What is the cheapest way to get a second phone number?

The cheapest reliable option is a virtual business number rather than a second SIM or carrier add-on, since those usually require a device slot and a contract. g100.us offers numbers starting around $4/week or $6/month across 100+ countries, with calls, SMS, and WhatsApp included in one flat price and no contract required.

Can I get a US phone number if I live outside the US?

Yes. g100.us lets you activate a US number from anywhere in the world, including India, the UK, the UAE, or Canada, alongside numbers in 100+ other countries. This is useful if you're serving US customers, need a recognizable US area code, or simply prefer a US-based line while living abroad.

Does a second number from g100.us work with WhatsApp?

Yes. Any g100.us number can be connected to WhatsApp through a one-click setup process, so the same number handling your calls and SMS also runs your WhatsApp business messaging. There's no need to juggle a separate WhatsApp Business account or a second physical SIM.

How quickly does a new number activate?

Numbers on g100.us activate instantly — typically live within seconds of completing sign-up through the app.g100.us dashboard. There's no waiting on porting, provisioning, or an onboarding call before you can start making calls or sending texts.

Do I need a second SIM card or phone to use g100.us?

No physical SIM is required. g100.us numbers work through the browser using the Chrome extension, or through the ChatLine mobile app on Android and iOS, so you can make and receive calls and texts from a device you already own without swapping SIM cards.

Is g100.us cheaper than a carrier's second-line add-on?

In most cases, yes, and it covers more. Carrier add-on lines typically lock you into a contract and only cover calls and SMS, with WhatsApp still running through your personal account. g100.us bundles calls, SMS, and WhatsApp into one flat-priced number with no contract, starting around $4/week.

Can I receive SMS and OTP codes on a g100.us number?

Yes. g100.us numbers receive SMS and one-time passwords or verification codes instantly, just like a personal line would. This makes it practical for signing up to services, verifying accounts, or handling customer texts without exposing your real personal number.

Is g100.us suitable for a small team, not just one person?

Yes. Because pricing stays flat rather than scaling per seat, small teams can pick up multiple g100.us numbers for different roles or departments without paying enterprise phone-system rates. Each number still comes with the same calls, SMS, and WhatsApp bundle and instant activation.

What's the difference between a weekly and monthly g100.us plan?

Weekly plans (from about $4) suit short-term or trial use, such as testing a number before committing further. Monthly plans (from about $6) suit ongoing use, and longer 3-, 6-, or 12-month terms are available for a dedicated number you plan to keep long-term, typically at a better effective rate.

Can I use g100.us to keep my personal number private?

Yes, that's one of the most common reasons people sign up. A g100.us number lets you give out a professional line for business, sales, classifieds, or client work while keeping your personal number reserved for family and friends, with calls and texts routed separately from day one.

Low-Cost Second Number: The g100.us Breakdown

Q: Is there a long-term contract with g100.us?

No. g100.us runs on flat, low pricing with a pay-as-you-go wallet option for flexible use, or 3-, 6-, and 12-month terms if you want a dedicated long-term number at a locked-in rate. Either way, there's no enterprise-style contract or per-seat licensing to commit to.

The cheapest second phone number is the one that does more than just ring — it answers calls, catches texts, and holds a WhatsApp conversation, all without a second SIM card or a second monthly bill that rivals your rent. If you're searching for a low cost second number, the honest short answer is this: g100.us gives you a real business number in 100+ countries starting around $4/week or $6/month, with calls, SMS, and WhatsApp bundled into one dashboard, activated in seconds. No contract. No per-seat enterprise pricing. No hardware. That's the answer. Everything below is the reasoning — why "low cost" so rarely means what it promises in this category, and why the math changes once calls, texts, and WhatsApp stop living in three different apps.

Why "low cost" and "second number" almost never go together

Search for a second phone number and you'll land in one of two worlds. On one side are carrier add-on lines — a second SIM tacked onto your existing plan, usually requiring a contract, a device slot, and a price that only looks small until you notice it's recurring for a number you use twice a week. On the other side are legacy business-communications platforms built for call centers: per-seat licensing, minimum user counts, setup calls, and a feature set built for a 50-person sales floor, not a freelancer who just needs to stop giving out a personal cell number.

Neither is actually low cost once you account for what you're paying for versus what you need. A second number for freelancing, client calls, online selling, dating-app safety, or keeping work separate from life doesn't need a phone system — it needs a number that works from a browser or a phone, handles the channels people actually message on, and doesn't punish you for not using it every day.

What you actually get with g100.us

g100.us was built around a simple premise: a business number shouldn't cost more than the thing it protects. Here's what that looks like in practice.

One number, three channels

Instead of juggling a calling app, a separate SMS app, and a personal WhatsApp account bleeding into your business life, a single g100.us number handles calls, SMS, and WhatsApp from one dashboard. Connecting the number to WhatsApp is a one-click setup — no separate business verification maze to walk through on your own.

100+ countries, including US numbers from anywhere

You can pick up a local-feeling number in more than 100 countries, or grab a US number while you're sitting in India, the UK, the UAE, or Canada. That matters if you're selling to a US audience, need a number that feels local to American customers, or simply want the credibility of a recognizable area code without relocating.

Browser and mobile, your choice

Make and receive calls and texts straight from the browser using the g100.us Chrome extension when you're at a desk, or switch to the ChatLine mobile app on Android and iOS when you're out. The number follows you — it doesn't lock you to one device the way a physical second SIM does.

OTP and verification codes, instantly

Signing up for a service, verifying an account, or receiving a one-time password doesn't require you to expose your real number. SMS and OTP codes land instantly on your g100.us number, the same way they would on any personal line.

Live in seconds

There's no provisioning delay, no waiting on a porting request, no onboarding call. Numbers activate instantly, so the gap between "I need a second number today" and actually having one is measured in seconds, not business days.

The actual pricing — and why flat beats tiered

This is where "low cost" stops being marketing language and becomes a number you can check. Numbers on g100.us start from roughly $4/week or $6/month, and that pricing holds steady across most countries rather than spiking for "premium" regions the way some competitors quietly do. You can commit to 3-, 6-, or 12-month terms if you want a dedicated long-term number at a locked-in rate, or run everything through a pay-as-you-go wallet if your needs are lighter or seasonal.

There's no long-term contract forcing your hand, and there's no per-seat enterprise pricing model tacking on cost for every teammate who needs access. You pay for the number and the usage, not for a license tier designed around headcount you don't have.

How g100.us compares

Stack g100.us against the two common alternatives and the gap is less about any single feature and more about friction — how much you have to pay, learn, and commit to before the number actually helps you.

Vs. carrier second-SIM plans: carrier add-ons typically require a device slot, tie you to a contract, and cover calls and SMS only — WhatsApp still runs through your personal account. A g100.us number is channel-complete (calls + SMS + WhatsApp) and works without a second SIM at all.
Vs. legacy business phone systems: traditional providers in this space are generally built for larger teams, with per-seat pricing, more setup complexity, and higher baseline monthly costs that assume enterprise usage. g100.us keeps the pricing flat and the setup to minutes, which fits solo users and small teams far better than a system sized for a call center.
Vs. free or ad-supported number apps: "free" numbers often come with limited countries, unreliable SMS delivery, or numbers that get recycled. g100.us trades that unpredictability for a small, transparent flat fee and numbers across 100+ countries, including genuine US numbers usable from anywhere.

The pattern across all three comparisons is the same: other options make you choose between low cost and full functionality. g100.us is built so you don't have to.

Who actually needs this

A low-cost second number earns its keep fastest in a handful of everyday situations:

Freelancers and consultants who want a professional line without exposing a personal cell number to every client.
Online sellers and small business owners who need a dedicated number for customer calls, texts, and WhatsApp orders.
Remote workers and digital nomads who want a US or home-country number while living or traveling abroad.
Anyone who wants to keep a personal number private — for classifieds, dating apps, rentals, or simply a cleaner work-life boundary.
Small teams that need a shared or dedicated business line without buying into an enterprise phone system.

Getting started

The whole point of a low-cost second number is that setting it up shouldn't feel like a project. Head to g100.us, pick a country and number, choose weekly, monthly, or a longer term, and the number is live within seconds through the app.g100.us dashboard. From there, connect WhatsApp with one click, install the Chrome extension for desktop use, or grab the ChatLine app for mobile — and you're taking calls and texts on a number that isn't tied to your personal identity.

The bottom line

"Low cost second number" is a search people make when they've already tried the obvious options and found them either too expensive, too limited, or too complicated for what they actually need. g100.us earns the phrase honestly: flat pricing from about $4/week, instant activation, 100+ countries, and calls, SMS, and WhatsApp unified in one number instead of scattered across three apps. For anyone who just wants a real business number without the real business phone-system price tag, that's the version of "low cost" worth paying for.