Where does the data come from?
Today every number in Realcaller’s database is a US number, taken from public FTC and FCC complaint data. Reports from Realcaller users can add to it, but as of October 7, 2026 there were none.
Counts on this page were taken on .
How much data is there?
About 813,000 numbers, all from the United States. The counts below were taken on October 7, 2026 and change every week.
813,371
US numbers from FTC and FCC complaints
207,007
of them with a caller label
0
reports from Realcaller users
How many numbers rate as spam?
247 numbers have a base score of 0.70 or higher, the “Known spam” level. 259,531 have 0.40 or higher, the “Suspicious” level and above. A live lookup on a US phone can add up to 0.10, so on your phone more numbers can read as Suspicious or Known spam than these base counts suggest.
What does each country have?
Only the United States has data from a public source. Everywhere else depends on user reports.
| Country | Where the data comes from | What you get today |
|---|---|---|
| United States | FTC Do-Not-Call complaints (about the last 30 days of daily files) and FCC “Unwanted Calls” consumer complaints. Both are public domain. | 813,371 numbers, as of October 7, 2026. |
| Mexico | No seeded data. Coverage can only come from user reports. | No user reports yet, as of October 7, 2026. A Mexican phone still gets the most-reported US numbers in its offline list and can look up any number. |
| United Kingdom | No data. The regulator, the ICO, publishes no offending numbers. User reports only. | Nothing yet. |
| India | No data. No importable dataset exists. User reports only. | Nothing yet. |
| Anywhere else | No data. There is no global dataset. | Any valid number can be looked up. With no data and no reports, the card says “New number, no reports yet”. |
What is a caller label?
A short tag like “Robocall” or “Debt relief” shown on the card when the data has one. The text of a complaint is never shown.
- From FTC complaints
- Robocall, Debt relief, Impostor, Medical & Rx, Warranty, Home improvement, Timeshare, Prize / lottery, Energy / solar, Tech support, Money-making offer, Home security and Charity.
- From user reports
- Robocall, Telemarketer, Scam or Phishing. A label needs at least 2 phones to agree within 90 days. “Other” never becomes a label.
- How many numbers have one
- 207,007 numbers, as of October 7, 2026: Robocall 84.8 thousand, Debt relief 63.2 thousand, Impostor 29.2 thousand, Medical & Rx 15.1 thousand, and the rest across the other labels.
- FCC numbers
- A number from the FCC data carries a label only when it also appears in FTC data.
How is a score worked out?
Every number gets a score from 0 to 1, built from four parts. At 0.70 or more it is Known spam, at 0.40 or more it is Suspicious, and below that it is Low risk.
The four parts
Report volume 50%
How many complaints or reports the number has, up to a cap of 50. Each FTC or FCC complaint counts 1. Each report from a user counts that reporter’s trust weight. Counts fade by 1% every night.
Source trust 20%
How much the source is trusted: FTC 1.0, FCC 0.9, and 0.4 for a number known only from user reports.
Freshness 20%
How recent the last report is. It fades with time (after 30 days it is about a third of its starting value) and never goes below 0.05.
Region match 10%
Full credit when the number’s source country matches your SIM’s country, 30% credit when it does not. The offline list leaves this part out.
Not every report weighs the same
- New phones
- A report from a new phone weighs 0.3.
- Proven reporters
- A phone with 5 or more reports on numbers that reached Known spam rises to 0.6. Weights stay between 0.1 and 1.0, and trust never goes down automatically.
- What one report does
- One report from a new phone on an unknown number gives about 0.38 on a live lookup, which is still Low risk. For a number known only from user reports, Suspicious takes roughly 7 reports from new phones. Known spam takes about 32 from fully trusted phones, or over 100 from new ones.
- Abuse limits
- The same phone cannot report the same number twice in 24 hours, and each phone can send 10 reports a day. If more than 50 phones report one number within an hour, it goes to a manual review queue and its score does not change automatically.
- Old data
- Numbers that score below 0.10 and have had no report for 90 days are archived, not deleted.
What does an explanation line say?
Each number gets up to three lines saying why, strongest first. The card shows the first one, and a number search shows them all.
Lines you can see today
- The source
- “Flagged by FTC” or “Flagged by FCC”.
- How often and how recently
- “Reported 75 times, most recently in the last 30 days”, or “Reported once, more than 30 days ago”.
- Nothing known
- “New number, no reports yet”.
- A different region
- “Source data is from {country}; your region is {country}”. Live lookups only.
- Internal source
- “Internal reputation signal”. No source like this is in use today.
Lines that need Realcaller user reports
- By count
- “Reported by 3 Realcaller users in the last 30 days”, or “Reported by Realcaller users” when only the source is known.
- A spike
- “Recent activity spike, 5 reports in 24h”, for 5 or more reports in a day.
These lines exist in the app, but none can appear yet because there were no user reports as of October 7, 2026.
More on why a number is flaggedWhich sources are allowed?
Only sources Realcaller may legally redistribute. Every number is stored with its source’s country and license type.
- FTC and FCC
- Both are US public domain, so they can be used and shown by name.
- Internal-only sources
- A source we may use but not show can still influence a score. The app then says “Internal reputation signal” instead of naming it. None is in production today.
How often does it update?
The government data is refreshed every week, scores are recomputed every night, and your phone updates its list every day.
Counts on this page were taken on .
- FTC and FCC files
- Pulled again every Monday at 04:30 UTC.
- Scores
- Recomputed every night at 02:00 UTC.
- The list on your phone
- Downloaded once a day, up to 10,000 numbers. Entries not refreshed or seen for 30 days are removed.
- Live lookups
- Use the newest data at the moment of the call.
Join the waitlist
Realcaller is in development and not on Google Play yet. Leave your email and country, and we will use them only for the waitlist.