NZ SMS Shortcode
4423
Feedback and Test Code other services
| Carrier | Service / Brand | Cost to send | Cost to receive | Category | Source |
|---|---|---|---|---|---|
Spark
|
Feedback and Test Code other services | Free | Free | Other | 2026-04-20 |
One NZ
|
Homecare Medical Migrated from | Free | Free | Other |
2024-09-30 historical
|
2degrees
|
Feedback and Test Code other services | Free | Free | Other |
2025-12-31 test
|
Skinny
|
Homecare Medical | Free | — | Other | n/a |
How to stop messages from this shortcode
Reply STOP to the number 4423. 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.
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.