How Much Does Twilio Lookup Cost?

Twilio Lookup is a phone number intelligence API that returns carrier data, line type, and fraud risk signals for any phone number you query. Pricing is per lookup and varies by the data package requested, from basic carrier information to full identity match. For businesses using Lookup to gate verification flows, qualify leads, or block fraud, understanding the cost-per-query and what each tier returns is essential for making the right trade-off.

Carrier Lookup Pricing

The basic carrier lookup on Twilio returns the mobile network operator, line type (mobile, landline, or VoIP), and porting status for a given number. This data package costs $0.005 per lookup as of 2026, making it one of the lowest-cost Twilio API calls. For businesses screening inbound numbers to determine SMS deliverability before sending, a carrier lookup at $0.005 is a straightforward investment when the alternative is a failed SMS delivery at $0.0079 to an undeliverable number. The carrier data is particularly valuable for international numbers, where line type detection helps identify whether a number can receive SMS at all.

Line Type Intelligence Pricing

The Line Type Intelligence package returns more detailed classification beyond basic mobile or landline, including sub-type data that distinguishes VoIP from fixed-line, and within VoIP can flag numbers commonly associated with virtual number services used for fraud. This package costs $0.01 per lookup. Products that use phone number as a verification factor, such as account creation flows, benefit significantly from line type intelligence, as blocking VoIP numbers from self-service registration reduces fraudulent account creation rates by 30 to 60 percent in most consumer applications. The $0.01 cost per lookup is almost always below the cost of a fraudulent account when amortised across volume.

Identity Match Pricing

Twilio's Identity Match package cross-references the submitted phone number against name and address data to verify that the identity claimed by a user matches the phone number they provided. This data package costs $0.04 per lookup, four times the line type package. Identity match is most valuable for regulated industries such as financial services, insurance, and healthcare, where verifying that the phone number belongs to the customer of record is a compliance requirement rather than just a fraud signal. The $0.04 rate is competitive with standalone identity verification services, particularly for businesses already built on Twilio where the integration overhead is minimal.

When Lookup Costs Are Justified

Lookup costs justify themselves when the cost of a failed SMS, a fraudulent account, or a compliance violation exceeds the $0.005 to $0.04 per query cost of the check. For SMS campaigns, running a carrier lookup before sending reduces wasted sends to landlines and disconnected numbers, which directly reduces your messaging bill. For authentication flows, line type intelligence reduces the volume of verification attempts sent to VoIP burner numbers used for fake account creation. The break-even calculation is straightforward: if even 2 percent of your phone numbers are invalid and you are sending at $0.0109 per SMS including surcharges, a $0.005 carrier lookup pays for itself across any volume above a few hundred messages per month.

Conclusion

The right Lookup tier depends on whether you are optimising for deliverability, fraud reduction, or identity compliance, and each use case has a different cost-benefit profile. Book a free analysis with our team and we will identify exactly which Lookup packages make financial sense for your specific use case.