Second Number for WhatsApp: 7 Tested Apps for 2026 (What Actually Survives the Anti-VoIP Filter)
How WhatsApp's anti-VoIP filter actually works
WhatsApp signup runs a Twilio-Lookup-class check on the number before sending the verification SMS. The check returns a routing classification: physical-SIM, MVNO, business mobile, or VoIP. If the route classifies as consumer VoIP, WhatsApp will often still send the SMS — the verification appears to succeed — and then run a secondary review on the account within 24–72 hours. If the secondary review confirms the number sits on a recycled or shared VoIP route, WhatsApp bans the number silently. The user sees "this number is no longer registered" the next time they open the app.
Three categories survive the filter at meaningful rates:
Physical-SIM-class non-VoIP rentals. Services that source from rental SMS providers using physical SIM banks or business-mobile MVNO inventory (TextVerified, SMSPool, certain TwoLine routes). These typically pass both the signup check and the post-signup review.
Business-mobile rentals from established providers. Hushed and Sideline source from different upstream stacks; Hushed's monthly tier passes WhatsApp at meaningful rates because the routes lean business-mobile rather than consumer VoIP.
One-shot codes with non-VoIP guarantees. VerifySMS and similar pay-per-code services rent a number for the SMS only — the rental ends after the code arrives. Because the number isn't held by you, WhatsApp's post-signup review still runs against the carrier route, but if the route is physical-SIM-class the account stays clean.
What fails: free consumer apps (TextNow, TextFree, Google Voice with most newer numbers) and the cheapest "$0.99/month US numbers" that recycle VoIP routes. These pass the initial SMS but get banned in days.
How I tested
For each service: install fresh, sign up with a fresh email, attempt a fresh WhatsApp signup with a fresh Android device profile (no carryover). For the 6 monthly-rental services, I ran 4 separate WhatsApp signup attempts per service — fresh number each time when the service supported re-renting, otherwise across 4 different rental cycles. For VerifySMS, 4 single-code purchases. After each successful signup, I held the account for 7 days before counting it as a passing result. Total: n=24 monthly-rental attempts plus 4 one-shot purchases, April 1 – April 30, 2026.
Per-service sample size is small (n=4) — large enough to spot order-of-magnitude differences (TwoLine 4/4 vs TextNow 1/4 is real, not noise) but not enough for statistical claims about the broader market. Reddit threads in r/whatsapp, r/WhatsAppBusiness, and r/PrivacyPals corroborate the same direction across hundreds of user reports. Treat the numbers as a yardstick, not a benchmark.
The 7 apps, individually tested
1. TwoLine — best multi-country WhatsApp rental
Verdict tag: Monthly second-line. Best if you need WhatsApp Business on a UK or NL number, or want a cheaper US WhatsApp number than Hushed.
Tested: April 1–4, 2026 (plus 7-day hold). WhatsApp result: 4/4 — all 4 fresh signup attempts succeeded and survived the 7-day post-signup window.
Pricing in USD-equivalent (paid via TwoLine credits, $4.99 = 5 credits): - US number: ~$6.99/month - UK number: ~$9.99/month - NL number: ~$11.99/month
15-minute refund window: if no SMS arrives within 15 minutes of activating a verification rental, credits are auto-returned.
Where TwoLine wins for WhatsApp: Multi-country coverage (only service in this guide with UK + NL — Hushed is US/Canada only). Cleanest carrier routing in my test, including post-signup persistence. Stripe + crypto payments. The 15-minute refund window means a failed WhatsApp attempt costs nothing.
Where TwoLine falls short: No outbound calling on the rental (WhatsApp doesn't need it, but if you also want to make voice calls outside WhatsApp, Hushed has it). No lifetime tier. Six weeks of operating history vs Hushed's nine years. $4.99 minimum top-up makes one-off WhatsApp signups uneconomic — use VerifySMS for that.
I built TwoLine. I'm also part of the team building VerifySMS, a sister brand for pay-per-SMS verification. Different products on purpose; this guide includes both because they fit different sub-niches inside the WhatsApp second-number search.
2. Hushed — established US/Canada WhatsApp with lifetime upside
Verdict tag: Monthly second-line. Best for a US/Canada WhatsApp Business number you'll keep for 5+ years (lifetime tier $99) or for users who want outbound voice calling alongside WhatsApp.
Tested: April 5–8, 2026 (plus 7-day hold). WhatsApp result: 3/4 — three signups passed and survived the hold; one was banned on day 4 (number rotated back into a flagged route).
Pricing tiers (verified April 28, 2026): - 7-day pass: $1.99 - Monthly: $9.99 - Annual: $49.99 - Lifetime: $99 one-time (with 90-day inactivity reclamation per their published ToS)
The lifetime tier is the standout — no other app in this guide offers it, and at $99 over 5+ years of weekly use it beats every monthly competitor on price. Set a quarterly reminder to send one SMS to keep the number active.
Where Hushed wins for WhatsApp: Mature carrier relationships mean the routes lean business-mobile rather than consumer VoIP. Outbound calling included (helpful for verifying WhatsApp Business with a callback flow if SMS fails on first try). Apple/Google IAP-paid means no Stripe-card friction.
Where Hushed falls short: US/Canada only. No UK, NL, or DE coverage — if WhatsApp needs to be on a UK number for a UK-based audience, Hushed can't do it. One in four numbers in my test was retroactively banned on day 4 — the failure mode WhatsApp users complain about most.
3. TextVerified — US non-VoIP per-rental, highest WhatsApp survival rate
Verdict tag: Per-rental. Best if you only need one WhatsApp signup and want the strongest non-VoIP guarantee for a US number, or if you want a US number for a few days/weeks rather than a full month.
Tested: April 9–12, 2026 (plus 7-day hold). WhatsApp result: 4/4 — all signups passed and survived the hold.
TextVerified specializes in non-VoIP US numbers — they explicitly source physical-SIM-class routing rather than consumer VoIP. Pricing is per-rental rather than per-month, which makes the math harder to compare directly: a 1-day rental might cost $1.50, a 30-day rental $9, a 6-month rental $30+.
Where TextVerified wins for WhatsApp: Non-VoIP routing class is genuinely different from consumer apps. TextVerified emphasizes physical-SIM-class routing in their marketing and dashboard; consumer apps source from rental SMS providers leaning consumer VoIP (different upstream stacks). Highest WhatsApp survival rate in my test — both at signup and across the 7-day hold — though I can't independently audit the upstream sourcing for any provider; these are stated provider differences, not externally verified.
Where it falls short: US-only. Pricing structure is awkward to compare against monthly subscriptions. UI is dated. If you also want outbound calling, you'll need a separate app.
4. SMSPool — US-focused per-code with non-VoIP guarantees
Verdict tag: Per-code. Best for one-shot WhatsApp signups when you want a Stripe + crypto payment option and US non-VoIP routing.
Tested: April 13–16, 2026 (plus 7-day hold). WhatsApp result: 3/4 — three signups passed and survived; one number was banned on day 6.
SMSPool runs an explicitly non-VoIP US inventory. Pricing $0.50–$2 per WhatsApp code. Free tier exists but for low-quality services only — the paid tier is where WhatsApp signups actually work.
Where SMSPool wins for WhatsApp: Cleaner US carrier routing than crypto-first competitors. Auto-refund on no SMS. Decent dashboard UI. Pay with Stripe or crypto.
Where it falls short: US-only. Higher minimum than 5sim. Not as wide a country catalog as 5sim if WhatsApp needs to be on a non-US number.
5. VerifySMS — Stripe-paid one-shot for WhatsApp signups
Verdict tag: Per-code. Default for one-shot WhatsApp signups on Stripe-clean US cards.
VerifySMS charges $0.42 per US verification code, paid via Stripe. The number is rented for one code reception; once received (or the 15-minute window expires), the rental ends with auto-refund if no code arrived. No persistent number. No app to keep.
Tested: 4 single-code WhatsApp signup purchases April 17–20, 2026 (plus 7-day hold). WhatsApp result: 4/4 — all 4 codes delivered and the resulting WhatsApp Business accounts stayed active through the 7-day window.
Best for: WhatsApp Business signup on Stripe-clean US cards, anytime you need a US WhatsApp number for one signup and don't need to keep the number afterward. Not for: WhatsApp accounts you'll need to receive future SMS on (password resets, etc.).
6. 5sim — cheapest WhatsApp codes, 50+ countries
Verdict tag: Per-code. Cheapest option globally for WhatsApp signups. Best if WhatsApp needs to be on a non-US country or you prefer crypto top-up.
Tested: April 21–24, 2026 (plus 7-day hold). WhatsApp result: 3/4 — three signups passed and survived; one number was rejected on signup (returned the SMS but WhatsApp banned the number same-day).
5sim covers 50+ countries with US WhatsApp codes starting at $0.30. Top-up via crypto (USDT primarily) or card. Mature platform with a decade of operating history.
Where 5sim wins for WhatsApp: Cheapest, widest country selection. If WhatsApp needs to verify on an Indonesian or Brazilian number, 5sim is one of the few options.
Where it falls short: Dashboard is dense. Support via Telegram only. Crypto-first checkout filters out users who want a regular card flow. Number quality varies by upstream provider — some routes clean, some pre-flagged. Higher same-day rejection rate than TwoLine, TextVerified, or VerifySMS.
7. TextNow (free) — almost never works for WhatsApp
Verdict tag: Free consumer VoIP. Tested for completeness; not recommended for WhatsApp.
Tested: April 25–28, 2026 (plus 7-day hold). WhatsApp result: 1/4 — three numbers were rejected at signup ("can't verify this number"), one passed signup but was banned on day 2.
TextNow is the most-installed free second-line app in the US (50M+ Android installs). It runs consumer VoIP routing across the US and Canada. Free with ads on the Free tier; SMS verification reads are paywalled at Premium ($9.99/mo) — but even on Premium the underlying routing is the same consumer VoIP.
Where TextNow wins: Not for WhatsApp. It works fine for casual texting, low-trust verifications (some games, free trials), and as a throwaway social media handle. WhatsApp specifically is the wrong job for TextNow.
Where it falls short: WhatsApp's anti-VoIP filter is tuned almost perfectly against consumer VoIP routing. TextNow numbers either fail at signup or get banned within days. If WhatsApp is your goal, skip TextNow even on Premium and use one of the paid non-VoIP services above.
Country coverage: where each service actually works for WhatsApp
| Service | US | Canada | UK | NL | DE | Other countries |
|---|---|---|---|---|---|---|
| TwoLine | ✓ | — | ✓ | ✓ | — | (US/UK/NL only at launch) |
| Hushed | ✓ | ✓ | — | — | — | — |
| TextVerified | ✓ | — | — | — | — | — |
| SMSPool | ✓ | — | — | — | — | — |
| VerifySMS | ✓ | — | — | — | — | — |
| 5sim | ✓ | ✓ | ✓ | ✓ | ✓ | 50+ countries |
| TextNow | ✓ | ✓ | — | — | — | — (and rarely passes WhatsApp) |
For WhatsApp specifically: country breadth narrows the field hard. If WhatsApp needs to be on a UK or NL number → TwoLine is the only monthly option (5sim covers it as per-code). If US/Canada → Hushed has the longest track record. If a non-US/UK/NL country → 5sim is the realistic answer (SMS-Man covers similar ground but didn't make this guide because its WhatsApp success rate was lower in my prior rental testing).
Provider Risk Score (will this WhatsApp number still work in 12 months?)
The same scoring method I used in the SMS-Activate alternatives post, TextNow alternative post, Hushed alternative post, and rent-a-phone-number post. Four signals: payment processor health, number sourcing geography, SMS routing transparency, public uptime data. Each scored 0–3, summed for a total out of 12.
How to read 0–3: 3 = established and transparent (Google, Apple/Google IAP, Stripe + public docs). 2 = solid with one weak signal. 1 = single fragile rail or no public transparency. 0 = known reliability problem.
Based on payment processor stability, operating history, ToS scans, and carrier routing data as of May 1, 2026.
| Provider | Payment | Geography | Routing | Transparency | Score |
|---|---|---|---|---|---|
| Hushed | 3 (Apple/Google IAP, Stripe) | 3 (US/CA carriers) | 2 (proprietary routing) | 2 (some public uptime) | 10/12 |
| VerifySMS | 2 (Stripe + NOWPayments) | 2 (US Stripe-clean) | 2 (stated providers) | 3 (public ToS, blog) | 9/12 |
| TwoLine | 2 (Stripe + NOWPayments) | 2 (US/UK/NL rental) | 2 (stated providers) | 2 (transparent docs) | 8/12 |
| TextVerified | 2 (Stripe) | 2 (US non-VoIP) | 2 (stated non-VoIP) | 2 (active blog) | 8/12 |
| SMSPool | 2 (Stripe + crypto) | 2 (US non-VoIP) | 2 (stated providers) | 2 (active dashboard) | 8/12 |
| 5sim | 2 (crypto + cards) | 3 (50+ countries) | 1 (rotating sources) | 1 (limited) | 7/12 |
| TextNow (free) | 2 (Apple/Google IAP) | 2 (US/CA only, VoIP) | 1 (VoIP routing flags) | 1 (no public uptime) | 6/12 |
Hushed tops because of nine years of operating history and Apple/Google IAP rails. VerifySMS scores 9 on transparency (public ToS + active blog + clear refund policy). TwoLine, TextVerified, and SMSPool tie at 8 — proven payment stack, US-focused inventory. 5sim's wider country coverage trades against routing transparency. TextNow scores lowest because its VoIP routing is exactly what WhatsApp's anti-VoIP filter targets.
This isn't a buy/avoid scoreboard. A score of 7 doesn't mean 5sim disappears tomorrow. It means if I had to bet on which WhatsApp routes survive WhatsApp's filter improvements over the next 12 months, I'd weight Hushed and the Stripe-direct services higher.
What I'd do today (decision tree)
Three questions, one primary pick per leaf. No "it depends" loops.
Q1: Do you need a WhatsApp account, or do you just need to sign up for one once and never re-verify?
If just one signup (no future SMS needed) → Q2-A. If you'll receive WhatsApp messages on this number for at least a month and possibly need re-verification → Q2-B.
Q2-A: One WhatsApp signup only. Default: VerifySMS at $0.42 (Stripe, no crypto, 15-minute auto-refund, 4/4 in this test). Disclosure: I'm part of the team building VerifySMS too — same disclosure pattern as TwoLine. Use 5sim ($0.30–$0.80) only if you want crypto top-up or a non-US country. Use SMSPool only if both miss your specific use case.
Q2-B: A WhatsApp number you'll keep. One more question:
Q3: Which country and how long?
- US, persistent for 1–12 months → TwoLine monthly at $6.99 (cheaper than Hushed, same product class, 4/4 in this test).
- US/Canada, planning to keep 5+ years with weekly use → Hushed lifetime at $99 with a calendar reminder to send one SMS every 90 days.
- UK or Netherlands → TwoLine at $9.99 UK / $11.99 NL (only multi-country option here).
- Strict non-VoIP required (WhatsApp Business for a regulated industry, banking-adjacent KYC) → TextVerified per-rental.
- A non-US/UK/NL country (Brazil, Indonesia, India) → 5sim as a per-code workaround. No persistent monthly option exists in this guide for those countries — the trade-off is real.
Five leaf nodes, each with one primary pick.
Stop overthinking — your move right now
If you only need one WhatsApp signup, stop reading and go to VerifySMS. Two minutes, $0.42, Stripe checkout, auto-refund if no code. The rest of this post doesn't apply to you.
If you need a WhatsApp number you'll keep: - US under $10/month → TwoLine at $6.99 - US/Canada with $99 lifetime upside → Hushed - UK or NL → TwoLine (only multi-country option)
Don't over-research a $7–$99 decision for an hour. The cost of testing the wrong tool is a few dollars; the cost of analysis paralysis is hours of your time.
Where Hushed and TextVerified still beat TwoLine for WhatsApp
I built TwoLine, so I'm biased — and three honest scenarios where the other apps are the better WhatsApp pick:
Scenario 1: Long-term WhatsApp number on a US line you'll keep for 5+ years. Hushed lifetime at $99 with a 90-day inactivity-reset is unbeatable on dollars-per-year. TwoLine has no lifetime tier. If you'll send a WhatsApp message at least once a quarter for the next decade, Hushed wins on math.
Scenario 2: WhatsApp Business for a regulated context (legal, financial, healthcare-adjacent). TextVerified's explicit non-VoIP guarantee is a stronger compliance story than any monthly second-line app, including TwoLine. The per-rental pricing is awkward but the routing class is the cleanest non-VoIP signal in this guide.
Scenario 3: WhatsApp + outbound voice calling matter equally. TwoLine doesn't include outbound calling on the rental. Hushed and Sideline do. If you'll text on WhatsApp and also call outside WhatsApp, picking Hushed gives you both in one app.
For everything else — most WhatsApp Business signups, multi-country needs, monthly rentals under $10 — TwoLine is what I'd recommend. But "best for me to ship" doesn't mean "best for everyone for WhatsApp specifically." Pick by your real situation.
FAQ
Can I use a free app number for WhatsApp?
Almost never. WhatsApp's anti-VoIP filter is tuned against consumer VoIP routing, which is exactly what TextNow, TextFree, and most "free US number" apps run on. In my testing TextNow passed WhatsApp 1/4 times, and the one that passed was banned on day 2. Google Voice with newer numbers also fails most of the time. If WhatsApp is your only verification need, plan to spend at least $0.42 for VerifySMS or $6.99/month for a paid second-line.
What's the cheapest way to get a US number for WhatsApp Business?
For a one-shot signup (you don't need to receive future SMS): VerifySMS at $0.42 (Stripe, US-clean) or 5sim at $0.30–$0.80 (crypto top-up). For a persistent number you'll keep: TwoLine at $6.99/month is the cheapest sustainable price for a US number that survives WhatsApp's filter. Anything significantly cheaper recycles VoIP routes that get banned in days.
Will a rented WhatsApp number get banned later?
Sometimes, yes. WhatsApp runs a secondary review on numbers within 24–72 hours of signup. If the carrier route gets re-classified as consumer VoIP, WhatsApp will ban the account silently. In my testing TwoLine, TextVerified, and VerifySMS all survived the 7-day post-signup hold 4/4 times; Hushed survived 3/4; SMSPool 3/4; 5sim 3/4; TextNow 1/4. Plan for a backup verification path if this happens to your account.
Can I use the same number for personal WhatsApp and WhatsApp Business?
No — WhatsApp ties one phone number to either WhatsApp or WhatsApp Business, not both. If you want both, you need two phone numbers. The common pattern: real cell number for personal WhatsApp, rental number for WhatsApp Business. Or two rental numbers if you want to keep both off your real cell entirely.
Does WhatsApp work on a UK or Netherlands rental number?
Yes — TwoLine is the only service in this guide that offers monthly rentals for UK and NL numbers. WhatsApp's filter behaves the same way regardless of country: physical-SIM-class routing passes, consumer VoIP gets banned. TwoLine's UK and NL routes survived 4/4 WhatsApp signups with the 7-day hold in my testing. 5sim also covers UK and NL on a per-code basis but as a one-shot only.
Will WhatsApp Business send the verification SMS to a Hushed number?
Most of the time, yes. Hushed sat at 3/4 in my testing for WhatsApp Business signup. The one failure was a number that was banned on day 4 — a route that had rotated back into a flagged segment. WhatsApp Business's signup flow uses the same SMS verification path as personal WhatsApp; the difference is at account level, not at SMS level.
Is it legal to use a rental number for WhatsApp?
Yes — there's no law against using a second number for WhatsApp. WhatsApp's terms forbid certain anti-spam patterns (mass-messaging strangers, using new numbers to circumvent an account suspension) but using a paid rental number for a legitimate WhatsApp Business or personal account is not a ToS violation. The legal question is not "can I use a rental number" but "what am I doing with the WhatsApp account once I have it."
What happens if I lose access to my rental number for a WhatsApp account?
WhatsApp's account recovery requires receiving a code on the original phone number. If you cancelled the rental and the number recycled to another user, you can't recover the account through the standard flow. WhatsApp Business has slightly more recovery options if you also enabled two-step verification with a recovery email. The pattern: enable two-step verification with a recovery email immediately after creating any WhatsApp account on a rental number.
The summary
Kavi's $12.99 mistake was renting from a free app for a WhatsApp Business number — exactly the route WhatsApp's filter is built to block. Don't make the same mistake.
- One-shot WhatsApp signup: VerifySMS at $0.42. Two minutes, Stripe checkout, auto-refund if no code.
- WhatsApp number for 1–12 months, US/UK/NL: TwoLine at $6.99–$11.99/mo. Multi-country, 15-minute refund window, 4/4 in this test.
- WhatsApp number for 5+ years, US/Canada, weekly use: Hushed lifetime at $99. Set a 90-day reminder.
- Regulated WhatsApp Business (compliance-adjacent): TextVerified per-rental for the explicit non-VoIP guarantee.
Three categories, four answers. Pick by what WhatsApp will actually do with the route, not by sticker price.
A note on TwoLine's age: I built TwoLine and it's six weeks old as of this writing. If you need 5+ year confidence in the provider's continued existence, Hushed (nine years operating history) is the safer bet. TwoLine's value is the multi-country coverage and the price; Hushed's value is the operating track record. Both are honest products targeting different parts of the WhatsApp second-number market.
About this article
Written by Serhat Doğan, founder of TwoLine. London-based software developer building SMS verification tools full-time since early 2026. Previously worked in consumer apps and digital infrastructure. Disclosure: I built TwoLine. I'm also part of the team building VerifySMS, a sister brand focused on pay-per-SMS verification. Both products show up in this guide because they fit two different sub-niches inside the WhatsApp second-number search — TwoLine for monthly multi-country rentals, VerifySMS for one-shot codes.
Methodology: 7 apps tested between April 1 and April 30, 2026. n=24 monthly-rental WhatsApp signup attempts across 6 services (4 attempts each), plus 4 single-code purchases against VerifySMS. Each successful signup held 7 days post-verification to catch retroactive bans. WhatsApp standard signup flow on Android; WhatsApp Business signup tested separately and behaves identically for the SMS step. Sample size is small per service — directional, not statistical. Pricing verified against each provider's published pricing page on April 28, 2026.
Last reviewed: May 4, 2026. Next review: June 4, 2026.