Integrations

Struggling with Polish numbers in Twilio? ACTIO is the stable alternative and a ready remedy

Emma Walker 27 July 2026 (updated 8 September 2026) Redakcja ACTIO

A team building on Twilio and needing a Polish caller ID usually wants one of two things: a geographic landline (Warsaw 22, Kraków 12, Poznań 61) or a regular Polish mobile that a customer will call back and reply to by SMS. Twilio publishes its own Poland inventory. It is narrower than that, and the gap is in their CSV and guidelines – not in a rumour.

Polish law requires subscriber identity verification. +48 mobile numbering and domestic SMS routes fall under UKE. That paperwork is easier with an operator entered in the Polish register. You do not have to rewrite the Twilio application to get that numbering: ACTIO connects as the carrier through BYOC.

Twilio Polish number

A Twilio Polish number you can buy, in Twilio’s own Poland materials, is a mobile number with prefix +4873 or +4879. Those two prefixes are the entire Mobile line in the Numbers Summary of Twilio’s Poland regulatory guidelines. The Voice, SMS and Elastic SIP Trunking price pages for Poland list mobile numbers at 4.00 USD per month.

That is not a standard Polish mobile from Orange, Play, Plus or T-Mobile (the everyday 5xx / 6xx / 7xx ranges). It is the mobile inventory Twilio publishes for Poland.

Twilio’s SMS guidelines for Poland also state that Polish mobile operators do not support numeric sender IDs: a non-Polish numeric From is overwritten with a generic alphanumeric sender outside the Twilio platform. If you need a regular Polish mobile with two-way SMS on local carrier routes, that is an ACTIO virtual mobile number, attached to Twilio through BYOC.

Twilio Poland local numbers

Twilio Poland local numbers – geographic landlines with area codes such as 22, 12 or 61 – do not appear in the inventory Twilio publishes.

The guidelines still include a section titled “Poland: Local Numbers”, with KYC that requires an address in the prefix’s locality. That is a requirements template. The Numbers Summary does not list any local prefixes. The pricing CSV has no Poland Local row. The Voice and SIP Trunking price tables for Poland list Mobile, not Local.

Number type	Prefix	In Twilio’s published Poland inventory	Source (checked 8 September 2026)
Mobile	+4873, +4879	Yes in the guidelines Numbers Summary. Voice, SMS and SIP Trunking pages: 4.00 USD/month. The pricing CSV last updated 6 September 2026 has no Poland Mobile row.	guidelines Voice pricing PL SiteNumbersPricing.csv
Toll-free	+48800	Yes. Guidelines list the prefix. CSV: 20.00 USD/month, voice and trunking enabled, SMS not enabled.	guidelines SiteNumbersPricing.csv
Geographic / local	22, 12, 61 and other area codes	Not listed. No Local Prefixes in the Numbers Summary, no Poland Local row in the CSV, no Local type in the Poland price tables.	Same CSV and guidelines; Voice and SIP Trunking PL pages list Mobile only

Checked 8 September 2026. The CSV file Twilio links from its pricing pages was last modified on 6 September 2026. Inventory changes without notice – confirm at the source before you buy.

ACTIO, as a Polish operator in the UKE register, issues geographic +48 numbers and virtual mobiles with two-way SMS. That is the numbering you attach to Twilio when a Warsaw 22 or a regular Polish mobile is what the product actually needs.

Twilio BYOC Poland

Twilio BYOC Poland is the documented way to keep the Twilio application and put Polish numbering on a local carrier. BYOC (Bring Your Own Carrier) is Twilio’s feature: Twilio stays the logic layer (IVR, routing, bots), the carrier you name handles PSTN. Twilio’s Poland Voice page lists BYOC trunking at 0.0040 USD per minute each way.

ACTIO connects as that carrier over SIP Trunk:

Geographic and mobile numbers, plus SMS, run on ACTIO’s Polish infrastructure.
Twilio keeps the application logic you already wrote.
Document verification (REGON / PESEL) and support are in Polish, in the same time zone.

The setup is a SIP account at ACTIO plus a short TwiML snippet that sends the call to Polish servers. Step-by-step screenshots and XML templates: Twilio configuration with ACTIO (in Polish).

If you want to match the network to the product, tell us:

Does the application mainly use voice (VoIP) or bulk SMS?
Which Twilio integration do you use (TwiML Bins or Functions / webhooks)?

We will help you pick the configuration.

FAQ – frequently asked questions about Twilio and Polish numbering

Does Twilio sell Polish landline numbers (22, 12, 61)?

Not in the published inventory. Twilio’s Poland Numbers Summary lists mobile prefixes +4873 and +4879 and toll-free +48800. SiteNumbersPricing.csv (last changed 6 September 2026) has no Poland Local row. Geographic numbers 22, 12, 61 are issued by ACTIO as a UKE-registered operator; you attach them to Twilio through BYOC and SIP. Checked 8 September 2026.

What mobile prefixes does Twilio have in Poland?

Twilio’s Poland guidelines Numbers Summary lists two: +4873 and +4879. Those are not the everyday Orange, Play, Plus or T-Mobile ranges (5xx, 6xx, 7xx). The Voice, SMS and SIP Trunking price pages list a mobile number at 4.00 USD per month. Checked 8 September 2026.

How do I set up Twilio BYOC with a Polish carrier?

Create a BYOC Trunk in Twilio and point PSTN at ACTIO. On the ACTIO side: a SIP account, registrar sip.actio.pl, port 5060 UDP/TCP or 5070 TLS, username 48XXXXXXXXX, CLI in E.164 with 48. In Twilio a short TwiML hands the call to that SIP. Screenshots and XML templates (in Polish). Twilio’s Poland Voice page lists BYOC trunking at 0.0040 USD per minute each way.

What SIP trunk should I use with VAPI to call +48 and have a Polish CLI?

ACTIO SIP Trunk; for a voicebot the SIP Trunk AI line (150 / 129 / 100 PLN net per month). Vapi accepts a custom trunk as byo-sip-trunk. Gateway: sip.actio.pl, number and CLI in E.164 with +48. Twilio’s own Poland inventory will not give you a Warsaw 22.

Do Retell / Vapi need a Polish carrier, or is Twilio enough?

Twilio is enough if its inventory is enough: mobile +4873/+4879 or toll-free +48800, and you accept its SMS rules. If the bot must present a Polish CLI 22/12/61, a regular +48 mobile, or send SMS that Polish networks will not overwrite, you need a Polish carrier on SIP. Vapi and Retell both support bring-your-own SIP. ACTIO is that carrier layer.

Why is SMS from Twilio to Polish networks overwritten / not delivered?

Twilio’s SMS guidelines for Poland state that Polish mobile operators do not support numeric sender IDs: a non-Polish numeric From is overwritten with a generic alphanumeric sender outside the Twilio platform. URL shorteners are prohibited. A long SMS with a full URL is often blocked. ACTIO’s local routes originate in the Polish network.

How much does a minute to a Polish mobile cost on Twilio vs a Polish carrier?

Twilio Voice for Poland (8 September 2026): outbound to mobile 0.2202 USD/min, 0.0715 USD/min from the EEA. ACTIO SIP Trunk, Firma+ price list: 0.15 PLN net/min to mobile, from 0.06 PLN/min with a minute package. Virtual mobile VoIP: 0.08 PLN/min to mobile. Convert at the current rate before comparing one-to-one.

Do I have to rewrite my Twilio application to use ACTIO?

No. Thanks to Twilio's BYOC (Bring Your Own Carrier) feature and SIP from ACTIO you keep your existing application logic. Twilio still handles IVR, routing and bots, while calls and SMS are delivered by ACTIO's Polish infrastructure.

What is BYOC in Twilio?

BYOC (Bring Your Own Carrier) is a Twilio feature that lets you nominate your own telecommunications carrier to handle voice traffic. Twilio remains the application logic layer, while numbering and call delivery are handled by the chosen carrier – here, ACTIO.

Why do SMS messages from foreign gateways fail to reach Polish recipients?

Polish carriers use anti-spoofing filters that block SMS traffic originating from foreign systems. Sending over ACTIO's local carrier routes avoids the problem, because the message reaches the recipient from within the Polish network.

Can I get a Polish mobile number without a SIM card?

Yes. ACTIO offers virtual mobile numbers – a Polish number working over VoIP, without a physical SIM card, compliant with Polish law and with no risk of a block on formal grounds.

How long does the Twilio to ACTIO integration take?

Connecting the systems takes a matter of minutes. The setup consists of linking your Twilio account with a SIP account at ACTIO and configuring a short TwiML snippet that routes traffic to Polish servers.

What about verification and UKE compliance?

ACTIO is a Polish telecommunications operator, so verification of company data (REGON/PESEL) happens immediately and technical support works in Polish. There are none of the weeks-long document registration waits typical of global platforms.

What is a Twilio Polish number?

In Twilio’s own Poland materials, a Twilio Polish number you can buy is a mobile number with prefix +4873 or +4879, listed at 4.00 USD per month on the Voice, SMS and SIP Trunking price pages, or a toll-free +48800. It is not a standard Polish mobile from Orange, Play, Plus or T-Mobile, and it is not a geographic landline. Checked 8 September 2026 against Twilio’s regulatory guidelines and pricing pages.

Does Twilio sell Poland local numbers (geographic, for example Warsaw 22)?

Not in the inventory Twilio publishes. The Poland Numbers Summary lists mobile prefixes +4873 and +4879 and toll-free +48800. The SiteNumbersPricing.csv file has no Poland Local row. The Voice and SIP Trunking price tables for Poland list Mobile, not Local. Checked 8 September 2026.

What is Twilio BYOC Poland?

BYOC (Bring Your Own Carrier) keeps Twilio as the application layer for IVR, routing and bots, while a local carrier handles the PSTN. Twilio’s Poland Voice page lists BYOC trunking at 0.0040 USD per minute each way. ACTIO connects as that carrier over SIP, so the Twilio code stays in place and numbering plus SMS use Polish infrastructure.