Area Code 351 – Madiun/Magetan/Ngawi

Overview of Area Code +62 351

Area code 351 is a geographic National Destination Code (NDC) within the Indonesian numbering plan, assigned to the western part of East Java province. It serves the municipalities of Madiun and Magetan, as well as the regency of Ngawi. This region is strategically located on the border with Central Java and is traversed by the main railway and highway links between Surabaya and Yogyakarta.

Geographic Coverage and Administrative Jurisdiction

The code covers the following administrative areas:

• Madiun City – the capital of Madiun Regency and a major regional hub.
• Madiun Regency – surrounding rural and semi-urban districts.
• Magetan Regency – located west of Madiun, bordering Central Java.
• Ngawi Regency – the westernmost regency in East Java, adjacent to Central Java.

These areas fall under the Karesidenan Madiun (Madiun residency) historical region, but the NDC is now used for all fixed-line services within this specific geographic zone.

Dialing Formats

When calling a fixed-line number in the Madiun area, the subscriber number length is typically 7 to 8 digits after the trunk prefix. The complete international dialing format is:

• International: +62 351 XXX XXXX (or +62 351 XXXX XXXX for 8-digit numbers)
• Domestic (outside area code): 0351 XXX XXXX
• Local (within the same area code): XXX XXXX (without the area code)

For example, a fixed-line number in Madiun might be +62 351 456 789. If you are calling from abroad, you would dial your country's international access prefix (e.g., 011 from the US, 00 from most European countries), then 62, then 351, followed by the subscriber number. Do not dial the leading '0' used for domestic trunk calls.

Overlays and Numbering Changes

Currently, there is no overlay code for area 351; the code is exclusively used for this geographic region. However, as with many Indonesian NDCs, the subscriber number length may vary depending on the density of lines in the area. Always confirm the exact local number with the party you are calling, as the total length (area code + subscriber number) is standardized to 10 digits (excluding the leading '0') for the full national significant number.

Calling Instructions

• For local callers (within the 351 area): Simply dial the subscriber number without the area code.
• For domestic callers outside the area: Dial 0351 followed by the subscriber number.
• For international callers: Dial your country's exit code, then 62, then 351, then the subscriber number (omit the leading '0').

This area code is used for traditional PSTN (fixed-line) services, including analog lines, ISDN, and some VoIP-based fixed services that are assigned geographic numbers. Mobile numbers in Indonesia always begin with 08 and are not associated with geographic area codes.