FlyNumber alternative: ZuteSIP compared with FlyNumber

Updated 2026-09-30 · By the ZuteSIP team (ZuteSIP Inc.)

Short answer: FlyNumber sells local, mobile and toll-free numbers in about 90 countries, with SIP credentials, forwarding to phones or VoIP providers and prepaid per-minute outgoing calls. ZuteSIP is an alternative with numbers in 181 countries, a flat price for every number, and outgoing minutes and SMS included each month, paid in stablecoins.

FlyNumber and ZuteSIP are closer to each other than most apps on this list: both hand you a number you can connect to SIP software. The differences are in coverage, what's included and how you pay.

What FlyNumber is

FlyNumber is a virtual phone number provider for making and receiving calls on any device. Its site says numbers are available in 90 countries, in local, mobile and toll-free types, and notes that some number types restrict outbound calling because of local regulations.

Calls can be routed through FlyNumber SIP with your own SIP credentials on up to 5 devices, forwarded to any mobile or landline, or sent to an existing VoIP provider. Incoming texts arrive in the panel's SMS inbox and by email; sending is available on select numbers at per-segment rates. FlyNumber states there are no contracts, incoming calls are included and outgoing calls are billed per minute from a prepaid balance, with numbers from $2.95 per month and discounts for longer billing periods (as of September 2026).

FlyNumber vs ZuteSIP at a glance

Feature	FlyNumber	ZuteSIP
Number countries	90 countries	181 countries
Number types	Local, mobile, toll-free	Mobile, local, toll-free
SIP credentials	Yes, on up to 5 devices	Yes, username and password per number
Forwarding	To phones or other VoIP providers	To any phone
Outgoing calls	Per minute from prepaid balance	1,000 minutes per month included
SMS	Incoming inbox and email; sending on select numbers per segment	Unlimited incoming, 500 outgoing per month included
Browser calling	Not listed on the page we checked	Built-in web dialer
Price	From $2.95/month, varies by number	From $1.80/month billed yearly, same for every number
Payment	Not specified on the page we checked	USDT or USDC only

When FlyNumber is the better choice

You mainly receive calls and want the lowest entry price for a single number.
You want to forward calls into an existing VoIP provider or cloud phone system rather than use a dialer.
You'd like to have incoming texts copied to your email.
You want monthly, quarterly or semi-annual billing periods rather than a yearly plan.

When ZuteSIP fits better

You need a country outside FlyNumber's list; ZuteSIP covers 181 countries.
You make regular outgoing calls and texts and prefer 1,000 minutes and 500 SMS per month included instead of metered usage.
You want sending SMS on every number and unlimited incoming SMS for verification codes.
You want a simple, predictable price that doesn't change by country or number type.
You want a browser web dialer that lets you pick any of your numbers as caller ID, and prefer paying in USDT or USDC.

Working out the real cost

FlyNumber's entry price is per number and outgoing calls draw on a prepaid balance, so the monthly cost depends on how much you call and text out. For numbers used mostly for inbound calls, that metered approach can be economical.

ZuteSIP bundles usage instead: from $1.80 per month billed yearly ($21.60 per year), with 1,000 outgoing minutes and 500 outgoing SMS per month and unlimited inbound calls and SMS. There is no setup fee or contract, and auto-renewal from your wallet comes with a 7-day grace period if a renewal can't be charged. If you are comparing several providers, our price comparison guide shows how to line up bundled and metered offers fairly.

Moving your setup to ZuteSIP

Sign up with an email address and pick your number from the catalogue.
Pay with USDT or USDC; most numbers are active within minutes.
Copy the SIP username and password from the number's page.
In your softphone or PBX, replace the old account with server sip.zutesipdialer.com, port 5060 for UDP or TCP, or 5061 for TLS.
Place a test call, check DTMF with an IVR, then update the published number on your website or listings.

SIP account example

Server/Domain: sip.zutesipdialer.com
Username: <SIP_USERNAME>
Password: <SIP_PASSWORD>
Transport: UDP or TCP 5060, TLS 5061
Codecs: G.711 u-law (PCMU), G.711 A-law (PCMA)
DTMF: RFC 2833 or SIP INFO
Caller ID: <YOUR_NUMBER>

Frequently asked questions

How many countries does FlyNumber cover?

Its site says 90 countries, as of September 2026. ZuteSIP offers numbers in 181 countries.

Are outgoing minutes included with ZuteSIP?

Yes. Each number includes 1,000 outgoing minutes and 500 outgoing SMS per month, plus unlimited incoming calls and SMS.

Can I use my ZuteSIP number in the same PBX I used with FlyNumber?

Yes, if the PBX is SIP-compliant. ZuteSIP works with Asterisk, FreePBX, 3CX, FusionPBX and others using digest authentication.

Can I port my FlyNumber number to ZuteSIP?

No. Number porting is not offered, so you would take a new ZuteSIP number.

Does ZuteSIP support encrypted calls?

Signalling can use TLS on port 5061. SRTP media encryption is not part of the service.

Sources

FlyNumber: Home page (as of September 2026)