Europe

SIP Trunk Poland — +48 Termination & DID Numbers

Kraków, Wrocław and Warsaw host some of Europe's largest shared-service and BPO centres, which makes Poland a big source of outbound traffic as well as a destination. Polish numbers are nine digits with no trunk prefix, and the 2023 anti-abuse law requires operators to block spoofed CLIs.

Get Poland rates Talk to NOC

Overview

Routing calls to Poland

Whether you are calling a desk phone in Warsaw or a mobile in Wrocław, Poznań, Gdańsk and Łódź, the call is routed by the longest matching +48 prefix and sent to the best-performing carrier for that range. When a carrier fails, the next one takes over, and the CDR shows exactly which leg carried the call.

UKE sets the Poland numbering plan, and our prefix tables follow it closely. Supported number types: geographic, national, mobile and toll-free. There is no trunk prefix to strip: send 48 followed by the national number as written.

Outbound termination to Poland starts as soon as your balance is topped up. Local DIDs are different: UKE rules usually require address and identity documents, which our team collects and checks before activation.

What you get

What you get in Poland

One account and one balance, with the same SBCs for termination and inbound numbers.

CLI route tier
Caller ID delivered end to end on +48 calls. Use it for sales, support and any traffic where answer rates matter.
Non-CLI route tier
A lower-cost tier where caller ID delivery is not guaranteed. Suitable for internal or transactional traffic that does not depend on the CLI.
Number types
Geographic, National, Mobile, Toll-free. DID availability varies by range and city.
Codecs
G.711a/u and G.729 on every route, G.722 and Opus where the far end supports them. T.38 for fax.
Channels on demand
Concurrent call limits are set per account and raised as your traffic grows. No fixed channel bundles.
Multi-carrier failover
Every +48 prefix is mapped to more than one carrier. Failed attempts move to the next one automatically.

Number formats

How to dial Poland from your PBX

Send E.164 digits. The sample number below shows the format only.

Poland number formats
Format	Example	Notes
International (E.164)	+48 22 123 45 67	How the number is written and stored.
Sent from your PBX	48221234567	E.164 digits with no plus, prefixed by your tech prefix if your account uses one.
With 00 exit code	00 48 22 123 45 67	Accepted on the trunk. We normalise it to E.164.
National format	22 123 45 67	Dialled inside Poland. There is no trunk prefix.

Compliance

Poland rules to know

What applies before your first call or your first DID goes live.

Compliance box

Regulator: UKE
Caller ID: A valid CLI that you are entitled to use is required on CLI routes. Spoofed or unallocated numbers are blocked.
DID KYC: Usually required
Note: Geographic DIDs usually need a local address or proof of presence in the country.
Note: Operators block spoofed CLIs under Poland's 2023 anti-abuse law.

Rules change — our team confirms current requirements before activation.

Use cases

Who uses Poland routes

01
Shared-service centres in Kraków and Wrocław calling customers across Europe
02
Polish-language sales teams calling mobiles on a valid local CLI
03
800 freephone numbers for national banking and utilities

Setup

Start calling Poland in 3 steps

01
Top up $200
Open a prepaid account and add balance by USDT (TRC20), BTC or card.
02
Add your trunk
Whitelist your PBX IP or create digest credentials, then point your outbound route at our SBC.
03
Dial +48
Send 48 + national number in E.164 and check the CDR for your first test call.