Update - Colt are keen to emphasise on their status page (https://www.colt.net/status/) how this didn't affect customer systems. They have also marked their cyber-incident page at https://www.colt.net/go/cyber-incident/ to "noindex" to hide it from search engines, and it isn't linked anywhere on their website. None of them mention number portability either, which they continue to not do, despite us now being in day 16.
Aug 28, 2025 - 12:24 UTC
Update - Colt have contacted us to say that "all port-in and port-out activities are currently on hold until next week, as we’re still working internally to stabilize the situation"
Aug 27, 2025 - 07:54 UTC
Update - Colt are still not processing number ports.
Please continue to submit porting orders normally, we have a queue and are chasing them daily.
Aug 26, 2025 - 10:10 UTC
Colt are still not processing number ports.
Aug 24, 2025 - 11:42 UTC
Update - Other than restating their status page to say this was a cybersecurity incident from day one (formerly an "IT issue"), and their compromised documents being mid-auction, there is no update here. Their porting desk appear to have stopped the daily updates and are still not processing orders.
Aug 22, 2025 - 11:58 UTC
Update - There is no update here other than Colt's porting team have advised there will be no imports or exports "until further notice". We continue to queue POV and porting orders for them.
Aug 19, 2025 - 12:51 UTC
Update - Colt are still unable to process number ports, we assume as a consequence of their well publicised cyber-attack. A list of compromised files, which is asserted to be the files compromised by the attacks is at (https://www.klos.com/~john/colt_filename_tree.txt)
This list contains a number of interoperability documents between Simwood and Colt. The list also contains documents that appear to be Number Portability Order Forms, although it is unclear as to whether these relate to Simwood customers. NPORs will contain some information about the Subscriber changing providers, e.g. name, address, and telephone numbers. Additionally, there is other information clearly of a sensitive nature on the list, but that does not, as far as we can tell, relate to Simwood and its customer’s relationships.
At this time, we understand that Colt are working to prevent further disclosure, however, this is all the detail we have at this time. Our customers should engage their Data Protection Officers regarding the consequences of the attack on Colt as a matter of urgency.
Aug 18, 2025 - 14:23 UTC
Update - Colt have now confirmed an ongoing cyber-incident (https://www.colt.net/status/). At the moment voice traffic on existing ported numbers seems unaffected.
Aug 14, 2025 - 17:06 UTC
Monitoring - Colt have advised that they are unable to complete any import or export porting orders until further notice. Their Status page (https://www.colt.net/status/) suggests an IT issue while online speculation (https://cyberplace.social/@GossiTheDog/115022343170487477) is of an undisclosed cyber attack. We will advise when we have further news.
Aug 14, 2025 - 13:55 UTC
Voice
?
Operational
90 days ago
100.0
% uptime
Today
API and Portal
?
Operational
90 days ago
100.0
% uptime
Today
Availability Zones
Operational
90 days ago
100.0
% uptime
Today
London
?
Operational
90 days ago
100.0
% uptime
Today
Slough
?
Operational
90 days ago
100.0
% uptime
Today
Manchester
?
Operational
90 days ago
100.0
% uptime
Today
Availability Zones (US)
Operational
90 days ago
100.0
% uptime
Today
San Jose (US West)
Operational
90 days ago
100.0
% uptime
Today
New York (US East)
Operational
90 days ago
100.0
% uptime
Today
Operations Desk
?
Operational
90 days ago
100.0
% uptime
Today
SMS
?
Operational
90 days ago
100.0
% uptime
Today
Operational
Degraded Performance
Partial Outage
Major Outage
Maintenance
Major outage
Partial outage
No downtime recorded on this day.
No data exists for this day.
had a major outage.
had a partial outage.
Related
No incidents or maintenance related to this downtime.