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Carrier and Community Spam Risk for Any Phone Number

Look up any phone number for its country, carrier, and line type, plus a community-powered risk score that tells you whether it is reported as spam or scam.

AstrinaEditorial July 12, 2026 3 min read Updated August 28, 2026 EN RU UK

An unknown number is calling. Before you pick up, wouldn't it help to know who is behind it, and whether other people have flagged it? Astrina's phone number intelligence answers both questions in a single lookup.

What a lookup tells you

Give Astrina a phone number and you get back the technical facts that identify it, along with a community verdict on how trustworthy it is. Every lookup returns:

  • Country and its ISO code
  • Operator / carrier the number belongs to
  • Line type so you can tell a mobile from a landline or other line
  • A risk score and a plain-language verdict — is this number reported as spam or scam?

The first three tell you what the number is. The risk score tells you what people have experienced with it.

Where the risk signal comes from

The risk score isn't a black box. It is powered by community reviews of phone-number subjects on Astrina — real reports left by the community about that number. Each report is positive, neutral, or negative, and Astrina weighs how many there are and how recent they are.

Recency matters because a number's reputation changes. Astrina looks at activity over the last 30 and 90 days, so a number that started getting flagged this week surfaces quickly, and stale reports don't drown out what is happening now. The more the community contributes, the sharper the signal becomes for everyone.

The premium risk report

The basic identity and verdict give you an immediate read. When you want the full picture behind a number — the detailed risk breakdown — you can unlock a premium risk report for a one-time €0.49. If you are a Pro member, it is included for free.

One-time unlock, no subscription required: €0.49 per premium risk report, or free with Pro.

Public phone reputation pages

Every number Astrina knows about also has a public phone reputation page you can browse. These pages collect the community's reports in one place, so you can read the context behind a verdict — not just the score, but the pattern of experiences that produced it. They are handy to share, to link to, and to check when you want the human story behind a flag.

Built into the API

If you want to check numbers programmatically — screening sign-ups, enriching a CRM, or filtering inbound calls — the same intelligence is available through the API. One request returns both the identity fields and a structured risk object.

GET /api/v1/phone?number=+1...

The response includes:

  • number, country, iso, operator, and line_type
  • A risk object with score, verdict, confidence, and report counts

The confidence field is worth watching: it tells you how much community data stands behind the verdict, so you can decide how strictly to act on any single lookup.

How to get started

  1. Take the number you want to check, in international format (for example, +1...).
  2. Call the endpoint:
    GET /api/v1/phone?number=+1...
  3. Read country, iso, operator, and line_type to identify the number.
  4. Read the risk object — score, verdict, confidence, and the report counts — to judge whether it is safe.
  5. Want the full breakdown? Unlock a premium risk report for €0.49, or browse the number's public phone reputation page.

Whether you check one number by hand or thousands through the API, you get the same thing: who owns the line, and what the community has to say about it.

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