Phone numbers · CZ
Czech Republic phone number format
Czech Republic numbers use the country code +420. A mobile number looks like 601 123 456 at home and +420601123456 in international E.164 format.
| Type | Example (national) | International | E.164 | Digits |
|---|---|---|---|---|
| Mobile | 601 123 456 | +420 601 123 456 | +420601123456 | 9 |
| Landline | 212 345 678 | +420 212 345 678 | +420212345678 | 9 |
| Toll-free | 800 123 456 | +420 800 123 456 | +420800123456 | 9 |
| VoIP | 910 123 456 | +420 910 123 456 | +420910123456 | 9 |
| Premium-rate | 900 123 456 | +420 900 123 456 | +420900123456 | 9 |
| Shared-cost | 811 234 567 | +420 811 234 567 | +420811234567 | 9 |
| Personal (forwarding) number | 700 123 456 | +420 700 123 456 | +420700123456 | 9 |
| Company (UAN) number | 972 123 456 | +420 972 123 456 | +420972123456 | 9 |
- Country calling code
- +420
- National (trunk) prefix
- None
- International call prefix
- 00
- Separate VoIP range
- Yes
- Time zones
- Europe/Prague
Validate in code
Check a Czech Republic number.
Send the number as typed plus country: "CZ". You get it back in E.164 with its line type, ready to store.
curl https://veqen-app.com/v1/phone/check \
-H "Authorization: Bearer $VEQEN_API_KEY" \
-H "Content-Type: application/json" \
-d '{"country": "CZ", "phone": "601 123 456"}'import os, requests
r = requests.post(
"https://veqen-app.com/v1/phone/check",
headers={"Authorization": f"Bearer {os.environ['VEQEN_API_KEY']}"},
json={"country": "CZ", "phone": "601 123 456"},
timeout=10,
)
result = r.json()
print(result["risk"]["verdict"], result["risk"]["reasons"])const res = await fetch("https://veqen-app.com/v1/phone/check", {
method: "POST",
headers: {
Authorization: `Bearer ${process.env.VEQEN_API_KEY}`,
"Content-Type": "application/json",
},
body: JSON.stringify({"country": "CZ", "phone": "601 123 456"}),
});
const result = await res.json();
console.log(result.risk.verdict, result.risk.reasons);Questions
Czech Republic numbers
What is the country code for Czech Republic?
+420. Dial it after your international access code, or use +420 from a mobile phone.
How do I format a Czech Republic phone number in E.164?
Add +420 in front of the number with no spaces, e.g. +420601123456.
How many digits is a Czech Republic mobile number?
9 digits after the country code.
Does Czech Republic have VoIP phone numbers?
Yes, it has a dedicated VoIP range, and Veqen flags numbers in it.