CZ

Reverse Phone Lookup in the Czech Republic — Recent Community Reports

Check unknown Czech numbers with recent reports (Prague, Brno, Ostrava, Plzeň) and share your experience.

Unknown calls in the Czech Republic

Unsure about a Czech number? Explore concise community notes to judge calls and texts. In Praha (Prague), Brno, Ostrava and Plzeň you’ll encounter both legitimate callbacks (deliveries, banking, appointments) and waves of robocalls or phishing. Geographic prefixes and mobile ranges (e.g., 2x/3xx/5xx, 60x/77x) are useful context but not proof of origin due to portability and VoIP — treat them as helpful hints, not certainty.

Verification: return calls via the official number on the company website/app, check in‑app notices, and never share one‑time codes by phone. Use device/carrier blocking for repeat issues, and leave a short, factual note here so others can benefit.

420737148001 Telemarketing

Nabízí prověření vašich pojistných smluv.

420229010857 Telemarketing

Obchodní nabídka na burze. Prý jsem se někde registroval. Nemám o tom žádné informace. Zablokováno.

420371524501 Company KALKULACE ENERGII

Výpočet energie

420371524501 Silent Call

Jenom krátké zazvonění.

420792514803 Other

Zdravím, mami a tati, můj telefon je poškozený...

420251713326 Telemarketing

Přichází s tarifními návrhy, doporučuji blokovat

420734234153 Advertising

Přichází s návrhem ochutnávky vína přímo u vás

420734234153 Harassment Call

Jedná se o nepříjemnost.

420734234153 Harassment Call

Stále obtěžují

420734234153 Harassment Call

Nevítaná otrava z pojišťovny nebo jiného zdroje

420734234153 Telemarketing Telemarketing

Telemarketing bez předchozí dohody – nabídka ochutnávky vína.

420382753768 Energetické centrum

Centrum energetiky ... :(

420382753891 Telemarketing

Porovnává se zde energie – nedoporučuji

420735950091 Advertising Pojištění šmejdi (Podvod)

Jedná se o šmejdy, jež se snaží vypovědět vaši pojistku a uzavřít novou kvůli provizi. Nedoporučuji je vpustit; jsou neodbytní.

420733236132 Other Hanso84 (Oszustwo)

Uživatel Hanso84 z Rouchovan domlouvá eskort na amatérských akcích, nedodržuje domluvené termíny, po neozvání požaduje změnu termínu, chová se neodbytně a urážlivě, dokonce hrozí. Doporučuji okamžité zablokování, je nebezpečný.

420770129545 Spam

Telefon upozorňuje na možný spam

420770129545 Silent Call

Jednalo se o humus, byl tam jen šepot a pak konec

Trending Phone Numbers

420233235023 20 reports
420770319331 18 reports
420371658673 18 reports
420790421108 17 reports
420246045590 17 reports
420771277351 16 reports
420770328563 16 reports
420720720126 16 reports
420234102501 16 reports
420220190500 16 reports
420790422186 15 reports
420777680617 15 reports
420734754900 15 reports
420601531933 15 reports
420588003999 15 reports
420417770320 15 reports
420388901170 15 reports
420378600959 15 reports
420371658499 15 reports
420800800773 14 reports
420790422180 14 reports
420778438867 14 reports
420771520530 14 reports
420538880309 14 reports
420516777941 14 reports
420388901161 14 reports
420378600929 14 reports
420378600247 14 reports
420371657882 14 reports
420371653327 14 reports
420234094702 14 reports
420790422184 13 reports
420777365994 13 reports
420774502678 13 reports
420736410593 13 reports
420729930381 13 reports
420726121706 13 reports
420725442605 13 reports
420608994908 13 reports
420378603797 13 reports
420378603729 13 reports
420378601910 13 reports
420378600262 13 reports
420371658697 13 reports
420371653324 13 reports
420288288178 13 reports
420233235021 13 reports
420226216768 13 reports
420221344247 13 reports
420221344217 13 reports
420778579107 12 reports
420778538746 12 reports
420778417127 12 reports
420770334297 12 reports
420731258366 12 reports
420558271400 12 reports
420378603757 12 reports
420371650200 12 reports
420228886498 12 reports
420210012918 12 reports
420790422182 11 reports
420778710285 11 reports
420778417214 11 reports
420774399245 11 reports
420774050517 11 reports
420725915252 11 reports
420720013023 11 reports
420607765849 11 reports
420388901999 11 reports
420378603727 11 reports
420246045296 11 reports
420220305109 11 reports
420778754128 10 reports
420777557346 10 reports
420773756142 10 reports
420737430804 10 reports
420737162469 10 reports
420736410781 10 reports
420735997707 10 reports
420735203175 10 reports

FAQ — Czechia

How to verify callers in Czechia?

Use the official number listed on the company site/app and check in‑app messages; avoid calling back the unknown number.

Do prefixes prove location?

No. Portability/VoIP make geographic/mobile ranges unreliable as proof of origin.

Common patterns?

Delivery updates, bank callbacks, 2FA codes; robocalls, parcel/account phishing and scripted sales.

What to include in a report?

Caller type, purpose, date/time, and cues that guided your decision.

Popular area codes

Most-reported area codes in Czechia. View all area codes at the bottom.
2 31 35 37 38 41 46 48 49 51 55 56 57 58
Browse all area codes