asn.dev

Autonomous system

AS14813 BB-COLUMBUS

Unclassified ARIN Cable/DSL/ISP

IPv4 addresses 84.99K 136 prefixes
IPv6 prefixes 1 counted as prefixes, not addresses
Countries 1 mostly BB
Exchanges 0 recorded by PCH
Upstreams 1 4 downstream
Flagged prefixes 0 none

Summary

Columbus Telecommunications (Barbados)

Barbados · AI-generated

isp telecom infrastructure

One island's network holding space registered to four different companies, and the one address that answers points at the reverse tree itself.

What it's used for

  • A Caribbean ISP. 76,544 addresses across 115 IPv4 prefixes plus one IPv6 prefix, 2600:8400::/28, with four observed BGP neighbours. All 116 announced prefixes are attributed to Barbados.

Notable

  • The netnames COL-BB-2 through COL-BB-5 register to the AS holder.
  • BDS-NET5 and BDS-NET8 register to Cable & Wireless (Barbados) Limited.
  • LVLT-TELEB-5-64-210-40 registers to Tele (Barbados) Inc.
  • COGENT-206-228-0 and COGENT-63-160-0 register to Cogent Communications, LLC.
  • One of eighteen sampled addresses returned a name, and that name is 254.11.236.23.in-addr.arpa.

Interesting

  • A reverse lookup is supposed to return a hostname. This one returns a name inside the reverse tree itself, so asking what 23.236.11.254 is called gets its own reverse address back in a different order. Somebody built the zone from the wrong side of the delegation, and it has answered that way ever since.
  • Four registrants on one small island network is the whole history of Caribbean telecoms in one announcement: a local incumbent, a cable operator, an international carrier's block, and the holder's own.
  • An IPv6 /28 is a very large allocation next to 76,544 IPv4 addresses. Regional registries hand out IPv6 by expected customer count rather than by current use, so the two numbers describe different decades.

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

Full topology · Graph

Internet exchanges

No exchange port on file. Many exchanges publish no participant list, so this is not proof of absence.

Transit providers

1 upstream, 4 downstream and 6 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS23520Columbus Networks USA, Inc.13,541

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-13, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.

Address space

Summary

Shape and geography

IPv4 136 prefixes · 84.99K addresses IPv6 1 prefixes

CountryNamePrefixes
BBBarbados137

Registry

Allocation record

ARIN · via Atlas (registry + RDAP)
Registry
ARIN
Handle
AS14813
Registry name
BB-COLUMBUS
Registrant
Columbus Telecommunications (Barbados) Limited
Abuse contact
cwc-csirt@cwc.com
Registered
2007-03-15
Last changed
2025-02-10
Allocation
assigned

Declared

PeeringDB profile

self-reported
Name
BB-COLUMBUS
Also known as
FLOW
Network type
Cable/DSL/ISP
Scope
Not Disclosed
Traffic ratio
Mostly Inbound
Peering policy
Selective
Website
https://discoverflow.co

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

Full detail
RPKI
32% valid · 76 valid, 162 with no ROA
ROAs
96 authorising AS14813
ASPA
no ASPA record
IRR
95% registered · 226 of 238 announcements 1 other origin
Route objects
118 naming AS14813

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: 436 networks and 1,771 prefixes, as published 2026-10-13. 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

Cross-check