asn.dev

Autonomous system

AS30689 FLOW-NET

Unclassified ARIN

IPv4 addresses 174K 108 prefixes
IPv6 prefixes 1 counted as prefixes, not addresses
Countries 1 mostly JM
Exchanges 1 recorded by PCH
Upstreams 1 9 downstream
Flagged prefixes 0 none

Summary

FLOW Jamaica

Jamaica · AI-generated

residential isp cable dsl

FLOW-NET is operated by FLOW Jamaica, the consumer telecommunications arm of Liberty Caribbean.

What it's used for

  • The address space carries residential and business access traffic, evidenced by reverse DNS entries such as DYNAMIC-dsl.cwjamaica.com and STATIC.flowja.com.
  • With 173,568 IPv4 addresses announced across 108 prefixes and only 10 observed neighbours, the high address-to-neighbour ratio indicates an access/eyeball network rather than a transit provider.

Notable

  • Registrants include Cable and Wireless Jamaica, Columbus Networks USA, Inc., and FLOW, reflecting the operator's history and current branding.
  • Cable & Wireless Jamaica rebranded to FLOW Jamaica as part of a regional rebranding under Liberty Caribbean.
  • The inventory includes a mix of legacy CWJ blocks and newer FLOW-registered space, with a single IPv6 prefix announced.

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

Recorded at 1 exchange in 1 country, largest first.

ExchangeLocationTheir address
Jamaica Internet Exchange PointKingston, Jamaica2001:504:3e::30

Transit providers

1 upstream, 9 downstream and 12 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS23520Columbus Networks USA, Inc.11,258

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-26, 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 108 prefixes · 174K addresses IPv6 1 prefixes

CountryNamePrefixes
JMJamaica109

Registry

Allocation record

ARIN · via Atlas (registry + RDAP)
Registry
ARIN
Handle
AS30689
Registry name
FLOW-NET
Registrant
FLOW
Abuse contact
cwc-csirt@cwc.com
Registered
2003-12-05
Last changed
2026-09-16
Allocation
assigned

Routing security

RPKI and IRR

Full detail
RPKI
0% valid · 0 valid, 195 with no ROA
ROAs
0 authorising AS30689
ASPA
no ASPA record
IRR
30% registered · 59 of 195 announcements 2 other origin
Route objects
34 naming AS30689

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: 445 networks and 1,817 prefixes, as published 2026-10-27. 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