Know Every Number
Before You Message
Validate phones, detect carriers, assess reachability, and flag fraud risk with a single Number Lookup API—built for verification and messaging quality.
200+
Countries
< 200ms
Latency
Bulk
Lookups
24/7
Support
HLR
Live status
Carrier
Detection
Fraud
Signals
Complete Number Intelligence
Validate, enrich, and score phone numbers before every critical message or verification.
HLR Lookup
Query Home Location Register data to validate numbers and understand live network status.
Carrier Detection
Identify the current network operator for accurate routing and cost optimization.
Number Type
Classify mobile, landline, VOIP, premium, and toll-free numbers before you message.
Reachability
Check if a number is reachable, absent, or barred to reduce failed delivery attempts.
Ported Status
Detect number portability so you bill and route against the true serving carrier.
Country & Format
Validate E.164 formatting, country codes, and national formats before send.
Bulk Lookup
Process large number lists asynchronously with batch jobs and webhook completion events.
Fraud Signals
Surface risk indicators for virtual numbers, high-risk ranges, and suspicious patterns.
Built for Identity Workflows
Pair Number Lookup with Verify, Identity, and Fraud Guard.
Validate First
Confirm format & reachability
Send OTP
Only message good mobiles
Risk Score
Flag VOIP & high-risk ranges
Clean Lists
Bulk hygiene for campaigns
Better Data, Better Outcomes
From OTP quality to campaign hygiene and fraud control.
SMS Cost Optimization
Filter unreachable or wrong-type numbers to cut wasted SMS spend and improve ROI.
OTP & Verify Flows
Validate mobiles before sending OTPs to reduce friction and fraud in authentication.
CRM Hygiene
Clean contact databases by removing invalid, landline, or ported-without-update numbers.
Routing Intelligence
Choose the right channel and carrier path based on live number intelligence.
Fraud Prevention
Block high-risk VOIP or disposable numbers before they enter high-value flows.
Market Expansion
Validate international formats and carriers as you onboard users in new countries.
Instant Number Intelligence
See carrier, type, ported status, and risk signals in a single response—ready for routing decisions.
Simple Per-Lookup Pricing
Pay only for successful lookups. Volume discounts as you scale.
Pay As You Go
No commitment—bill per successful lookup
- HLR & basic validation
- Carrier & number type
- E.164 formatting
- REST API access
- Email support
Growth
Volume pricing for active platforms
- Everything in Pay As You Go
- Reachability & ported status
- Fraud risk signals
- Bulk async lookups
- Webhooks
- Priority support
- Dashboard analytics
Enterprise
Committed volume and SLAs
- Custom per-lookup rates
- Dedicated throughput
- Private data retention options
- SSO & advanced security
- 99.99% SLA
- Account manager
- 24/7 support
Lookup Any Number in One Call
Use the Sendexa SDK or REST endpoint to validate numbers, detect carriers, and score risk before you send.
// Number lookup with sendexa
import { Sendexa } from 'sendexa';
const client = new Sendexa({
apiKey: process.env.SENDEXA_API_KEY,
});
const result = await client.lookup.number({
phoneNumber: '+233241234567',
fields: [
'carrier',
'type',
'ported',
'reachable',
'risk',
],
});
// Or REST:
// GET /v1/lookup/number?phone=+233241234567
console.log(result.carrier, result.type, result.risk_score);
// Bulk job
const job = await client.lookup.bulk({
numbers: ['+233...', '+234...'],
webhookUrl: 'https://api.you.com/hooks/lookup',
});2B+
Lookups
200+
Countries
10k+
Businesses
99.99%
Uptime
Frequently Asked Questions
Everything you need to know about Number Lookup / HLR.
What is Number Lookup / HLR?
Number Lookup queries network and number intelligence sources—including HLR where available—to return carrier, type, ported status, reachability, and validation data before you message.
How is pricing calculated?
You pay per successful lookup. Growth and Enterprise plans unlock lower unit rates with monthly volume. Failed or invalid API calls due to client errors are not billed the same as successful lookups.
What fields does a lookup return?
Typical responses include E.164 number, country, number type (mobile/landline/VOIP), carrier, ported flag, reachability status, and optional fraud risk scores depending on plan.
Can I look up numbers in bulk?
Yes. Submit bulk jobs via the API, poll for status, or receive a webhook when the batch completes. Ideal for CRM cleanses and campaign list preparation.
Does this help reduce SMS costs?
Absolutely. Filtering invalid, unreachable, or non-mobile numbers before send reduces failed deliveries and wasted spend—especially on large outbound campaigns.
How does fraud signaling work?
We score risk factors such as known VOIP ranges, disposable patterns, and anomalous activity. Use scores as hard blocks or soft signals in your verification flow.
Is Number Lookup part of Verification?
Yes. Number Lookup sits in the Verification & Identity category and pairs well with Verify API for OTP delivery and Identity for full KYC workflows.
Is there a free trial or test credit?
New accounts receive trial credits to test REST lookups and bulk jobs in sandbox and production-like environments before committing to volume.
Validate Numbers Before You Send
Reduce failed messages, improve OTP quality, and stop fraud with Number Lookup. Start with trial credits today.