What stays the same when a number is ported?
The key benefit is keeping the mobile number while changing the service provider. That makes porting different from taking a new connection with a different number.
TRAI’s Mobile Number Portability FAQ explains the facility and its process. It describes the old provider as the donor operator and the new provider as the recipient operator.
Keeping the number does not mean every part of the old connection transfers unchanged. The new operator has its own plan, activation process and service arrangements. The customer should check those details rather than assume the old recharge balance and benefits follow the number automatically.
Which terms appear during porting?
| Term | Meaning |
|---|---|
| Donor operator | The provider the customer is leaving |
| Recipient operator | The provider receiving the ported number |
| UPC | Unique Porting Code used in the authorised request process |
| Porting request | The customer’s request to move the connection |
| Activation | The stage at which the connection works on the new provider’s network |
A UPC is not a recharge coupon or retailer login code. It relates to the subscriber’s porting request. A customer who has obtained a UPC has not necessarily completed the switch.
Why eligibility and completion need separate checks
TRAI lists conditions for obtaining a UPC and describes the subsequent request and activation steps. Its guidance includes matters such as the connection’s status, outstanding postpaid dues and recent SIM replacement.
Read the current conditions for the customer’s case instead of promising that every number can move immediately. Corporate connections and service-area arrangements can need additional attention. The official messages about submission and scheduling are more useful than an assumed completion date.
This glossary does not reproduce porting deadlines, fees or SMS instructions that may change. Use the current TRAI FAQ and the chosen operator’s official channel when actually initiating a port.
What changes for a recharge retailer?
After a number moves, the operator previously used for its recharge may no longer be correct. Ask the customer which network now serves the number and use the supported verification available in the recharge system.
Do not select an operator purely from the first few digits. Do not rely on an old successful receipt as proof of the current network. A receipt shows what was submitted at that time, not every later change to the connection.
Our mobile and DTH recharge page describes the retailer service. Explaining MNP does not mean SiOnline provides SIM porting or that every SiOnline retailer is an authorised point of sale for a mobile operator.
An example after a network change
Illustrative example: A regular customer asks for the same recharge amount as last month. Their mobile number is unchanged, but they have recently moved to a different operator.
The retailer confirms the current operator and asks which benefit the customer wants. The old operator’s pack name and price should not be treated as the new operator’s offer. Before submitting, both parties check the number, operator and selected plan.
If the first attempt has already failed or is pending, the retailer follows the recharge-status guide before trying again. Porting history is useful context, but it is not proof of the outcome of that payment.
Questions about number portability
Does a new SIM always mean a new mobile number?
No. In a porting process, the number is retained while the operator arrangement changes. SIM replacement and number portability should not be treated as the same request.
Does obtaining a UPC complete the port?
No. It is part of the request process. Follow the operator’s official submission and activation information.
Can I recharge using an old operator selection?
Confirm the current operator before submitting. The purpose of keeping the number is continuity for the subscriber, not a guarantee that old recharge instructions remain correct.