# Address Guard, contact us: Phone validation API

> Check and validate your customer phone numbers in real-time or in bulk to ensure the number is genuine and can receive messages.

Address Guard's phone validation API on its Enterprise plan. It returns 5 of the 9 key fields we check: Number, Validity, Type, Carrier, Place.
We haven't run Address Guard through [our phone validation API benchmark](https://datacircle.dev/best-phone-validation-api.txt) yet.
Address Guard gives this plan's price on request. We rank 888 plans for phone validation APIs by price. Half the plans cost $3.376 per 1,000 phones or less.
[Botoi's $199 monthly plan](https://datacircle.dev/validate-phone-apis/botoi/199-monthly/llms.txt) is the cheapest paid plan per 1,000 phones: as little as $0.0066. Botoi's $199 monthly plan covers up to 1,000,000 phones a day.
[Data247](https://datacircle.dev/validate-phone-apis/data247/12-pack-membership-get-v3-0-verify247-phone/llms.txt), [Foxentry](https://datacircle.dev/validate-phone-apis/foxentry/top-up-pay-as-you-go-post-phone-validate-validate-phone-number-extended/llms.txt) and [HLR Lookups](https://datacircle.dev/validate-phone-apis/hlr-lookups/top-up-1-1m-post-hlr-lookup/llms.txt) are the best phone validation API providers in the Datacircle benchmark.

- This page: https://datacircle.dev/validate-phone-apis/address-guard/contact-us
- [Phone validation API: 40+ providers compared](https://datacircle.dev/best-phone-validation-api.txt)
- Get it: https://addressguard.io/pricing?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=phone-validation-api-pricing
- Request: Docs on request from sales
- API key: with the plan, on https://addressguard.io/pricing?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=phone-validation-api-pricing
- Its API docs: https://addressguard.io/address-validation-api?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=phone-validation-api-pricing
- Sold by: Address Guard (https://addressguard.io?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=phone-validation-api-pricing)
- Checked: 2026-11-05

## In the answer

- Completeness: 56%
- Number: ✓
- Validity: ✓
- Type: ✓
- Carrier: ✓
- Place: ✓

## Price

- Per: call
- Billing: contact

## Aggregators

- Aggregators: none

## In their words

- Their pitch: Check and validate your customer phone numbers in real-time or in bulk to ensure the number is genuine and can receive messages.

## Data

- Freshness: live
- Countries: Worldwide
- What it checks: numbering plan, line in service
- Keep data: no limit
- Use data: You are granted a limited, non-exclusive, non-transferable, revocable license to access and use the Platform solely for your internal business purposes in accordance with these Terms. This license does not include any right to sublicense, modify, create derivative works, or commercially exploit the Company IP. [...] You agree to use the Platform only for lawful purposes and in accordance with these Terms. You shall not: Use the Platform in violation of any applicable federal, state, local, or international law or regulation, Reverse engineer, decompile, disassemble, or attempt to derive the source code of the Platform, Reproduce, duplicate, copy, sell, resell, or exploit any portion of the Platform without express written permission from Address Guard, Use automated means (bots, scrapers, crawlers) to access or interact with the Platform in an unauthorized manner, Transmit any viruses, malware, or other harmful or malicious code, Interfere with or disrupt the integrity, performance, or security of the Platform or its servers, Circumvent or attempt to circumvent any access control or security mechanisms, Use the Platform to process, store, or transmit data in violation of any privacy or data protection laws, Engage in any fraudulent, deceptive, or misleading activities, or Sublicense, transfer, or assign your access rights without our prior written consent.

## Speed

- Answer: in the call

## The call

- You send: Docs on request from sales

## About the plan

- Plan: Enterprise
- Who can get it: brands processing over 15,000 monthly orders

## The 8 fields the plan's answer can hold

phone number, status, reason, line type, carrier, line status, location, can receive messages

## Address Guard's plans (1)

- [Address Guard, contact us](https://datacircle.dev/validate-phone-apis/address-guard/contact-us/llms.txt): 56% complete, live

## Address Guard's calls (1)

- Docs on request from sales: [Address Guard, contact us](https://datacircle.dev/validate-phone-apis/address-guard/contact-us/llms.txt)

## Address Guard's APIs (2)

- [Address Guard: email verification API pricing, 1 plan](https://datacircle.dev/validate-email-apis/address-guard/contact-us/llms.txt)
- [Address Guard: phone validation API pricing, 1 plan](https://datacircle.dev/validate-phone-apis/address-guard/contact-us/llms.txt)

## Address Guard: phone validation API alternatives

- [Foxentry, contact us, Above 100 000 req / month, POST /phone/validate, Validate phone number (extended)](https://datacircle.dev/validate-phone-apis/foxentry/contact-us-above-100-000-req-month-post-phone-validate-validate-phone-number-extended/llms.txt): 56% complete, live
- [HLR Lookups, contact us, Postpaid account, POST /hlr-lookups](https://datacircle.dev/validate-phone-apis/hlr-lookups/contact-us-postpaid-account-post-hlr-lookups/llms.txt): 56% complete, live
- [Data8, contact us, Bespoke deals, POST /PhoneValidation/IsValid.json, IsValid](https://datacircle.dev/validate-phone-apis/data8/contact-us/llms.txt): 56% complete, live
- [Byteplant, contact us](https://datacircle.dev/validate-phone-apis/byteplant/contact-us/llms.txt): 56% complete, live

## Sources

From each provider's own pricing page and docs, and from what providers tell us. We read this row from these pages on 2026-11-05.

- https://addressguard.io/address-validation-api?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=phone-validation-api-pricing
- https://addressguard.io/faq?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=phone-validation-api-pricing
- https://addressguard.io/phone-number-validation/?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=phone-validation-api-pricing
- https://addressguard.io/pricing?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=phone-validation-api-pricing
- https://addressguard.io/terms-of-service?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=phone-validation-api-pricing