May 11, 2026 · 2 min read

Viber 号码检测工具 — 通过 API 验证 Viber 账号注册

批量检测 Viber 是否注册：上传 E.164 文件，task_type viber，轮询 /v1/gettasks。官方文档见 docs.checknumber.ai。

Verify if a phone number is registered on Viber.

Viber is a secure messaging platform used by millions worldwide, particularly in Eastern Europe, Asia, and the Middle East. Verifying Viber registration is critical for businesses targeting these regions.

Why Verify Viber Number Registration?

Regional Marketing: Viber has strong adoption in specific geographic markets
Channel Diversification: Verify where your customers prefer to communicate
Database Quality: Ensure contact lists include active Viber users
International Outreach: Essential for B2B communication in markets where Viber dominates

Viber bulk number checker API

Official documentation: Viber Bulk CheckNumber API.

CheckNumber verifies phone numbers in batch: upload a .txt or .csv file (one E.164 number per line), poll task status, then download the result file.

Submit task

POST https://api.checknumber.ai/v1/tasks

Parameter	Description
`file`	One phone number per line, E.164 format
`task_type`	`viber` — Viber registration check

curl --location 'https://api.checknumber.ai/v1/tasks' \
--header 'X-API-Key: API-KEY' \
--form 'file=@"./numbers.txt"' \
--form 'task_type="viber"'

Check task status

POST https://api.checknumber.ai/v1/gettasks

curl --location 'https://api.checknumber.ai/v1/gettasks' \
--header 'X-API-Key: API-KEY' \
--form 'task_id="TASK_ID"'

When status is exported, download results from result_url.

Result columns

Field	Description	Example
`Number`	E.164 phone number	+41798284651
`viber`	Registered on Viber	yes, no

Task payload fields

Field	Description
`created_at`	Task creation time
`updated_at`	Last status update
`task_id`	Task identifier
`status`	`pending`, `processing`, or `exported`
`total`	Numbers in the file
`success`	Completed rows
`failure`	Failed rows
`result_url`	Download link when `exported`