Specially designed for Grassroots' Club members

Golden Number Offers with Every Plan

Offers are valid till 14 April 2026

Get the latest smartphones paired with flexible mobile plans — all at great value. As a Grassroots exclusive, each phone bundle includes a Golden188 number (worth $191.56) at no extra cost. Enjoy premium numbers and top-tier devices, all in one simple package.

Ocean Blue

Nebula Red

$ 169 One time (U.P.: ~~$388~~)

Includes Golden188 mobile number (worth $191.56)
Includes Z-One 4G Prime Plan for 4 months
Additional 2 months free subscription for port-in^

Sparkle Black

Starlight White

$ 249 One time (U.P.: ~~$468~~)

Includes Golden188 mobile number (worth $191.56)
Includes Z-One 4G Prime Plan for 4 months
Additional 2 months free subscription for port-in^

Starry Black

Moonlight Purple

$ 349 One time (U.P.: ~~$568~~)

Includes Golden188 mobile number (worth $191.56)
Includes Z-One 4G Prime Plan for 4 months
Additional 2 months free subscription for port-in^

Plume Purple

Graphite Grey

$ 1019 One time (U.P.: ~~$1238~~)

Includes Golden188 mobile number (worth $191.56)
Includes Z-One 4G Prime Plan for 4 months
Additional 2 months free subscription for port-in^

Space Black

Pearl White

$ 1569 One time (U.P.: ~~$1788~~)

Includes Golden188 mobile number (worth $191.56)
Includes Z-One 4G Prime Plan for 4 months
Additional 2 months free subscription for port-in^

Space Grey

Grey

$ 459 One time (U.P.: ~~$678~~)

Includes Golden188 mobile number (worth $191.56)
Includes Z-One 4G Prime Plan for 4 months
Additional 2 months free subscription for port-in^

Note that choice of colours are subject to stock availability
Prices listed are inclusive of GST

All phone bundles come with

Golden188 number

(worth $191.65)

Choose from attractive number ranges like 8XXX ABBA or 8XXX ABAB, worth $191.56 (incl. 9% GST).
Valid only with an active Zero1 plan
Selection of Golden188 numbers is subject to availability at the point of redemption

4-month Z-One Prime (4G) Plan

(worth $48)
Plan at $12/month thereafter
See plan details

400GB local data (monthly)
FREE 5G^ access (monthly, 3mths)
FREE 5GB RoamAP* data roaming (monthly)
FREE 600GB† Malaysia & Indonesia data roaming (one time, 365 days)
Local talktime 300 mins (monthly)
Local SMS 100 (monthly)
Free SIM card registration & activation
Free Caller ID and Incoming Calls
No contract
No excess data charges

Port-in Promotion: Get 2 additional months of free subscription when you port-in before 30 June 2025.

Free months not applicable for port-in from Singtel, Gomo, Heya, Zym, Vivifi, CMLink

*Data roaming is for Malaysia, Indonesia, Thailand, Taiwan, Philippines, India, Japan, South Korea, Australia, China, Hong Kong, Macau and Vietnam.
^Not applicable for port-in from Singtel, Singtel Brands (Gomo & Heya) and MVNOs using Singtel’s network (Zym, Vivifi & CMLink)
†This promotion includes free additional 600GB of data roaming for Malaysia and Indonesia. The free data is valid one time for 365 days only and does not reset thereafter.
Please note that you may need to opt in for pay-as-you-roam services, including roaming voice, SMS, and data.

How to get your Golden188 number with a phone bundle

Step 1. Choose a Phone Bundle

All phone bundles include a Golden188 number at no extra cost. Just pick your preferred bundle to begin.

Step 2. Proceed with your order online

Place your order online and fill in the personal details form. A Golden188 number (worth $191.65 incl. GST) is automatically included at no extra charge. You’ll receive a confirmation email once your order is successful.

Step 3. Arrange for Collection

After your order is confirmed, Zero1 will contact you to schedule your collection at the Zero1 Customer Service Centre.

Step 4. Sign up for a Z-One Prime plan and select your Golden188 number

At the time of collection at the Zero1 Customer Service Centre, you’ll sign up for a Z-One Prime plan and, during the sign-up process, select your Golden188 number (in the 8XXX ABBA or 8XXX ABAB format) from the available options. Your phone will be provided as part of the bundle.

Step 5. Enjoy your new number

Your Zero1 service will be activated — and your new Golden Number is ready to use!

Our mobile plans are designed for every lifestyle — with generous data, talktime, and SMS. Plus, enjoy a Golden38 number (worth $38.71) as a Grassroots’ Club member. Simple, rewarding, and made for you.

Streamo Bold (4G)

300GB local data for $10.10/month

300GB local data (monthly)
Free 5GB RoamAP* data roaming (monthly)^
300 minutes Talktime & 100 SMS (Outgoing, local)

FREE 5G Access^ (one time, 3mths)
FREE 600GB Malaysia & Indonesia data roaming (one-time, 365 days)^

Streamo Freedom

400GB local data for $15.00/month

400GB local data (monthly)
Free 15GB RoamAP* data roaming (monthly)^
600 minutes Talktime & 100 SMS (Outgoing, local)

FREE 5G Access^ (one time, 3mths)
FREE 600GB Malaysia, Indonesia & Thailand data roaming (one-time, 365 days)^

Z-One 4G Prime

400GB local data for $12.00/month

400GB local data (monthly)
Free 5GB RoamAP* data roaming (monthly)^
300 minutes Talktime & 100 SMS (Outgoing, local)

FREE 5G Access^ (one time, 3mths)
FREE 600GB Malaysia & Indonesia data roaming (one-time, 365 days)^

Z-One 5G Prime

500GB local data for $20.00/month

5G Enabled
500GB local data (monthly)
Free 15GB RoamAP* data roaming (monthly)^
300 minutes Talktime & 100 SMS (Outgoing, local)

FREE 600GB Malaysia, Indonesia & Thailand data roaming (one-time, 365 days)^

*Data roaming is for Malaysia, Indonesia, Thailand, Taiwan, Philippines, India, Japan, South Korea, Australia, China, Hong Kong, Macau and Vietnam.
^Pay-as-you roam services are for voice and SMS only. Opt-in might be required to be enabled, including data roaming.
Protects you from unintended roaming data usage. Roaming data will only function with a free or purchased roaming data pack.

All mobile plans come with

Golden38 mobile numbers

(worth $38.71)

Choose from attractive number ranges like 8XXX ABAA or 8XXX AABA, worth $38.71 (incl. 9% GST)
Valid only with an active Zero1 plan
Payment of the first month and the one-time cost of the Golden38 number must be made upfront. The amount of $38.71 will be credited to your bill within one month.

How to get your Golden38 number with a mobile plan

Step 1. Choose a mobile plan

Go to zero1.sg and click “Get the plan now” under your preferred mobile plan.

Step 2. Select SIM type & Get a new number

Start by selecting your preferred SIM type (Physical SIM or eSIM).
When prompted to choose a number option, select “Get a new number with us.”

Step 3. Select a Golden38 number

Click on the “Golden Numbers” tab and choose your preferred number under Golden38 (in the 8XXX ABAA or 8XXX AABA format).
Once selected, proceed with your sign-up process.

Step 4. Singpass verification

Step 5. Confirm your details & select a delivery method

After completing Singpass verification, your personal details will be automatically filled in. Please review the information for accuracy.
If required, select your preferred delivery method. Then, review the SIM activation instructions before proceeding.

Step 6. Enter your reference code

At the Order Summary page, enter the reference code (coupon code) provided in the Grassroots’ Club email into the promo code field before proceeding with payment.

Step 7. Complete payment and finalise your order

Make the upfront payment to secure your selected number and plan.
*Golden38 numbers cost $38.71 (incl. GST) and an upfront payment is required. The amount will be fully rebated to your bill within one month.

Step 8. Payment successful

After successful payment, you will receive an order confirmation email.
If you selected a Physical SIM, the confirmation email will be sent once your order is placed.
If you selected an eSIM, you will receive both the confirmation email and a separate eSIM activation email.

For a full step-by-step walkthrough — including screenshots and explanations — visit our detailed sign-up guide for Zero1 mobile plans.

Collection at Zero1 Customer Service Centre

Note that you require an appointment for the collection, and do bring along your ID for the appointment.

Zero1 Customer Service Centre

25 Harper Road
#01-06 Harper Point
Singapore 369683

(Near Circle Line Tai Seng MRT Station, Exit B
Near 70281 aft Tai Seng Stn bus station)

Mondays to Fridays
09:30 am to 05:30 pm
Saturdays
10:00 am to 05:30 pm
Sundays
09:00 am to 05:30 pm

Closed on Public Holidays

Terms & Conditions - Phone Bundles

The phone bundle promotion is valid for new and port-in subscriptions for a limited time.
The one-time payment made for the bundle covers one OPPO handset in full and 4 months of subscription to the Z-One 4G Prime plan. At the end of the promotion period, plan rates will revert to the respective plan.
Data usage for the bundled mobile plan is limited to 400GB per month.
The promotion includes free additional 5GB RoamAP data roaming for 13 countries – Malaysia, Indonesia, Thailand, Taiwan, Philippines, India, Japan, South Korea, Australia, China, Hong Kong, Macau and Vietnam. Roaming data may not automatically activate for pass holders. However, you will have the option to opt-in if needed.
This promotion includes free additional 600GB of data roaming for Malaysia and Indonesia. The free data is valid one time for 365 days only and does not reset thereafter.
The free 3 months 5G service included in the bundle mobile plan is only applicable for new mobile number sign-ups, non-Singtel port-ins and non-Singtel-brand port-ins. Singtel brands include GOMO and Heya.
The bundled Z-One 4G Prime plan is subject to its terms and conditions.
The promotion is non-transferable and not valid with other promotions, discounts or privileges.
The bundled plan cannot be changed or terminated during the 4-month period.
The listed promotional rates are inclusive of GST and are subject to change without prior notice.
Zero1 reserves the right to reject and/or terminate the subscription without any advance notice if the subscriber’s submitted ID is invalid or the payment deduction is unsuccessful.
Zero1 reserves the right to withdraw the promotion or amend the terms and conditions without prior notice. Other registration terms and conditions apply. Do check this page for any updates to the terms and conditions.
By subscribing to and of the promotional bundle plans, you agree to the above terms and conditions.

Terms & Conditions - Mobile Plans

The promotion is available for a limited time only.
Data usage is limited according to the monthly cap of each plan.
The promotion includes one-time 5G access for the first three months on a Non-Standalone (NSA) network. This is not applicable for Singtel and Singtel-brand (GOMO and Heya) port-in. The plan will revert to 4G service thereafter.
The promotion includes free monthly RoamAP data roaming for 13 countries — Malaysia, Indonesia, Thailand, Taiwan, Philippines, India, Japan, South Korea, Australia, China, Hong Kong, Macau, and Vietnam. Streamo Bold and Z-One 4G Prime include 5GB RoamAP per month, while Streamo Freedom and Z-One 5G Prime include 15GB RoamAP per month.
Roaming data may not automatically activate for pass holders; however, you will have the option to opt-in if needed.
This promotion includes a one-time 600GB data roaming bonus, valid for 365 days and non-renewable. Streamo Bold and Z-One 4G Prime include 600GB of roaming data for Malaysia and Indonesia, while Streamo Freedom and Z-One 5G Prime include 600GB of roaming data for Malaysia, Indonesia, and Thailand.
Port-in by 30 June 2025 to enjoy a free 3-month subscription after the first 3 months. Customers who port-in and stay for 3 months will enjoy their 4th, 5th, and 6th months free. The actual free months might vary slightly depending on your bill cycle. Free months are not applicable for Singtel, Singtel- brands (GOMO and Heya) and MVNOs using Singtel’s network (Zym, Vivifi and CMLink) port- in.
The promotion is non-transferable and not valid with other promotions, discounts or privileges.
The promotion will be void if the plan is changed or account is suspended, terminated or overdue/delinquent during the subscription period.
Plan rates and bundled services are subject to change without prior notice. Other usage and value-added charges apply.
No refund will be issued for termination within 1 month of activation and/or port-out.
Zero1 reserves the right to reject and/or terminate the subscription without any advance notice if the subscriber’s submitted ID is invalid or the payment deduction is unsuccessful.
Zero1 reserves the right to withdraw the promotion or amend the terms and conditions without prior notice. Other registration terms and conditions apply.
By subscribing to the promotional plan, you agree to the above terms and conditions.

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We are happy to answer any questions you may have! Simply message us on Facebook or send us an email at yes@zero1.sg.

More information

Zero1 develops life solutions by making it #AllAboutYou, ensuring that you receive #OnlyTheBest of what we can offer so you may live your life with #ZeroLimits.

Zero1 is a licensed Mobile Virtual Network Operator (MVNO) that provide a number of mobile plans with unlimited data. Do check out our offerings on the Zero1 website today.