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Numbers Online

Looks up any phone number for its carrier, location, community spam risk score and verified profile.

Free plan · From $9 onceActively maintained

VoiceFor developersFree tier
numbers.online ↗
Open numbers.onlineAlternativesSet it up for my teamIs Numbers Online yours? Claim the card →
At a glanceswept Oct 14, 2026

≈ 3visits/mo

Little sign of use · estimate, read Oct 14, 2026

For
People screening unknown callers, businesses verifying their numbers, and developers adding caller context to phone apps.
Price
Free plan · From $9 oncepricing page, read Oct 20, 2026
Activity
Actively maintainedsite updated 8 days ago
Company
since 2025per their site
Runs as
API
Used for
  • Look up who and what an unknown number is
  • Check a number's spam risk score before answering
  • Verify a business number so customers recognise its calls
read off numbers.online on Oct 20, 2026
Worth knowingcomputed from what we read · each with its source
Pricingpricing page, read Oct 20, 2026

Free plan · From $9 once

pricing page

The companyeach fact with its source · read Oct 20, 2026
  • Founded2025per their site ↗
  • Domain since2016domain registered
  • HeadquartersSingapore, SGper their site
Your datawhat they publish, each line with its page · read Oct 20, 2026

These are Numbers Online's own statements, read from its pages. We did not audit them. A line that is missing was not found on the pages we read; it does not mean the practice is absent.

How a program reaches itfound, not claimed · read Oct 20, 2026
  • MCP serveronline.numbers/numbers-onlineverified in the MCP registry
  • Stateanswers, 4 toolschecked 2026-10-20
  • Address to connectnumbers.online/api/v1/mcp
  • API docsnumbers.online/developersthe vendor's page ↗

MCP server details →

This card as JSON, for your agent →

Each line is something a program found when it went looking: the registry entry, the server's own answer, a spec that parses. A missing line means we did not find it, not that it does not exist.

Alternatives in Voiceby use, among tools still maintained

Figure and bar: visits/mo, estimate · year: online since

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Three tools from the Atlas for the job you describe, each with what fits and what does not.

From people who use itnot part of the reading

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Questions this page answers
  • What is Numbers Online?

    Looks up any phone number for its carrier, location, community spam risk score and verified profile. It is listed in the Atlas under Voice.

  • Who is Numbers Online for?

    People screening unknown callers, businesses verifying their numbers, and developers adding caller context to phone apps.

  • How much does Numbers Online cost?

    Numbers Online has a free plan; paid plans start at $9 once, per its pricing page on 2026-10-20.

  • Is Numbers Online free?

    Yes, Numbers Online has a free plan, per its pricing page on 2026-10-20.

  • Do people use Numbers Online?

    Little sign of use: ≈ 3 visits/mo · estimate, 2026-10.

  • Is Numbers Online still maintained?

    Actively maintained: site updated 8 days ago.

  • Is Numbers Online safe?

    We do not audit vendors. What Numbers Online publishes, read 2026-10-20: GDPR, CCPA stated on its privacy policy.

  • How do I cancel Numbers Online?

    In its own words (terms of service, 2026-10-20): “Business verification is an auto-renewing annual subscription of USD 29/year, and you can cancel anytime from your dashboard.”

  • What are alternatives to Numbers Online?

    In Voice, by use: Goodcall, quackr, Smallest.ai, Mitra, PickMyCall, CallClerk.

How we read a tool

No votes, no reviews, no vendor claims. Every week a crawler reads each tool's own site and a few public registries, and the words on the card are bands over what it read.

  • Use: visits to the site (estimated), installs from npm and PyPI, presence in Chrome's usage report.
  • Activity: the newest release on GitHub, npm or PyPI; the newest dated page on the site; open roles on a public jobs board.
  • Price: the vendor's own pricing page, read with the date. A figure is printed only when it is on that page.
  • The line and the use cases are written by us from the homepage, one tool at a time, and refused when they repeat the vendor's marketing.

How AI assistants read each site — the reading vendors ask us about — is on each tool's own visibility page.

How we read every tool → · By INITE Atlas Desk