC. The space is registered to the operator's own networks and wears the operator's own rDNS, so there is no leasing or third-party-registrant shape here.

Notable

The address inventory is an archaeology of cable-ISP growth: legacy 24.x cable space, 96.2.0.0/15, 184.83.0.0/16, 208.107.0.0/16 and several 165.x/140.186.0.0/16 blocks that predate Midco's use of them. IPv6 is properly deployed, with a /32 and several larger aggregates in production.

Interesting

Midco is one of the few sizeable independent US cable operators left; most peers of its era were absorbed into Charter or Comcast.

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

Announced prefixes

• 24.49.112.0/20
• 24.52.12.0/22
• 24.52.16.0/23
• 24.52.24.0/21
• 24.52.36.0/22
• 24.52.40.0/22
• 24.52.52.0/22
• 24.52.56.0/21
• 24.54.150.0/23
• 24.54.152.0/22
• 24.54.166.0/23
• 24.56.144.0/21
• 24.56.168.0/23
• 24.56.190.0/23
• 24.111.0.0/16
• 24.124.0.0/18
• 24.124.64.0/19
• 24.124.96.0/20
• 24.124.112.0/21
• 24.124.120.0/22
• 24.143.32.0/19
• 24.220.0.0/19
• 24.220.32.0/22
• 24.220.37.0/24
• 24.220.38.0/23
• 24.220.40.0/21
• 24.220.48.0/20
• 24.220.64.0/18
• 24.220.128.0/17
• 24.225.96.0/20
• 24.230.32.0/19
• 24.230.64.0/18
• 24.230.128.0/18
• 24.236.40.0/21
• 24.236.60.0/22
• 64.17.64.0/22
• 64.17.75.0/24
• 64.33.64.0/18
• 64.140.176.0/20
• 64.189.128.0/21
• 64.189.136.0/23
• 66.45.128.0/21
• 66.45.136.0/23
• 66.45.138.0/24
• 66.45.140.0/22
• 66.45.144.0/20
• 67.217.18.0/23
• 67.217.20.0/22
• 67.217.28.0/22
• 69.9.192.0/19
• 69.9.224.0/20
• 69.9.240.0/21
• 69.9.249.0/24
• 69.9.250.0/23
• 69.9.252.0/22
• 96.2.0.0/17
• 96.2.128.0/18
• 96.2.192.0/22
• 96.2.196.0/24
• 96.2.198.0/23
• 96.2.200.0/22
• 96.2.204.0/23
• 96.2.207.0/24
• 96.2.208.0/20
• 96.2.224.0/21
• 96.2.232.0/24
• 96.2.234.0/23
• 96.2.236.0/22
• 96.2.240.0/21
• 96.2.248.0/23
• 96.2.251.0/24
• 96.2.252.0/23
• 96.2.255.0/24
• 96.3.0.0/17
• 96.3.128.0/18
• 96.3.192.0/21
• 96.3.200.0/22
• 96.3.204.0/23
• 96.3.207.0/24
• 96.3.208.0/20
• 96.3.224.0/19
• 129.101.0.0/19
• 129.101.32.0/20
• 129.101.48.0/21
• 129.101.56.0/22
• 129.101.60.0/23
• 129.101.62.0/24
• 137.22.32.0/19
• 137.22.96.0/19
• 140.186.0.0/16
• 163.123.0.0/17
• 165.23.0.0/16
• 172.103.0.0/19
• 184.83.0.0/16
• 184.169.112.0/20
• 185.102.111.0/24
• 192.103.41.0/24
• 192.206.50.0/24
• 208.65.96.0/22
• 208.107.0.0/16

and 26 more.

Upstream networks

• AS6939 Hurricane Electric LLC
• AS1299 Arelion Sweden AB
• AS174 Cogent Communications, LLC
• AS2914 NTT America, Inc.
• AS6461 Zayo Bandwidth
• AS3257 GTT Communications Inc.
• AS24482 SG.GS
• AS34927 iFog GmbH
• AS852 TELUS Communications Inc.
• AS11164 Internet2

Downstream networks

• AS11055 Midcontinent Communications
• AS23260 Midcontinent Communications
• AS14263 South Dakota State Government
• AS16739 Midcontinent Communications
• AS46206 Sanford Health
• AS32442 Marco Technologies LLC
• AS12092 Sonifi Solutions, Inc.
• AS25754 Blueprint America, Inc.
• AS33178 Cable Services, Inc.
• AS47071 CHR SOLUTIONS INC
• AS401671 ACCESSPARKS LLC
• AS62896 Midcontinent Communications
• AS55215 Trinity Health
• AS26793 ICS Advanced Technologies
• AS916 Stalwart Wireless
• AS402632 Wellman
• AS14789 Cloudflare, Inc.
• AS399133 VPS Solutions, LLC
• AS16400 Wavelength LLC
• AS36013 Missouri River Energy Services
• AS46900 Rushmore Electric Power Cooperative, Inc.
• AS46566 CAPITAL Card Services, Inc.
• AS22768 SYNERGY BROADBAND
• AS401182 Applied Digital Corporation
• AS397638 Mille Lacs Health System

Adjacent networks

• AS6939 Hurricane Electric LLC
• AS14263 South Dakota State Government
• AS1299 Arelion Sweden AB
• AS6461 Zayo Bandwidth
• AS2914 NTT America, Inc.
• AS174 Cogent Communications, LLC
• AS11055 Midcontinent Communications
• AS3257 GTT Communications Inc.
• AS23260 Midcontinent Communications
• AS16739 Midcontinent Communications
• AS46206 Sanford Health
• AS32442 Marco Technologies LLC
• AS12092 Sonifi Solutions, Inc.
• AS25754 Blueprint America, Inc.
• AS24482 SG.GS
• AS33178 Cable Services, Inc.
• AS47071 CHR SOLUTIONS INC
• AS401671 ACCESSPARKS LLC
• AS62896 Midcontinent Communications
• AS55215 Trinity Health
• AS26793 ICS Advanced Technologies
• AS402632 Wellman
• AS916 Stalwart Wireless
• AS399133 VPS Solutions, LLC
• AS14789 Cloudflare, Inc.

Internet exchanges

• Equinix Internet Exchange Chicago — Chicago, United States
• Midwest Internet Cooperative Exchange — Minneapolis, United States
• Interconnection eXchange Denver — Denver, United States
• Kansas City Internet Exchange — Kansas City, United States