Book a meeting with usBook a meeting

HLR API documentation

API solution for checking numbers is intended for clearing up the number databases and making real-time checks before sending.


Authentication is done using an unique key. Base url for requests is

1. HTTP interface

Requests are performed through HTTP protocol.


1.1 Parameters

NameRequiredDefault valueDescription
api_keyyesyour registered HLR-Service API key
phoneyesPhone number in international format with or without “+” sign

2. Error codes

1Invalid API_KEY
2System error
3No route found
4Requests overlimit
5Not defined destination price
6Restricted by country
7Portability checking error
8HLR lookup error
9Insufficient funds
10Restricted by IP-address
11Invalid phone number format