AS13855 — CFU-NET

Network type: residential

AS13855 announces 16 IPv4 prefixes covering 25,344 addresses and 1 IPv6 prefixes.

About this network

A city-owned broadband utility with a numbered netname series and 24 upstreams.

What it's used for

• A municipal broadband utility. 25,344 addresses across 16 IPv4 prefixes, the IPv6 block 2607:f070::/32, and 24 observed BGP neighbours.

Notable

• Netnames run CFU-NET then CFU-NET-2, -3, -4, -8, -9, -10 and -11; the sampled records jump from four to eight, and four prefixes were not sampled.
• All 11 records that answered give exactly the same registrant string, a city utility named in full.
• One block's registry lookup failed and returned nothing.
• Reverse names take the form gw-254-23-149-24.cf-res.cfu.net, the address in reverse order behind a gateway marker, under a residential subzone.
• The blocks come from ten unrelated parent ranges.

Interesting

• A numbered netname series is a record of acquisition order, so the count is a history of how many separate times this utility went and got more address space. Ten different parent ranges for one city says none of it arrived as a single allocation.
• Twenty-four upstreams is more than most regional carriers hold and far more than a city of this size needs for capacity. A municipal utility answers to residents rather than shareholders, and buying paths is how it makes an outage somebody else's problem.
• Marking every subscriber gateway as residential in its name maps the customer base from outside.

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

Announced prefixes

• 24.149.0.0/19
• 64.191.8.0/22
• 67.212.96.0/20
• 67.212.112.0/21
• 67.212.120.0/22
• 67.212.124.0/23
• 67.212.126.0/24
• 69.57.192.0/22
• 69.57.196.0/23
• 69.57.200.0/21
• 142.147.101.0/24
• 168.203.8.0/22
• 192.101.160.0/24
• 192.111.20.0/22
• 199.168.104.0/22
• 209.40.80.0/22
• 2607:f070::/32

Upstream networks

• AS6939 Hurricane Electric LLC
• AS174 Cogent Communications, LLC
• AS1299 Arelion Sweden AB
• AS24482 SG.GS

Downstream networks

• AS22594 University of Northern Iowa
• AS400080 Grundy Center Municipal Utilities
• AS397790 Indianola Municipal Utilities
• AS33029 Osage Municipal Communications Utility
• AS400528 City of Pella
• AS393514 New Hampton Municipal Light Plant
• AS400132 Reinbeck Telecommunications Utility
• AS20298 Waverly Utilities
• AS400358 TOTALDATALOSS LLC
• AS17313 THE CBE GROUP, INC
• AS18827 Forbin
• AS36061 Waterloo Fiber

Adjacent networks

• AS6939 Hurricane Electric LLC
• AS400528 City of Pella
• AS1299 Arelion Sweden AB
• AS174 Cogent Communications, LLC
• AS22594 University of Northern Iowa
• AS400080 Grundy Center Municipal Utilities
• AS397790 Indianola Municipal Utilities
• AS33029 Osage Municipal Communications Utility
• AS20298 Waverly Utilities
• AS393514 New Hampton Municipal Light Plant
• AS400132 Reinbeck Telecommunications Utility
• AS400358 TOTALDATALOSS LLC
• AS17313 THE CBE GROUP, INC
• AS18827 Forbin
• AS24482 SG.GS
• AS36061 Waterloo Fiber
• AS6122 Iowa Communications Network

Internet exchanges

• Equinix Internet Exchange Chicago — Chicago, United States
• Midwest Internet Cooperative Exchange — Minneapolis, United States
• Quad Cities Internet Exchange — Davenport, United States