NZ SMS Shortcode

5823

Contact Energy SMS Customer

Carrier Service / Brand Cost to send Cost to receive Category Source
Spark Spark Contact Energy SMS Customer Free Free Utilities & Energy 2026-04-20
One NZ One NZ Contact Energy SMS Customer Free Free Utilities & Energy 2024-09-30
2degrees 2degrees Contact Energy SMS Customer Free Free Utilities & Energy 2026-04-22
Skinny Skinny Contact Energy SMS Customer Free Free Utilities & Energy 2026-04-20

How to stop messages from this shortcode

Reply STOP to the number 5823. Under the NZ TCF Mobile Messaging Services Code, commercial and premium senders are required to honour STOP requests within two business days.

Note: transactional notifications (delivery updates, appointment reminders, OTP codes) are generally exempt from STOP obligations — you need to unsubscribe via the service itself.

Contact details published by carriers

Phone
0800000428 — listed by One NZ
0800 8090 00 — listed by 2degrees
Website
https://contact.co.nz — listed by One NZ
https://contact.co.nz/ — listed by 2degrees

Frequently asked questions about shortcode 5823

Who owns shortcode 5823 in New Zealand?
Shortcode 5823 is operated by Contact Energy SMS Customer.
Which NZ mobile carriers list shortcode 5823?
Shortcode 5823 is listed in the public premium-text directories of Spark, One NZ, 2degrees, Skinny.
How much does it cost to send an SMS to 5823?
Sending a text to shortcode 5823 is free to send to (you only pay your plan's normal SMS rate). All prices include GST where applicable.
How do I stop receiving messages from shortcode 5823?
Reply STOP to 5823. Under the NZ TCF Mobile Messaging Services Code, commercial senders must honour STOP requests within two business days. Transactional messages like OTPs and appointment reminders are exempt — unsubscribe via the service itself.
What is the contact number for shortcode 5823?
The contact number for Contact Energy SMS Customer is 0800000428 (listed by One NZ); 0800 8090 00 (listed by 2degrees).
What is the website for shortcode 5823?
The website for Contact Energy SMS Customer is https://contact.co.nz (listed by One NZ); https://contact.co.nz/ (listed by 2degrees).
What type of service is shortcode 5823?
Shortcode 5823 is categorised as Utilities & Energy in this directory, based on data published by NZ mobile carriers.

Know more about this shortcode?

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Where does this data come from?

Each NZ mobile carrier publishes a list of the shortcodes active on their network. This directory downloads those PDFs daily and consolidates the latest versions. The “Source” column above shows the publication date of the document we saw this code in.

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