Call & SMS Block Service
  • Subscription Code Dial *420#
  • Unsubscribe Dial *420#
  • Charges Rs.1.80 (Incl. Tax)/day

*This subscription will continue unless unsubscribed; and remain applicable

Now with Jazz’s Call & SMS Block service customers can block unwanted calls and SMS from on-net & off-net numbers

Total of 50 numbers can be added in the Black List and 50 in the whitelist. Any number added in both the lists will be counted twice.

Available *420# Options:

  • Add number to Blacklist
  • Check number in Blacklist
  • Remove Number
  • Unsubscribe
  • Change Blacklist Tone
  • Call Blacklist History
  • View Blacklist

Help Command:

  • Simply send “Help” to 420 to get all SMS commands to use the service
How can I subscribe to the “Call & SMS Block” service via dial code?

To subscribe to the “Call & SMS Block” service via dial code, simply dial *420#.

How can I unsubscribe “Call & SMS Block” service via dial code?

To unsubscribe “Call & SMS Block” service via dial code, simply dial *420# and select option 4

What happens if I unsubscribe & then re-subscribe?

The Block list is removed as soon as the service is un-subscribed, and you will start receiving calls and SMS from all the numbers. If the service is re-subscribed, you need to add numbers to the block list again.

What will happen if the prepaid customer has no balance?

The customer will continue to enjoy service. However, he will be charged for the service, in arrears, once he recharges his account with a sufficient amount.

What if I don’t have sufficient balance at the time of subscription?

The service will be activated however charges will be recovered in arrears, once the account is recharged with sufficient balance.

How can I add a number to the blacklist via dial code?

To add a number to the blacklist via dial code, simply dial *420# and select option 1.

How many numbers can be added to the blacklist?

50 numbers can be added to a blacklist

If the same MSISDN is added in both white and black lists, then will it be counted twice?


How can I delete a number via dial code?

To delete a number via dial code, dial *420# and select option 3.

Is it necessary to activate the blacklist for screening incoming calls that are in the blacklist?

Yes, it is necessary, or else the blacklist will not block those calls. If you are subscribing via the dial code menu, the blacklist is automatically activated.

  • This service is available for Jazz Prepaid and Postpaid customers.
  • This subscription will continue unless unsubscribed, and charges remain applicable.
  • Jazz is not using any information provided by the customer at any stage to display the name of any customer.
  • The service will be charged on a daily basis, however, in case there is no balance, the service will continue, and the customer will be charged, in arrears, once he recharges his account with sufficient amount.
  • Jazz reserves the right to change any terms and conditions of this service at any time.
  • These terms and conditions are in addition to the general terms and conditions duly approved by PTA and agreed to by the customer in CSAF/eCSAF at the time of activation of connection/SIM.
  • Jazz reserves the right/discretion to set/change the price/rate of any offer/package/bundle or withdraw/change/revoke such offer/package/bundle at any time. Where required under PTA’s regulations, prior notice shall be given to affected customers accordingly.
  • Offer Price/charges of each offer/package/bundle shall be subject to all applicable taxes, if any, irrespective of the fact in which area of the country the requisite offer/package/bundle is activated/service availed.
  • The charging system reserves a certain proportion of available data volume in MBs of your package against opening/accessing each application/website on the device, therefore, the simultaneous opening/accessing of multiple applications and/or websites may result in reserving all your available data volume in MBs of your package and may start charging on the base rate of your package.
  • The amount of balance and recharge required for bundles may be rounded up to the nearest whole number.
  • In case of any queries, questions, complaints, or additional requirements, please email us at : [email protected]
  • Unwanted and unethical (unreasonable) messages can be reported by texting SENDER’s NUMBER (SPACE) message to 9000 –PTA
  • Using a SIM that is not in your name or allowing others to use your SIM is a crime – PTA
  • Dial 420 to block unsolicited calls/messages (charges applicable).
  • Unsolicited marketing communication can be blocked using the “Do Not Call Register” service by texting “ON” or “SUB” to 3627. It is a free-of-cost service provided to Jazz customers.
  • The term “Purchase of Sim” means procuring/acquiring connection to the network of PMCL by a customer for availing telecommunication and other related services from PMCL. SIM always remains the property of PMCL and by issuing SIM to the customer, only rights to use are given and no ownership is transferred to the customer in any manner, whatsoever. The customer is bound to return the SIM to PMCL in case he stops using the service or the agreement is terminated, or he changes the network through MNP.
  • Bill date for all postpaid subscribers will be the 2nd day of every month. Due to this change, customers will get a separate bill for the difference in days for the execution month. Min/MB charging will be prorated as per the package.
  • Details of applicable Taxes/charges on usage and recharge in Pakistan and AJK are given below:
  • Advance income tax rate is @15% on each recharge.
  • Rate of sales tax in Pakistan and AJK is 19.5%
  • GB is exempted from taxes.
  • A late payment fee of PKR 50 will be charged on bills remaining unpaid after the due date.
  • By subscribing to the service, the customer is giving consent for receiving additional information/promotional content of various products & offers embedded in the flash SMS.