Phone validation.

UK numbers, normalised to E.164 — with carrier and line type.

Parse any UK phone format, return E.164, and classify mobile vs landline vs VoIP vs non-geographic. Live HLR lookup tells you the current carrier — not the number's original range-holder.

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GET/phone/%2B447700900123

{
  "success": true,
  "results": [
    {
      "number": "+447700900123",
      "isValid": true,
      "isPossible": true,
      "type": "MOBILE",
      "countryCode": "GB",
      "countryName": "United Kingdom",
      "nationalFormat": "07700 900123",
      "internationalFormat": "+44 7700 900123",
      "e164Format": "+447700900123",
      "originalCarrier": "EE Limited",
      "currentCarrier": "Vodafone Limited",
      "isPorted": true,
      "isReachable": "delivered",
      "mcc": "234",
      "mnc": "15",
      "level": "hlr"
    }
  ],
  "meta": {
    "countResults": 1,
    "performance": { "workerMs": 116, "lookupMs": 113 }
  }
}

● 200 OK·38MS

USE CASES

Where people use it.

2FA / OTP

Don't send an SMS to a landline — reject non-mobile at signup.

SMS cost control

Mobile-only filter saves wasted sends on invalid or fixed-line numbers.

Delivery ETAs

Normalise driver contact numbers to E.164 before hitting your SMS provider.

CRM hygiene

Deduplicate numbers across inconsistent formats.

RESPONSE SHAPE

Every field, documented.

The full field list is in the API reference. Here's the shape you'll be consuming.

FIELD	TYPE	EXAMPLE
number	string	"+447700900123"
isValid	boolean	true
isPossible	boolean	true
type	string \| null	"MOBILE"
countryCode	string \| null	"GB"
countryName	string \| null	"United Kingdom"
nationalFormat	string \| null	"07700 900123"
internationalFormat	string \| null	"+44 7700 900123"
e164Format	string \| null	"+447700900123"
originalCarrier	string \| null	"EE Limited"
currentCarrier	string \| null	"Vodafone Limited"
isPorted	boolean \| null	true
isReachable	string \| null	"delivered"
mcc	string \| null	"234"
mnc	string \| null	"15"
level	string \| null	"hlr"

Ready in under a minute.

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