About 1O1O Network Notes

1O1O Message – 1O1O Network Notes (1O1ONN) is a service specially designed for corporate customers to send SMS to another person or group of persons, within or outside the organization through internet browser.

Notice

Due to service enhancement, please access the Network Note service via https://nn.1010.com.hk/ promptly.

Your login details remain the same.

Please note that the existing links (http://1010nn.hkcsl.com/nnn/ and https://1010nn.hkcsl.com/nnn) will no longer be valid after June 1, 2025. Please bookmark the new link.

For any questions or need further assistance, please do not hesitate to reach out Mobile Technical Support.
Email: tech.support@hkcsl.com / Hotline: +852 2888 2882