NZ SMS Shortcode

4221

2 Fact Auth DCS

Carrier Service / Brand Cost to send Cost to receive Category Source
Spark Spark 2 Fact Auth DCS Free Free Other 2026-04-20
One NZ One NZ 2 Fact Auth DCS $0.20 NZD Free Other 2024-09-30
Skinny Skinny 2 Fact Auth DCS Free Free Other 2026-04-20

How to stop messages from this shortcode

Reply STOP to the number 4221. 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.

Frequently asked questions about shortcode 4221

Who owns shortcode 4221 in New Zealand?
Shortcode 4221 is operated by 2 Fact Auth DCS.
Which NZ mobile carriers list shortcode 4221?
Shortcode 4221 is listed in the public premium-text directories of Spark, One NZ, Skinny.
How much does it cost to send an SMS to 4221?
Sending a text to shortcode 4221 is between NZ$0.00 and NZ$0.20 per message depending on your carrier. All prices include GST where applicable.
How do I stop receiving messages from shortcode 4221?
Reply STOP to 4221. 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 type of service is shortcode 4221?
Shortcode 4221 is categorised as Other 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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