Martinique WhatsApp Full-Format Screening Tutorial

The core answer

The country code for Martinique (a French overseas province) is:+596。 Local numbers are unified as10-digit digit (including leading zeros), phone numbers are commonly used0696At the beginning, the landline phone is the beginning0596Beginning. When calling or writing to a business system from abroad, it should be changed toE.164 International format: 596 followed by 9 digits, for example+596696123456。 The core of number cleaning is: remove symbols, remove leading 0s, unify 596, fill in the digits, and then remove duplicates.

What is the structure of a Martinique number?

Martinique uses the French Numbering Plan, where the numbers are not separate 7- or 8-digit short numbers, but complete 10-digit local numbers.

Type	Local dialing format	International format (E.164)	Explanation
Mobile phone number	0696 12 34 56	+596 696 12 34 56	Phone numbers often start with 06, and the local format is 10 digits
Landline phones	0596 12 34 56	+596 596 12 34 56	The area code 596 also has a leading zero

The pattern here is:Local number = 0 9-digit number; International number = 596 9-digit number。 Remove the 0 at the top of the local 10-digit number, leaving 9 digits, and connect with it+596Behind it is the standard international format.

Note: In international format+596It may appear later596(fixed) or696(Mobile), this is the natural result of removing the leading zero from the local number, not a duplicate country code. Example+596 596 12 34 56That’s right.

How to convert international format to local format

Local format to international format:

0696 12 34 56 (10 local digits)
→ Remove the lead 0:696 12 34 56 (9 digits)
→ Add country code: 596 696 12 34 56

International format to local format:

596 696 12 34 56
→ Remove 596:696 12 34 56
→ Previous supplement 0:06 96 12 34 56

Dialing Martinique numbers from China:

• Direct dial from mobile phone: Input+596 696 12 34 56, press and hold the number key 0 to enter the number.
• Landline dialing: Input00 596 696 12 34 56(00 is an international access prefix).

Prelude 0, No. 00: Three hidden minefields

The most common errors in cross-border number data are concentrated in these three symbols.

Symbols	Function	Common mistakes
Preface 0	Only used for local dialing in Martinique	Keep 0 in international format, write as+596 0696 12 34 56
Number	E.164 Unified identification in international format	During cleaning, the number is deleted, causing the number to become a pure number and enter Excel
00	The international access prefix in countries like China is not part of the number	Write 00 together with the local 0, and it appears005960696...This double zero

The correct approach is:00 only appears when dialing in; all storage uses the _ number； 0 exists only in local numbers and is removed when entering E.164 format.

Spaces, parentheses, lines: display and storage formats

The following spellings are all clearly visible, but in the system, there are six completely different strings:

0696 12 34 56
0696-12-34-56
(0596) 12 34 56
+596 696 12 34 56
00596 696 12 34 56
+596696123456

If you use this data directly to match, deduplicate, or check for activation, inconsistent delimiters will cause a large number of true duplicates to be missed. The first step in cleaning must:Remove all spaces, parentheses, lines, tabs, and full-width characters, keeping only the numbers and prefix symbols。

Excel E 11: What to do if numbers become scientific notation?

Martinique international numbers have 12 digits after removing the ” number:

596696123456 → 596696123456 (12-digit number)

Numbers larger than 11 digits in Excel will automatically display as scientific notation, for example5.96696E+11, while also possibly changing the literal accuracy of the numbers. Local numbers0696 12 34 56If stored as a number in Excel, the leading zero will be directly absorbed, becoming 9 bits.

Repair method:

1. Re-import: Use Excel “Data → to import from text/CSV”, and set the number column to in the import wizardTextFormat.
2. If the number is already in scientific notation, first change the column format to “text,” then re-enter or use “column→ text to fix it.
3. In CSV, actively preserve text formatting, allowing cells to be marked with prefix tabs or written to cells="+596696123456"。
4. When exporting to the system, make sure the number field is in text type and do not convert it to a numerical value.

How to handle duplicate numbers and incorrect country codes

Repeat the numberCommon forms:

0696123456
 596696123456
 596 696 12 34 56
0596 12 34 56 ← This is a landline, not the same number as a mobile phone

The first three are actually four ways to write the same phone number. If you remove deduplications without cleaning, you’ll get three ‘non-duplicate’ records; Only after cleaning and deduplicated can you merge them into one entry.

Incorrect country codeMainly focused on confusion between French territories:

Incorrect country code	Actual ownership	The correct way to write Martinique
+590	Guadeloupe, Saint Martin, Saint Barthélemy	+596
+594	French Guiana	+596
+33	Mainland France	+596
596 is followed by a 10-digit number	Local 0 was also brought in	596 9 digits

Mainland France, French Guiana, Guadeloupe, and Martinique all use the French numbering system, which has similar structure and a very high probability of manual errors. When encountering these area codes during cleaning, you need to re-examine the number length and prefixes.

Standardized cleaning process for Martinique numbers

It is recommended to follow the steps below to avoid repeated work.

1. Clean up characters: Removes spaces, parentheses, lines, tabs, and full-width characters.
2. Unified prefix writing: will have everything00The starting number is converted to+Introduction; Retention+Number.
3. Delete the local frontier 0: If the number is marked by0But not at the beginning00, remove this 0.
4. Complete the country code: If the number is a 9-digit pure digit and confirmed to be a Martinique number, add+596。
5. Length verification:E.164 standard,+596The number must be 9 digits, and the total number of characters should be 13 (including).+）。
6. Country code correction: Check if the number has been misused+33、+590、+594, rejected or amended according to the rules.
7. Remove duplicates and merge them: Deduplicates using standardized numbers as unique keys, and merging duplicate records into the master record.

Before/After: Comparison of cleaning results

The following numbers are fictional examples for format demonstration purposes and are not real numbers.

Raw data	Existing problems	Standardized results
0696 12 34 56	There are spaces, but country codes are missing	+596696123456
+596 696 12 34 56	Standard writing style, but with spaces	+596696123456
00596 696 12 34 56	00 Prefix Space	+596696123456
+596 0696 12 34 56	The international format retains the leading zero	+596696123456
+596-696-12-34-56	Separated by horizontal lines	+596696123456
+33696123456	Incorrect country code 33	Marked as incorrect and pending manual confirmation
0596123456	Landline local format	+596596123456
696123456	Country code is missing	+596696123456

After cleaning:

• Mobile phone numbers are standardized to+596696123456
• Landline phones are unified as+596596123456
• The two are not confused with each other
• Duplicate records are directly matched by the same string

CSV cleaning example

Before cleaning (sample data):

Customer ID, phone number, and remarks
1001, 0696 12 34 56, Martinique customer
1002, 596 696 12 34 56, import via WhatsApp
1003, 00596 696 12 34 56, export to Excel
1004, 33 6 96 12 34 56, suspected to be a French number
1005, 0696123456, no separator

After cleaning:

Customer ID, phone number, cleaning status
1001, 596696123456, standardized
1002, 596696123456, repeats 1001
1003, 596696123456, standardized
1004, 33696123456, country code error, pending confirmation
1005, 596696123456, standardized

In the cleaning results, 1001, 1002, 1003, and 1005 are actually the same number, and after merging, there is only 1 valid customer; 1004 needs to be separately checked for the wrong country code.

What can a cleaned 596 number do?

Standardized Martinique numbers can be used for CRM data unification, international SMS preparation, activation status verification and active screening on social platforms like WhatsApp. If it’s just a few dozen manual cleanups, Excel is sufficient; If there are tens of thousands or more, it’s recommended to use a legitimate number cleaning platform for batch processing to avoid inconsistent manual formatting.

AppShaiSupports batch number standardization, deduplication, activation detection, and active filtering, covering major platforms such as WhatsApp, LINE, Telegram, Viber, Zalo, and Signal. Once connected, it can directly verify the cleaned Martinique number.

Common error quick reference table

Error types	Error example	The correct approach
International format retention preceding 0	+596 0696 12 34 56	Delete local 0 and write+596 696 12 34 56
00 and 0 are used interchangeably	005960696...	After 00, directly connect to country code 596
No country code added	696123456	Supplemented and completed+596696123456
Confusing the French territorial area names	+590696...	Identify as Guadeloupe, not Martinique
Numbers are saved as numbers	Excel display5.97E+11	Forced text format storage
Reducing deduplication without standardization	0696123456Give me+596696123456Count as two items	Standardize before duplication
Delete the number for storage	596696123456	Retain the number or export before automatically completing it

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