Simpel in Netherlands not recognized

I use a Librem 5 phone with a Simpel subscription.

In the logging of the phone I see:

May 23 15:36:59 avalon mmsdtng[849]: ../src/service.c:activate_bearer() service 0xaaaacf4eacf0 setup 0 active 0
May 23 15:36:59 avalon mmsdtng[849]: ../src/service.c:activate_bearer() service 0xaaaacf4eacf0 waiting for 20 seconds
May 23 15:36:59 avalon mmsdtng[849]: ../plugins/modemmanager.c:set_context() Setting Context...
May 23 15:36:59 avalon mmsdtng[849]: ../src/service.c:mms_service_set_mmsc() service 0xaaaacf4eacf0 mmsc http://mms.invalid
May 23 15:36:59 avalon mmsdtng[849]: ../plugins/modemmanager.c:set_context() Max number of bearers: 1
May 23 15:36:59 avalon mmsdtng[849]: ../plugins/modemmanager.c:set_context() Attempting to autoconfigure settings
May 23 15:36:59 avalon mmsdtng[849]: ../src/service-providers.c:mmsd_service_providers_find_settings() mccmnc: 20416, apn: internet.access.nl
May 23 15:36:59 avalon mmsdtng[849]: ../plugins/modemmanager.c:set_context() Current Context APN: internet.access.nl, mmsd-tng settings MMS APN: apn.invalid
May 23 15:36:59 avalon mmsdtng[849]: ../plugins/modemmanager.c:set_context() Attempting to autoconfigure settings
May 23 15:36:59 avalon mmsdtng[849]: ../src/service-providers.c:mmsd_service_providers_find_settings() mccmnc: 20416, apn: internet.access.nl
May 23 15:36:59 avalon mmsdtng[849]: ../plugins/modemmanager.c:set_context() Current Context APN: internet.access.nl, mmsd-tng settings MMS APN: apn.invalid
May 23 15:36:59 avalon mmsdtng[849]: The MMSC is not configured! Please configure the MMSC and restart mmsd-tng.
May 23 15:36:59 avalon mmsdtng[849]: ../plugins/modemmanager.c:bearer_handler() Set MMSC: http://mms.invalid, Set Proxy: (null), Set MMS APN: apn.invalid
May 23 15:36:59 avalon mmsdtng[849]: ../plugins/modemmanager.c:bearer_handler() At Bearer Handler: path /org/freedesktop/ModemManager1/Modem/2 active 1 context_active 0
May 23 15:36:59 avalon mmsdtng[849]: ../plugins/modemmanager.c:bearer_handler() Error activating context!
May 23 15:36:59 avalon mmsdtng[849]: ../src/service.c:mms_service_bearer_notify() service=0xaaaacf4eacf0 active=0 iface=(null) proxy=(null)

Is it normal that there are multiple providers with the same mcc and mnc? I see multiple entries with mcc="204" mnc="16", starting here.

See also this information at the site of Simple.

Read here what I saw as a user of the Librem 5.