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SPECIFICTION
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HLR Lookup vs Neutrino Phone Validate

HLR Lookup

hlrlookup.com

Neutrino Phone Validate

neutrinoapi.com

Side by side

FigureHLR LookupNeutrino Phone Validate
Price from—£8/mo
Free plan—Yes
Free trialYes—
Open source——
WebYes—
APIYesYes
Plans published104
Spec score · Phone Number Validation Software8.1 (#3)7.9 (#8)
Founded20052013
HeadquartersLeeds, West Yorkshire, United KingdomAuckland, New Zealand
Security and privacyThe privacy policy says it was reviewed in January 2026 as part of the company's annual ISO 27001 accreditation and describes its GDPR commitments.Neutrino says it never stores or logs data sent to its APIs and that its infrastructure uses multifactor authentication and high-grade security standards.
SupportThe company offers UK-based support through online chat, tickets, email, or phone, and provides a knowledge base.All paid accounts receive free 24/7 online technical support.

Plans

HLR Lookup

  • 2,500 lookups$16.55, paid once
  • 5,000 lookups$29.79, paid once
  • 10,000 lookups$56.93, paid once
  • 25,000 lookups$135.70, paid once
  • 50,000 lookups$258.16, paid once
  • 100,000 lookups$489.84, paid once
  • 200,000 lookups$900.25, paid once
  • 300,000 lookups$1,191.51, paid once
  • 500,000 lookups$1,787.27, paid once
  • 1,000,000 lookups$3,309.75, paid once

HLR Lookup pricing →

Neutrino Phone Validate

  • Free accountFree
  • Tier 1£8 a month
  • Tier 2£38 a month
  • Tier 3£190 a month

Neutrino Phone Validate pricing →

In their own words

HLR Lookup

HLR Lookup provides real-time status information for mobile numbers directly from network operators. It supports over 1,300 networks in more than 220 countries, with both an HTTP API and bulk processing. The API can validate numbers in web forms, mobile apps, third-party services, and desktop programs; developer examples are available in JavaScript, Python, Shell, and PHP. Bulk Upload accepts numbers in a range of formats, appends results beside the original data, and lets customers schedule, pause, and monitor batches. A successful lookup uses one credit; invalid mobile numbers and unsupported networks are not charged. New verified accounts receive 200 free credits, and previously processed numbers can be rechecked for free. Credit bundles are one-time purchases, with 2,500 lookups listed at $16.55, paid once. Credits expire 18 months after purchase unless otherwise agreed by email. Landline validation is limited to UK and Ireland numbers. The service is available on the web and through its API.

Visit hlrlookup.com

Neutrino Phone Validate

Neutrino Phone Validate is an API for parsing and checking local and international phone numbers, with location information in its responses. It accepts international numbers in E.164 format; local numbers require a country code or an IP address. Depending on the number, results can include validity, line type, local and international formats, location, country, currency code, and prefix network. Line type is inferred from the prefix and is unavailable in some countries, including most of the NANP region; Neutrino says HLR Lookup can provide carrier-level detection. The product page lists average round-trip latency of 15 ms for requests within the same data center or region, a maximum inbound rate of 500 requests per second, and concurrency of 250. A free account has limited daily requests, around 10–25 depending on the API, with no expiry. Paid Phone Validate tiers are £8 per month for 10,000 requests per 24 hours, £38 per month for 100,000, and £190 per month for one million. Paid API plans can include any or all Neutrino APIs, with separate daily quotas.

Visit neutrinoapi.com