Article summary
Use Cuba’s 2024 eight-digit numbering plan to prepare +53 mobile candidates, run the four-field WS activity task, and compare dated cohorts without converting unknowns into inactive users.
Cuba WhatsApp activity screening should begin with the current +53 numbering plan, not a collection of historic prefix tables. A 2024 plan communicated by Cuba’s Ministry of Communications through the ITU specifies an eight-digit national number and identifies leading digit 5 for mobile telephone services. Once the list satisfies that baseline, activity time and active days can support a dated cohort.
Direct answer: prepare a Cuban mobile candidate as +53 followed by the eight-digit national number, preserve the source value and every exception, run WS activity screening from a one-number-per-line TXT file, and interpret the Excel result only within its recorded task date and business window.
The 2024 Cuban numbering plan gives the working baseline
The ITU record of the update from the Ministerio de Comunicaciones states that Cuba uses country code +53 and that the minimum and maximum national significant number lengths are both eight digits. Leading digit 5 identifies mobile telephony, while geographic fixed services and other uses occupy different national destination codes.
| Number evidence | Likely classification | Action |
|---|---|---|
| +53 5 XXXXXXX | Mobile candidate | Retain the eight-digit national number for review |
| +53 followed by geographic NDC | Fixed-service candidate | Check the current plan; do not mix into a mobile pool |
| Fewer or more than eight digits after +53 | Malformed or damaged source value | Quarantine rather than pad or truncate |
| 0053 prefix | International exit-code notation | Normalize the display to +53 |
Use the ITU-hosted 2024 Cuban national numbering plan as the current primary baseline. Historic operational bulletins can document change, but they should not replace the updated complete plan.
Repair format before interpreting activity
A source list may omit the plus sign, use 0053, contain spaces and punctuation, or arrive after a spreadsheet converted the telephone column into scientific notation. Retain original number and add prepared number and format check. Never overwrite the original value.
| Received example | Normalized candidate | Review note |
|---|---|---|
| +53 5 123 4567 | +5351234567 | Eight digits follow +53 |
| 0053-5-123-4567 | +5351234567 | Exit notation standardized |
| 05 123 4567 | Unresolved | Do not guess the country transformation from a local-looking value |
| 5.35123E+9 | Exception | Recover the digits from the source system |
The numbers in the table demonstrate shape only; they are not presented as live subscriber numbers. Placeholder examples should never enter an actual task.
Reconcile the four documented activity fields
The AppShai WS activity task accepts TXT input with one telephone number per line. The completed Excel workbook contains phone number, activity time, active days and WhatsApp mapped phone number. Before uploading, keep a separate mapping from the normalized value to the CRM record ID.
| Export field | Purpose | Unsupported inference |
|---|---|---|
| Phone number | Task-row identifier | Verified personal identity |
| Activity time | Dated activity observation | Message read receipt |
| Active days | Business-defined cohort input | Universal industry score |
| WhatsApp mapped phone number | Reconciliation and discrepancy review | Automatic replacement for the source phone |
Do not add gender, picture, age or business-account claims to an activity-only export. Those dimensions belong to other documented services.
Give connectivity uncertainty an explicit place
Cuban records may come from different acquisition periods, channels and operating conditions. An analyst should not invent a network explanation for a missing value. If activity time is absent, mapping cannot be reconciled or the task reports an exception, put the record in an unknown queue and document the observable problem.
Unknown is neither a cosmetic reporting category nor a synonym for inactive. A transparent report shows source rows, valid mobile candidates, deduplicated inputs, returned rows, reconciled rows and unknown rows as separate counts.
Choose the time window from the business purpose
A tourism enquiry, remittance-service relationship, cross-border support case and long-term customer-maintenance programme can require different review periods. This guide does not declare seven, thirty or ninety days to be a universal definition. The team should choose the window before seeing the result and keep the same rule when comparing runs.
- Short-cycle work: align the cohort with the event or service window.
- Long-lived lists: preserve lower-frequency snapshots and review movement over time.
- Unknown records: exclude them from the activity-rate denominator and explain why.
- Suppressed contacts: keep them outside communication queues even when activity fields qualify.
Execute the Cuban TXT workflow
- Retain the lawful source, customer ID, original number and collection date.
- Use the 2024 plan to separate +53 mobile candidates from fixed and malformed records.
- Normalize and deduplicate the working numbers without changing the source values.
- Create a TXT file with one telephone number per line.
- Select WS activity screening on the AppShai WhatsApp Number Checker.
- Export Excel and reconcile phone and mapped-phone values to the customer ID.
- Apply the pre-declared time window and preserve the unknown queue.
- Record the task date, list version, time-zone convention and row counts.
If the question is simply registration, use the corresponding WS registration service. If several other dimensions are genuinely necessary, review the WS full-format workflow and document why each additional field is required.
Online is not a read receipt, and activity is not permission
WhatsApp states that “online” means the application is open and connected to the internet; it does not mean the user has read a message. Last-seen and online visibility can also be affected by privacy settings and the contact relationship. A screening export should therefore not be described as real-time online surveillance or reading evidence.
See WhatsApp’s official explanation of last seen and online. Separately, activity does not prove consent to marketing. Consent source, suppression and opt-out controls still belong in the CRM.
How often should a Cuban activity result be updated?
One task reflects one point in time. A short campaign can follow its operating cycle, while a long-lived customer list can be checked when numbers change or a legitimate contact need arises. Frequent screening without a business reason does not make the data more useful.
Before comparing two runs, confirm the same +53 format, mobile-number scope, time convention and treatment of unknown values. When a number changes groups, check the original list, mapped phone and screening date before changing how it will be used.
