Prefix 31 in Indonesia
Data for prefix 31 as published in Indonesia's official numbering plan — the original allocation, not any specific number's current carrier, since numbers can be ported.
- Carrier (original allocation)
- —
- Line type
- Landline
- Region
- Surabaya
- Example format
- +62 31 XXXXXXX
Indexed numbers
No indexed numbers for this prefix yet.