NumbersOnline
Sign inGet verified
🇨🇿 Czechia · +420

Reported numbers in Czechia

Phone numbers with spam or scam signals observed in Czechia, aggregated from independent complaint sources and the Numbers Online community. Everything on this page is a supplementary signal — advisory, not a verdict — and personal numbers are never listed.

← All countries
34
Numbers with signals
120
Reports across sources
9
Active last 30 days
1d ago
Latest activity
Recently active numbers
24 shown
1d ago
+42006072670155
Reported activity
25 reports1 src
Low
2d ago
+420420420
Reported activity
7 reports1 src
Very risky
11d ago
+42042540
Reported activity
1 report1 src
Very risky
11d ago
+42081401
Reported activity
2 reports1 src
Very risky
11d ago
+42081301
Reported activity
2 reports1 src
Very risky
11d ago
+42081201
Reported activity
2 reports1 src
Very risky
11d ago
+4203590865
Reported activity
2 reports1 src
Very risky
11d ago
+4201120263
Reported activity
2 reports1 src
Very risky
23d ago
+420771522553
Reported activity
1 report1 src
Low
3mo ago
+420723352297
Phishing / smishing
1 report1 src
Very risky
4mo ago
+420212255930
Phishing / smishing
1 report1 src
Very risky
5mo ago
+420728036527
Reported activity
1 report1 src
Very risky
5mo ago
+420774480870
Reported activity
1 report1 src
Low
4/14/2021
+420735558068
Reported activity
45 reports1 src
Very risky
3/4/2020
+420735802410
Reported activity
1 report1 src
Very risky
3/4/2020
+420790660690
Reported activity
1 report1 src
Very risky
3/4/2020
+420792600007
Reported activity
1 report1 src
Very risky
3/4/2020
+420910049890
Reported activity
1 report1 src
Very risky
3/4/2020
+420910041485
Reported activity
1 report1 src
Very risky
3/4/2020
+420910044128
Reported activity
1 report1 src
Very risky
3/4/2020
+420910049320
Reported activity
1 report1 src
Very risky
3/4/2020
+420770719855
Reported activity
1 report1 src
Very risky
3/4/2020
+420797600000
Reported activity
1 report1 src
Very risky
3/4/2020
+420798858280
Reported activity
1 report1 src
Very risky
Freshness reflects when a source last observed activity — never when we crawled it. Full history and scoring on each number’s lookup page.
What gets reported
Reported activity31
Phishing / smishing2
Ping call1
Most-reported prefixes
+420 7927+420 9104+420 7352+420 7982+420 0601+420 1121+420 2121+420 2231
Number ranges where signal numbers cluster. A prefix itself is never bad — plenty of legitimate numbers share it.
Monthly data report
Phone spam trends · October 2026 →
Country movement, top categories and new number-range patterns.
Aggregated from independent complaint feeds and community reports; refreshed on a schedule (last 2h ago). These are supplementary signals to help you decide whether to answer — advisory, not a verdict on any number or its owner. Got a call? Report it · listed in error? Request removal.
Other countries
United States3.2MPoland129.8KGermany36.3KLithuania25.9KUnited Kingdom19KRomania5,082Italy4,590Spain4,571Denmark3,790Portugal3,438