Cape Town Internet Exchange

Important note: There are only a limited number of 10Gb/s ports available on the current CINX switch, and all of the available
ports are current in use or reserved. Additional ports will be available as soon as new switches are installed at CINX.

Contact information

Questions relating to the INX policy, accounts, membership, eligibility to connect to the INX and other general issues should be addressed to the ISPA secretariat:

Hosting facilities

Questions relating to the hosting facilities for CINX should be addressed to Internet Solutions:

On-site support numbers for CINX (office hours)

  • Use the contact details mentioned below. The GSC will direct the request to the relevant people.
  • censortive word (subject: CINX IDC access on YYYY-MM-DD)
  • +27.11.575.0055

Note that this is the contact details for IS Global Service Center (GSC) that operates on a 24×7 basis.

For after-hour support, the GSC can still be contacted.

Also, read the cabling section to guide you on the process if you are currently not an IS customer.


As per ISPA regulations, the cabling in and to the IX environment is the responsibility of the host. Please do not arrange for cabling directly to the IX, rather work through the host.

If the ISPA member is already an IS client, they can work through their account manager or if they are not a customer, they can contact to initiate the cabling process.

Physical locations

The physical address for CINX is:
6th Floor, IS Cape Town
The Terraces
34 Bree street
Cape Town

Telkom information (CINX)

All Martis circuits into CINX should be terminated on node 2828.

The local STM-1 node contact is censortive word.

IP address allocation

The IPv4/IPv6 address blocks for CINX are:

DATA vlan: 196.223.22.X/24 and 2001:43f8:01f1:0::X:/64
VOIP vlan: 196.223.23.X/24 and 2001:43f8:01f1:1::X:/64

where X is assigned on application for a port.

Questions about the allocation of addresses for the INXes should be addressed to censortive word.

Switch configuration

The INX host is responsible for the maintenance of the switches at each INX. Requests for switch configuration changes should be sent to censortive word.

Traffic graphs

Traffic graphs for CINX are available at

Contact Details

Tel: 010 500 1200 or 087 550 1200
Fax: +27 (0) 87 606 4066
Email: queries [at]