OmertaCall guidesNumber reputation
Inter-carrier score explained
Understand what the Inter-carrier score measures, its components and the limits of its evidence.
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Inter-carrier score explained
The Inter-carrier score describes carrier-level reputation of your number in its local market, based on how its calls perform across carrier networks.
The 0–100 score uses your call traffic, independently of app labels; it is not carrier-issued.
Score bands
OmertaCall shows the active component weights, score bands and safe limits where that configuration is available. The general guidance still applies when a configuration is unavailable or there is not yet enough data.
- Good — the number’s calls perform well across carrier networks.
- Watch — slow down and review the score breakdown.
- At risk — reduce risk first, then ask each source to review its evidence.
- Not enough data — there is not yet enough call traffic to produce a score.
What the score includes
- Answer behaviour: Answer rate and whether calls reach people.
- Engagement: Conversation duration and very short answered calls.
- Callbacks: Whether recipients successfully call the number back.
- Outside sources: Risk evidence from caller-ID databases and apps.
- Number hygiene: Volume, repeated dialling and unusual calling patterns.
Next, review Deep dive: What carriers look at and Deep dive: Honest limits of number reputation
Frequently asked questions
Short answers to common reputation questions.
Why does a real business get labelled?
Legitimate calls can look unwanted when recipients do not expect them, many calls go unanswered, someone is redialled, or recipients report the number. Review the behaviour and named evidence; business identity alone does not prevent labels.
Why do some people see a warning and others do not?
People use different carriers, devices and caller-ID apps. Each source has its own data, and only app users see that app’s warning. Carrier decisions are separate and not fully public.
For the full picture, start with How to keep your business numbers healthy.
Put insight into practice
Understand your number reputation.
Review your number-health evidence or talk through your business calling needs with our team.