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Columbia Gas Transmission Notice 25939522

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TSP Name

Columbia Gas Transmission, LLC

TSP

054748041

Date

Time

Notice ID

25939522

Notice Type Description: Computer System Status
Notice Stat Desc: Initiate
Prior Notice:
Critical: Y
Reqrd Rsp Desc: No Response Required

Post
Notice Effective
Notice End

Response

06/23/25
06/23/25
07/23/25



8:53:00 AM
12:00:00 AM
12:00:00 AM



Subject: Upcoming Firewall Changes for EDI Trading Partners – June 26, 2025

Author: Madhu Singh

Notice Text

In our continuing effort to enhance the reliability and security of our systems, TCeConnects will be adding some additional firewalls to our infrastructure.  This change will not affect inbound traffic to our network, but it will change the originating IP address for the EDI transactions we are sending from TCeConnects. The change will be implemented in the Production Environment on Thursday, June 26, 2025.   If your system requires rules to allow inbound EDI traffic, please note that these originating IP addresses will need to be allowed.
  • 35.155.206.14
  • 44.246.65.167
  • 52.32.164.193
 Contact TC eConnects Technical Support at 866-581-6487 should you have any other questions or require assistance.