Autonomous system
AS40284 GSCBN - Glenwood Springs Community Broadband Network
Unclassified ARIN Cable/DSL/ISP
Summary
Glenwood Springs Community Broadband Network
fiber municipal residential access
GSCBN is operated by Glenwood Springs Community Broadband Network.
What it's used for
- The address space carries fiber-to-the-home subscriber traffic, evidenced by the reverse DNS entry
fttx-customer.gscbn.comand the netnameCBN-CUSTOMER. - The AS announces 4,096 IPv4 addresses across 4 prefixes and maintains 7 observed neighbours, a ratio consistent with a local access network rather than a transit provider.
- Traffic consists of residential and business broadband subscribers in Glenwood Springs, Colorado, served by the city's municipal fiber optic infrastructure.
Notable
- Registrants are mixed:
Glenwood Springs Community Broadband Networkholds the74.114.4.0/22block, whileVisionary Communications LLCholds the64.184.232.0/23and64.184.242.0/23blocks, which resolve tomammothnetworks.comin reverse DNS. - The inventory includes a
/21block registered to aPrivate Customerand two/23blocks associated with a different registrant, indicating a composite address estate rather than a single contiguous municipal allocation.
This description is AI-generated, best-effort context — not authoritative, and provided without any guarantee of accuracy. Source, and how to suggest an edit.
Interconnection
Peering at a glance
Internet exchanges
No exchange port on file. Many exchanges publish no participant list, so this is not proof of absence.
Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-11-12, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 4 prefixes · 4.10K addresses IPv6 0 prefixes
| Country | Name | Prefixes |
|---|---|---|
| US | United States of America | 4 |
Registry
Allocation record
- Registry
- ARIN
- Handle
AS40284- Registry name
- GSCBN
- Registrant
- Glenwood Springs Community Broadband Network
- Abuse contact
- noc@gscbn.com
- Registered
- 2006-10-16
- Last changed
- 2017-03-10
- Allocation
- assigned
Declared
PeeringDB profile
- Name
- GSCBN
- Network type
- Cable/DSL/ISP
- Scope
- North America
- Traffic ratio
- Not Disclosed
- Peering policy
- Selective
- IRR as-set
ARIN::AS-CBN- Present at
- 1 exchanges
- Website
- https://gscbn.com
PeeringDB records are maintained by the network operator and are not independently verified. Treat them as a statement of intent rather than of fact. For the observed and recorded view, see peering, which lists the exchanges Packet Clearing House has a port on file for.
Routing security
RPKI and IRR
- RPKI
- 100% valid · 20 valid, 0 with no ROA
- ROAs
- 4 authorising AS40284
- ASPA
- no ASPA record
- IRR
- 100% registered · 20 of 20 announcements
- Route objects
- 23 naming AS40284
Reputation
Classification and threat
Unclassified Not in the curated lists. Most of the ~80,000 allocated ASNs are not.
Spamhaus DROP
Not on ASN-DROP The network as a whole is not listed.
No DROP prefixes None of its announced space is on the DROP prefix list.
Spamhaus DROP ("Don't Route Or Peer") lists space and networks run by, or hijacked for, spam and cybercrime operations: 453 networks and 1,848 prefixes, as published 2026-11-12. A short, high-confidence list, so a match is worth taking seriously, and absence from it says little on its own.
FBI IC3
No IC3 indicators Nothing from the FBI IC3 feed.
IC3 threat data is alpha. Absence of an indicator is not evidence of good behaviour, only of absence from this one feed.
Elsewhere