When operating in the U.S. market, whether you are doing SMS notifications, voice dial testing, social platform registration, or building account pools and number portraits, a basic and critical technical link is:Identify the operator that the mobile phone number belongs to. To achieve efficient, automatic and stable identification, we must useMobile phone number operator identification interface.

Many companies are choosingWhen using API interfaces, we will be concerned about one core issue:Which mainstream US operators does this interface support? Can the identification be comprehensive enough? Can accurate results be fed back in real time?

This article focuses on one point:Current mainstream US carrier identificationAPI, what types of operators can it usually cover? How can you tell if this API is right for your business?

Why is carrier identification scope important?

Different U.S. operators vary greatly in number segment distribution, user groups, communication behaviors, and compliance policies. if yourThe API interface cannot accurately identify these operators, which will not only lead to deviations in operational strategies, but may also cause problems such as failure to send, limited registration, and account suspension risk control.

Especially in these application scenarios, identifying the operator is a critical step:

lbatchWhatsApp registration number segment filtering

lCompliance and risk control management of telemarketing outbound call system

lAccurate distribution of SMS channel routing

lDetermine whether the number is a virtual number,VoIP number

lMulti-platform binding risk filtering

lReal-name verification and anti-fraud behavior analysis

in short:Only if you know which operator this number belongs to can you decide how to use it next.

What are the generally supported mainstream US carriers?

High quality number recognitionAPI interface can usually accurately identify the following mainstream operators:

1.AT&T

One of the largest operators in the United States, with a wide user base and high authenticity, it is often used to bind calls and social platforms.

2. Verizon

A large network operator covering the whole country, the registration number range is extremely stable, and it is a commonly used operator for high-value customers.

3. T-Mobile

mergeSprint later became the third largest operator in the United States. The number segment is active and widely appears in mobile social registration.

4. US Cellular

Covering operators in central and suburban markets, it is suitable for local operator identification strategies.

5. Google Fi

Typical virtual operator (MVNO), often used for registrars or low-cost operations, with higher risks.

6. Cricket Wireless

AT&T's sub-brands are MVNOs and require special identification.

7. MetroPCS（Metro by T-Mobile）

A brand owned by T-Mobile, it is often used for short-term calls and prepaid cards. It can be marked for processing when risk control is frequent.

8. Boost Mobile

A low-cost operating brand under the Sprint/T-Mobile network, suitable for filtering out low-quality resources.

9. TracFone、Straight Talk

Multiple brandsMVNO sub-brand has wide coverage but different quality levels, so careful management is recommended.

10. VoIP operator identification (such as TextNow, Bandwidth, Onvoy)

Virtual numbers operated by non-traditional telecommunications companies are widely used for temporary registration and platform number brushing, and are the focus of risk control.

What capabilities should the number identification interface have?

When you select carrier identificationWhen using API, in addition to being able to identify the operator name, it should also have the following capabilities:

lIs it possible to distinguish between virtual operators (MVNO) and mainstream operators

lCan the operator type be returned: mobile/Landline/VoIP

lWhether it is possible to determine the status of the number (whether it is active, whether it is in use)

lWhether it has a high update frequency and keeps up with changes in operator data

lWhether to support dual channels of batch identification and real-time request

lIs it compatible with your system docking method (RESTful API, etc.)

For example, Digital Planet's operator identification interface, in addition to covering all the above-mentioned mainstream operators, also supports the operator risk scoring mechanism to automatically mark numbers that are not recommended for registration, cannot be marketed, and are extremely prone to complaints.

What tests can be done before accessing?

It is recommended that enterprises prepare a batch of U.S. numbers from different sources before officially connecting, and use the following methods to conduct interface testing:

1.Observe whether the operator name returned is consistent

2.Check whether it can be distinguishedMVNOs and master brands

3.Verify interface return speed and data integrity

4.Compare the business system to test the call success rate and accuracy

5.Check to see if there are any system-level recommended tags (e.g."Suitable for registration", "High risk of account suspension", etc.)

The Digital Planet platform provides development teams with test data packages andThe API test port is convenient for quickly verifying the docking effect.

How do multi-platform services use operator identification results?

The following are some typical usage scenarios:

lWhatsApp registration control system: Filter out unstable number segments, such asVoIP or temporary card operator

lSaaS registration anti-fraud strategy: Combining operators withIP ownership, determine the authenticity of the account

lSMS sending platform routing selection:Select the lowest cost according to the operator/Channel with the highest delivery rate

lcustomer service/ Telemarketing call system: Identify operators with low connection rates and reduce failure rates

lMultiple social account binding verification: Determine whether it is a mainstream operator account for general registration and improve the account stability score.

Carrier identification is not just"Identify ownership", but establish "starting point judgment" for every step of the entire business operation.

If you want to figure it out before every number processing"Where does it come from", then you need to use a professional operator identification API.Digital Planet provides testing services covering mainstream and virtual operators across the United States, allowing you to complete the first step of layering before your number enters the business system.

digital planet is a world-leading number screening platform that combines Global mobile phone number segment selection, number generation, deduplication, comparison and other functions . It supports customers worldwideBatch numbers for 236 countriesScreening and testing services , currently supports40+ social and apps like:

whatsapp/line, twitter, facebook, Instagram, LinkedIn, Viber, zalo, binance, signal, skype, DISCORD, Amazon, Microsoft, Truemoney, Snapchat, kakao, Wish, GoogleVoice, Botim, MoMo, TikTok, GCash, Fantuan, Airbnb, Cash, VKontakte, Band, Mint, Paytm, VNPay, Moj, DHL, Okx, MasterCard, ICICBank, Byb Wait.

The platform has several features including Open filtering, active filtering, interactive filtering, gender filtering, avatar filtering, age filtering, online filtering, precise filtering, duration filtering, power-on filtering, empty number filtering, mobile phone device filtering wait.

Platform provides Self-screening mode, generation screening mode, fine screening mode and customized mode , to meet the needs of different users.

Its advantage lies in integrating major social networking and applications around the world, providing one-stop, real-time and efficient number screening services to help you achieve global digital development.

You can find it on the official channelt.me/xingqiupro Get more information and verify the identity of business personnel through the official website. official businesstelegram:@xq966

(Kind tips:existWhen searching for Telegram’s official customer service number, be sure to look for the usernamexq966), you can also verify it through the official website personnel: https://www.xingqiu.pro/check.html , confirm whether the business contact you is a planet official