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DID numbers · IT +39

Italy DID Numbers for inbound and CLI

Local numbers in Italy that ring your SIP endpoint and double as verified outbound caller IDs. Order, document and route them from the portal.

Europe+39
Open accountTalk to routing
key_facts · it
country_code
+39 · IT
national_len
6–11 digits; fixed numbers keep their leading 0
mobile
3xx (e.g. 320–339, 340–349, 350–353, 360–368, 370–393)
fixed
06 Rome · 02 Milan · 011 Turin
regulator
AGCOM (communications) and the Garante (data protection)
timezone
CET (UTC+1), CEST (UTC+2) in summer.
reviewed
2026-10-20

Overview

DID numbers to Italy

A DID (direct inward dialing) number gives you a real Italy number on your SIP trunk. It receives calls from local customers and, because you hold it, it is also the strongest caller ID you can present on outbound traffic to Italy.

Italian geographic numbers in all main cities are available with proof of address in the district, plus 800 freephone numbers for inbound service.

Italy has an active outsourced customer-care sector and strict enforcement against aggressive telemarketing. Calls presenting unregistered or unidentifiable numbers are a recurring enforcement target.

Number formats
TypeE.164
Mobile+39 312 345 6789312 345 6789
Fixed+39 06 1234 567806 1234 5678
Toll-free+39 800 123 456800 123 456 (domestic only)

+39 followed by a 6–11 digit number; geographic numbers keep the leading 0, mobiles start with 3.

Regulation · AGCOM

Caller ID rules in Italy

A practical summary for operations teams, not legal advice. Confirm current requirements with counsel before you launch.

Last reviewed

Caller-ID presentation

AGCOM’s anti-spoofing rules require operators to block calls from abroad that present Italian fixed numbers, and from November 2025 Italian mobile numbers, unless the mobile caller is genuinely roaming. The Registro Pubblico delle Opposizioni covers fixed and mobile numbers.

Registro Pubblico delle Opposizioni

Consumers can register landlines and mobiles on the public opt-out register. Marketing calls must be scrubbed against it.

Identifiable CLI

Marketing calls must present an identifiable number, and AGCOM has introduced dedicated numbering for telemarketing.

Consent and the Garante

The Garante enforces consent requirements for marketing calls and has issued significant fines for calls without valid consent.

Calling hours

No single statutory window, but the telemarketing code of conduct and complaints practice favour weekday daytime hours.

Dialing & setup

Dialing Italy correctly

  • Keep the leading 0 on fixed numbers: 06 1234 5678 becomes +39 06 1234 5678. Italy is one of the few countries where the 0 stays.
  • Mobiles start with 3 and have no leading 0: +39 312 345 6789.
  • Check the RPO before marketing calls; since 2022 it covers mobile numbers and cancels prior consents when someone registers.
  • August (Ferragosto) sees a sharp drop in B2B answer rates.

Caller ID best practice

Present an Italian number assigned to you that is recognisable and callable, and keep CLIs consistent across campaigns.

Troubleshooting

Common SIP errors on Italy calls

  • 404

    Not Found

    The leading 0 of a fixed number was dropped. +39 6… is not valid; +39 06… is.

  • 403

    Forbidden

    An Italian CLI on international-origin traffic was blocked under AGCOM’s anti-spoofing rules.

  • 484

    Address Incomplete

    A short number, often from a fixed-length validator.

Quality guidance

What healthy Italy traffic looks like

Italian routes are stable. Most quality issues on new Italian campaigns turn out to be number formatting, specifically a dropped leading 0.

35–55%

ASR

2–4min

ACD

2–5s

PDD

Typical ranges on healthy routes, as guidance only. Results depend on your lists, CLI reputation and campaign type. Live per-destination stats are in your portal.

Setup

Connect your DID number for Italy

Replace the placeholders in angle brackets with the values from your portal. Full trunk templates for each platform are in the portal after sign-up.

Asterisk inbound route+39
; extensions.conf — inbound Italy DID from CLIRoutes
[from-clirroutes]
exten => +390612345678,1,NoOp(Inbound Italy DID)
 same => n,Set(CALLERID(name)=IT support line)
 same => n,Goto(ivr-main,s,1)

; Present the same DID on outbound Italy calls once it is verified.

FAQ

Italy DID numbers: FAQ

Can’t find what you need? Our routing team answers within the hour, around the clock.

Do I need to scrub against the Registro delle Opposizioni?

Yes, for marketing calls. The register covers landlines and mobiles, and scrubbing is a condition of running marketing campaigns on our Italian routes.

What answer rates can I expect in Italy?

They depend on the CLI and on the campaign. Italian numbers you hold perform best. Your portal shows live ASR and ACD for Italian destinations so you can compare.

Why must I keep the 0 in Italian numbers?

Italy integrated the 0 into fixed numbers in 1998, so it is part of the number, not a trunk prefix. Dropping it produces an invalid number.

What changed with AGCOM’s anti-spoofing rules?

Operators now block international-origin calls presenting Italian numbers unless they are legitimate, starting with fixed numbers and extending to mobiles in November 2025. Italian CLIs must be used on properly originated traffic.

Does the RPO cover mobile numbers?

Yes, since July 2022. Registering also revokes consents given earlier, so check the register before every campaign even if you hold consent.

What documents do I need for Italy DIDs?

It depends on the number type. Many geographic numbers in Italy require proof of a local address or business registration; toll-free and non-geographic numbers usually need less. The portal lists requirements per number type before you order.

Other products in Italy

Nearby countries

Related guides

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