asn.dev

Autonomous system

AS6597 COLOBLOX

Hosting ARIN

IPv4 addresses 37.12K 13 prefixes
IPv6 prefixes 4 counted as prefixes, not addresses
Countries 1 mostly US
Exchanges 0 recorded by PCH
Upstreams 2 6 downstream
Flagged prefixes 0 none

Summary

Coloblox Data Centers

United States · AI-generated

hosting legacy

The network of Coloblox Data Centers Inc, a carrier-neutral colocation provider operating in the Atlanta, Georgia metro area, registered under the handle COLOBLOX.

What it's used for

  • Colocation and connectivity for tenant servers. Coloblox rents cabinet space by the U and by the rack and provides carrier-neutral upstream, so the addresses on this AS are largely assigned to customer equipment in its facilities.
  • Reverse DNS confirms the shape: edge routers appear as er5.atl1.coloblox.net, with tenant and affiliate networks named separately underneath.

Notable

  • This is hosting and colocation space. Addresses here front servers, not homes or phones, and a single prefix can carry many unrelated tenants.
  • Alongside its ARIN blocks, the AS announces several /24 networks out of RIPE address space, so its inventory is not confined to a single registry's ranges.

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

2 upstream, 6 downstream and 12 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS6939Hurricane Electric LLC1,351
AS3257GTT Communications Inc.113

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 13 prefixes · 37.12K addresses IPv6 4 prefixes

CountryNamePrefixes
USUnited States of America17

Registry

Allocation record

ARIN · via Atlas (registry + RDAP)
Registry
ARIN
Handle
AS6597
Registry name
COLOBLOX
Registrant
Coloblox Data Centers Inc
Abuse contact
abuse@coloblox.com
Registered
1996-06-03
Last changed
2024-02-03
Allocation
assigned

Routing security

RPKI and IRR

Full detail
RPKI
79% valid · 19 valid, 5 with no ROA
ROAs
11 authorising AS6597
ASPA
no ASPA record
IRR
96% registered · 23 of 24 announcements 1 other origin
Route objects
35 naming AS6597

Reputation

Classification and threat

Hosting Datacenter or cloud provider. Addresses are servers, not people.

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