Article summary
A complete Telegram number-checking tutorial covering permission, international number formatting, TXT preparation, task selection, Excel validation, and CRM import.
The operational Telegram number-checking flow is straightforward: prepare TXT with one phone number per line, choose Registration, Activity, or another defined TG task, and download Excel when processing finishes. The result becomes difficult to use, however, when number format, task choice, or CRM import rules are unclear.
This tutorial follows a permissioned list submitted by customers who selected Telegram as a service channel. It does not cover scraped or unknown-provenance lists, and it never treats registration or activity as marketing consent.
Before the file: document why the list may be processed
Ask three questions first: where did each number come from, what did the person agree to, and which business action will the check support? An order, event registration, or direct inquiry may provide traceable provenance. A purchased, scraped, or unexplained list should not enter the workflow.
Keep source, collection date, permitted channel, and opt-out status in the CRM. Telegram checking can add platform fields; it cannot repair missing consent.
Step 1: normalize international number format
A list may mix national numbers, spaced international numbers, and 00-prefixed dialing formats. Convert each record from reliable country information, remove spaces, brackets, and hyphens, and avoid guessing a country from length or adding a second code to a number that already has one.
| Source record | Suggested TXT value | Change |
|---|---|---|
| 138 0013 8000 (China) | +8613800138000 | Add +86 and remove separators |
| (415) 555-2671 (US) | +14155552671 | Add +1 and remove punctuation |
| +44 7911 123456 | +447911123456 | Keep the existing code and clean spacing |
These are format examples, not real customer records.
Step 2: create the TXT upload
Use a plain-text editor or export a single clean column. Keep one phone number on each line. Remove names, email addresses, notes, commas, headers, blank lines, and duplicates, then save UTF-8 TXT. AppShai currently accepts TXT only; Excel and CSV cannot be uploaded directly.
+8613800138000
14155552671
447911123456If results must reconnect to CRM records, preserve a separate normalized-number-to-internal-ID mapping inside the company’s controlled environment. The upload itself still contains only phone numbers.
Step 3: choose the right Telegram task
On the AppShai Telegram Number Checker, do not default to the task with the most columns. Choose from the question:
- TG Registration Check: phone number and registration status for channel availability.
- TG Activity Check: may add TG User ID, username, offline time, active days, first and last name, VIP status, and frozen status for a defined time-sensitive workflow.
- TG Age and Gender Check: adds profile-picture URL, age, and gender to activity-related fields. Values may be missing and are not verified identity.
- TG Full Format: may add skin tone, picture type, and number of people in a picture. Select it only after establishing necessity and reviewing sensitive-data implications.
Step 4: run a representative sample
Do not make the first submission the whole database. Start with 20 to 100 representative records covering different countries, raw format patterns, and a few known-status examples. The sample is not a shortcut to an unsupported accuracy claim. It verifies parsing, country-code treatment, service selection, and usable output columns.
If many records fail, pause before scaling. Check encoding, invisible characters, duplicated country codes, and domestic trunk prefixes. A formatting error should not be labeled an unregistered account.
Step 5: download and validate Excel
Preserve one exported copy as read-only evidence and inspect a working copy. Reconcile valid input rows, output rows, exceptions, missing values, number mapping, and whether the columns match the selected task.
Do not translate offline time into real-time presence or VIP into a high-spend customer. Missing age, gender, and picture values remain unknown rather than being filled from names or photos.
Import the result into a CRM safely
Add dated destination fields such as Telegram check service, result, check date, and result version. Merge on the normalized number or protected internal-ID mapping. Do not overwrite provenance, permission, opt-out, order, or support history.
If status changes later, add a new dated observation rather than silently replacing history. The team can then identify which check supported a decision.
Troubleshooting
| Symptom | Check first |
|---|---|
| File cannot be read | True TXT format, UTF-8 encoding, no header or extra columns |
| Many exceptions | Country codes, trunk zeros, duplicate plus signs, spaces, and hidden characters |
| Excel will not match CRM | Use the same normalization rule and prevent spreadsheet scientific notation |
| Unexpected columns | Confirm the selected task and distinguish registration from activity |
Post-task checklist
- Provenance and purpose are recorded.
- TXT has one number per line and no identity notes.
- Country code comes from source-country information.
- The task matches the fields actually needed.
- A representative sample passed.
- Raw TXT and Excel are retained read-only.
- Result, date, and permission remain separate fields.
With these controls, Telegram number checking becomes a repeatable, explainable data workflow rather than a one-off file upload.
