2025-09-18 Number Insights

2025-09-18 Number Insights

 

Community Attendees:

@Ludovic Robert @Jorge Garcia Hospital @Toshi Wakayama @Surajj Jaggernath @Axel Nennker

Community Attendees:

 

LF Staff:

 

Agenda

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  • Release agenda update

  • OTP

  • SIM Swap

  • Device Swap

  • Number Verification

Minutes

Release agenda update

PR prepared for M4

 

OTP Validation

 

SIM Swap

  • Public Release merged - tag r3.2

    • it features:

      • sim-swap 2.1.0

      • sim-swap-subscriptions 0.3.0

    • Missing test statement

  • Question from GSMA French Market:

    • We have a probable inconsistency in France (discussed in GSMA Market Champion) for the sim swap check behavior alignment.

      Suppose a customer subscribed a new line Sept 1st, 2025.
      An application is performing a sim-swap- check Sept 10th, 2025 with a maxDate set to (1200hours) 50 days

      • Some French operators consider that when no sim swap occurred, activation date is a kind of sim swap and answer TRUE

      • While other only consider real sim swap (change of sim within same operator) and answer FALSE

      (Note: same thing for the case of a portability – not a sim swap for some and a sim swap for other)

    • Response from @Jorge Garcia Hospital Telefonica is supporting current API specification, considering MSISDN activation/portability as a SIM Swap, in fact considered as the original Swap definition of "change of binding between IMSI and MSISDN".

    • @Toshi Wakayama answered for KDDI - @Axel Nennker will check.

      • KPN consider also a new activation as a sim swap

Device swap

Number Verification

API clarification

  • We discussed the requirements for clarification between few APIs: Device Swap, SIM Swap, Number Recycling, Tenure

    • Probably a whitepaper could be helpful

    • @Jorge Garcia Hospital will prepare a draft.