Blacktel review: a VoIP second line with 40 countries and no public prices
★★★☆☆ 2.7 / 5更新于 由 SMS ActiveR 团队撰写
一句话结论
Blacktel is a VoIP second-line service for people who want calls, texts and eSIM data under one long-lived account, rather than a quick way to grab a one-time verification code. It hides every price behind a signup wall, its mobile apps have been left untouched for years, and public reputation signals are weak. Our rating: 2.7 out of 5.
Blacktel strengths: 40 countries and 2+ payment methods
Blacktel keeps calls, SMS, fax, toll-free and eSIM data under one account, so a single virtual number can double as a working second phone line.
The catalogue covers 40 countries for numbers, including the United States, United Kingdom, Canada, Germany, France and Australia.
Named products for common use cases (WhatsApp SIM, Trash SIM, Toll-Free) make it easy to pick the right kind of virtual number.
Payments accept both cryptocurrency and credit card, which suits users who prefer to keep the purchase off a card.
A downloadable softphone for Windows, macOS and Linux is offered alongside the numbers, so calls and texts work from the desktop, not only in a browser.
Blacktel runs a free-numbers section for anyone who wants to try SMS without paying first.
Does Blacktel have a mobile app?
Blacktel has a mobile app on both iOS and Android that acts as a softphone for the virtual number and eSIM line: calls, SMS and account management from the phone. Both builds are long unmaintained. The iOS app was last updated on 13 October 2021 and the Android app, listed on Google Play under the name Second Number, on 22 May 2023.
Blacktel does run a free-numbers section on its site, so it is possible to try SMS reception without paying. As with any free public number, expect the same line to be shared with other users, so a code for a popular service may already be used or slow to arrive. Need free numbers that actually receive codes? Try free SVN numbers.
How much does Blacktel cost?
Blacktel does not publish a single price on its public site. The pricing page loads the same JavaScript shell as the homepage, and neither the country pages nor the catalogue shows a figure before signup, so the true cost per number is only visible from inside an account. That means anyone shopping around cannot compare Blacktel to another provider without first creating an account.
每家接码平台的价格都随号码实时可用性浮动。充值前请务必核对你所需服务和国家的实时价格。
Blacktel 后台实测
Blacktel's dashboard sits behind a required signup. The public site is a JavaScript shell that shows product marketing, and the pricing page renders the same shell with no figures. Once inside the account, users pick a country and a number type (Calls + SMS, Calls, SMS, Fax, Toll-Free, WhatsApp SIM or Trash SIM), then manage the line the way a softphone works: an inbox for SMS, a dialer for calls, and separate eSIM data plans.
如何在 Blacktel 上接收验证码
Create a Blacktel account on blacktel.io. No price is visible until you are signed in.
Top up the balance with cryptocurrency or a credit card.
Pick a country from the catalogue of 40 (United States, United Kingdom, Canada, Germany, France, Australia and others).
Choose a number type that fits the service you plan to use: Calls + SMS, SMS only, WhatsApp SIM or Trash SIM for short-term use.
Order the virtual number and open its inbox inside the dashboard or the desktop softphone.
Use the number to receive verification codes for online services such as WhatsApp, Telegram, Facebook, Google or TikTok.
Blacktel's public catalogue listed virtual numbers for 40 countries on 2026-08-06, with the United States, United Kingdom, Canada, Germany, France, Australia, Argentina, Austria, Belgium, Brazil, Denmark, Estonia, Finland and Greece among them. The homepage headline advertises USA, UK, Canada 'or 200+ countries', but that larger figure refers to eSIM data coverage rather than the number catalogue. The countries where a phone number is actually on sale are the 40 in the catalogue.
支付选项
Blacktel is a paid service and payment is required before any virtual number is issued. The two accepted methods are cryptocurrency and credit card. Registration is mandatory: no price for any country, number type or plan is exposed on the public site, so a user has to sign up first and only then sees what the numbers cost.
Blacktel 在我们测试中的表现
On 2026-08-06 we opened blacktel.io in a clean browser, walked the homepage, pricing page, country catalogue and product pages, and counted how many countries the number catalogue actually lists. We read the public policies, the WhatsApp SIM, Trash SIM, Calls, SMS and Fax product descriptions, and checked whether any price is visible before creating an account. We then pulled the third-party signals: the Trustpilot TrustScore, the iOS App Store listing under Blacktelio OUe and the Google Play listing under the name Second Number, noting when each store build was last updated. We did not run paid activations on Blacktel. This review is a read of the live site, the app store listings and the public reputation, not an attempt to buy a verification code.
我们检查了什么
Read the live site, the catalogue and the country pages on 2026-08-06
Counted the countries actually listed for virtual numbers: 40
Looked for a public price on every route the site exposes, including the pricing page
Checked the iOS and Android listings, including how long since each build shipped
Read the public reputation signals on Trustpilot
Bought no numbers, so no delivery rate is claimed for this provider
指标
SMS Verification Number
Blacktel
Delivery rate (codes received)
85%
~65%
Median delivery time
30s–1 min
1–5 min
"Number already used" rate
~10%
from 40%
Service pass rate (TG/WA/Google)
~100%
varies by service
Number type
Real SIM
Virtual/VoIP, sold as a softphone line
Charged only for delivered codes
Yes
Price not visible before signup; policy on undelivered codes not exposed on the public site
SMS Verification Number 是我们评分最高的选择，所以用作参照列。数据来自我们上面的亲测；竞品的可用性会随时间变化，你的实际结果可能不同。
One account covers a virtual phone number, calls, SMS, fax and eSIM data.
40 countries in the number catalogue, including the major English-speaking markets.
Both cryptocurrency and credit card are accepted.
Named products for WhatsApp and short-term 'Trash SIM' use match how people actually shop for a second number.
A desktop softphone for Windows, macOS and Linux ships alongside the numbers.
A free-numbers section is available for users who want to try SMS reception without paying.
缺点
Blacktel numbers are virtual/VoIP, so services with strong anti-fraud filters (WhatsApp, Telegram, Google, TikTok) often reject them.
No price is visible anywhere on the public site: the pricing page renders an empty JavaScript shell, so a user must create an account before seeing what a number costs.
The mobile apps look abandoned: the iOS build was last updated on 13 October 2021 and the Android build, listed as Second Number, on 22 May 2023.
Public reputation is weak: a TrustScore of 1.7 out of 5 across 206 reviews on Trustpilot, 2.4 out of 5 from 14 ratings on the App Store and 3.0 out of 5 from 41 reviews on Google Play.
The advertised '200+ countries' on the homepage refers to eSIM data coverage, not the number catalogue, which actually holds 40 countries. That is an easy point of confusion when picking a country.
Signup is required before you can see a single price, a single country's stock level or a single number, which is friction for anyone who just wants a one-off verification code.
Blacktel 不适合哪些场景
Anyone who needs a one-time verification code in the next few minutes, since Blacktel forces signup and top-up before a number is issued.
Users who want to compare prices across providers before spending anything, since Blacktel exposes zero pricing on its public site.
Anyone verifying on services with strict anti-VoIP checks such as WhatsApp, Telegram, Google or TikTok, where virtual numbers are frequently rejected.
People who expect an actively maintained mobile app, since both the iOS and Android builds have gone years without an update.
我们测试团队的观察
Blacktel's own homepage sells the product as a VOIP phone with virtual numbers and eSIM, which is a second-line service, not a verification workflow, so we treat it as one on this page.
— SMS ActiveR test team · Blacktel homepage, checked 2026-08-06
We could not see a single price on the public site. The pricing page loaded the same JavaScript shell as the homepage, and neither the catalogue nor the country pages showed a figure before signup.
— SMS ActiveR test team · Blacktel pricing and catalogue pages, checked 2026-08-06
Blacktel verdict: a VoIP second line, not a place to buy quick codes
Blacktel sits closer to a personal VoIP phone than to a verification service. If you want a second number for calls, SMS and eSIM data on one account, it covers that ground. If you just need a working verification code today, the hidden pricing, abandoned apps and low outside scores make it a poor fit. Buyers who specifically want long-term phone numbers tied to their identity may still find value here, but anyone comparing it against dedicated providers of disposable phone numbers for one-off signups will quickly see the gap in speed and transparency.
Blacktel 是什么？
Blacktel is a VoIP service that sells virtual numbers, eSIM data plans and a downloadable softphone for Windows, macOS and Linux. Its own homepage frames the product as a VOIP phone, and the number range is built around telephony use: Calls + SMS, Calls only, SMS only, Fax, Toll-Free, plus products named WhatsApp SIM and Trash SIM. It is aimed at users who want a second, long-lived phone line for calls and texts across online services, rather than a quick one-off SMS verification.
Blacktel 常见问题
Blacktel is a VoIP service at blacktel.io that sells virtual numbers, eSIM data plans and a desktop softphone. Its own homepage frames the product as a VOIP phone for calls, SMS, fax, toll-free and eSIM data under one account, aimed at users who want a long-lived second phone line rather than a one-off SMS verification.
Blacktel is primarily paid. The virtual numbers, eSIM plans and softphone are sold behind a signup and top-up. There is also a free-numbers section on the site, but the main product line is paid and no price is shown before you create an account.
There is no Blacktel promo code we can confirm from the public site as of 2026-08-06. Any 'Blacktel promo code' offer found on third-party coupon sites is not backed by an official published code, so treat it with caution.
On outside signals, Blacktel is rated low: a TrustScore of 1.7 out of 5 across 206 reviews on Trustpilot, 2.4 out of 5 from 14 ratings on the iOS App Store and 3.0 out of 5 from 41 reviews on Google Play. Our own rating is 2.7 out of 5: usable as a second VoIP phone line, weak as a fast route to a verification code.
On 2026-08-06 we read the live blacktel.io site (homepage, pricing page, country catalogue, product pages), the public policies and the mobile app store listings on iOS and Google Play. We did not run paid activations; the verdict is based on what the site publishes, what the apps show and the public reputation signals from Trustpilot and the two app stores.
Yes. Blacktel has an iOS app published by Blacktelio OUe, last updated on 13 October 2021, and an Android app listed on Google Play as Second Number, last updated on 22 May 2023 with 10K+ downloads. Both builds have gone years without an update, so treat the apps as long-abandoned.
If the goal is a paid verification code that lands on the first try, a real SIM-based service like our top pick SMS Verification Number is a better fit than a VoIP second-line product. If the goal is a free one-off receive-SMS inbox, a public board such as TempNum, AnonymSMS or SMSCodes will cover it.
Blacktel's number catalogue listed 40 countries on 2026-08-06, including the United States, United Kingdom, Canada, Germany, France and Australia. The '200+ countries' figure on the homepage refers to eSIM data coverage, not to the countries where a virtual phone number is actually on sale.
The common use cases are WhatsApp, Telegram, Facebook, Google and TikTok. Because the numbers are virtual/VoIP, services with strong anti-fraud filters may reject them, so plan for a fallback if the first code does not land.