Identify callers
Turn unknown inbound numbers into named professionals with a current role and company before you call back.
Caller ID for B2B
Reverse phone lookup API for professional identities
Send a verified US phone number and retrieve the professional behind it: full profile, current role, company, and LinkedIn URL, in one request.
Trusted by the best GTM teams
Built for identity recovery
A phone number alone is a dead end. Recover the person, the role, and the company behind it.
Repair phone-only records
Recover full identities from CRM rows where only a phone number survived: imports, form fills, and legacy data.
Match with confidence
Lookups resolve against a LinkedIn-based professional dataset, so matches come back as real, current profiles.
Chain onwards
Use the returned LinkedIn URL to trigger email enrichment, company enrichment, and CRM updates downstream.
What teams build with Reverse Phone Lookup
Data Resolution & MatchingConnect phone numbers, emails, and LinkedIn URLs into clean, deduplicated contact records.B2B Profile EnrichmentTurn phone-only leads into complete professional profiles ready for scoring and outreach.Decision Makers IdentificationKnow instantly when an inbound call comes from a decision maker at a target account.
From number to named contact
One endpoint, POST /v2/enrichment/phone-to-person, resolves a phone number into the professional behind it.
Send the number
Pass a single verified US phone number. That is the entire request body.
Get the person
Receive the full profile: name, headline, current role, company, location, work history, and LinkedIn URL.
Sync and act
Update the CRM record, route the lead to the right owner, and chain the profile into your enrichment workflows.
The endpoint
A US phone number in, the professional out
The reverse phone lookup API takes a US phone number and returns the professional behind it as a full profile: name, headline, current role and company, LinkedIn URL, experiences and education. Coverage is the United States only, and phone endpoints come with every paid plan, from Start.
- Chain it with Email Enrichment API Company Enrichment API
curl -X POST https://api.blitz-api.ai/v2/enrichment/phone-to-person \
-H "x-api-key: YOUR_API_KEY" \
-H "Content-Type: application/json" \
-d '{"phone":"+14155551234"}'from blitz_api import BlitzAPI
client = BlitzAPI() # reads BLITZ_API_KEY
by_phone = client.enrichment.phone_to_person(phone="+14155551234")
if by_phone.found:
print(by_phone.person.full_name)import { BlitzAPI } from "blitz-api-js";
const client = new BlitzAPI(); // reads BLITZ_API_KEY
const byPhone = await client.enrichment.phone_to_person({ phone: "+14155551234" });
if (byPhone.found) console.log(byPhone.person.full_name);200 OK
foundperson.full_nameperson.headlineperson.linkedin_urlRelated APIs
Phone Enrichment API
Find B2B direct phone numbers for professional contacts in the US. Enrich prospect lists, improve CRM data, and power multichannel sales workflows.
Profile Enrichment API
Turn one LinkedIn profile URL into the complete person record: typed JSON with headline, location, each role and its employer identifiers, education and skills.
Reverse Email Lookup API
Turn a verified work email into a complete professional profile: name, current role, company, and LinkedIn URL. Built for product signups and inbound leads.
Frequently asked questions
What is a reverse phone lookup API for B2B?
An API that takes a phone number and returns who is behind it. Consumer services answer with a name and an address; the B2B version answers with a work identity. BlitzAPI's POST /v2/enrichment/phone-to-person resolves a US mobile or direct line to the professional's profile, with name, current role and company, and LinkedIn URL, the way a caller ID would for a sales team.
What coverage does Reverse Phone Lookup have?
Coverage is currently limited to the United States. For contacts outside the US, start from an email or LinkedIn URL with Reverse Email Lookup or Profile Enrichment instead.
Is it available on the trial?
No. Phone-based endpoints come with every paid plan, from Start. Every other identity endpoint, including Reverse Email Lookup, is available to try with your 1,000 free records.
What does the lookup return for a phone number?
The full person object: name, headline, current role and company, seniority, location, LinkedIn URL, work history, and education, the same profile shape as Reverse Email Lookup.
Is this a consumer reverse phone lookup?
No. It resolves the US phone numbers of professionals, mobile or direct line, to professional profiles, for B2B workflows such as identifying an inbound caller, completing CRM records or qualifying a lead.
