Flowroute

5.9easy start · #12 of 30
in SIP Trunking Providers

Free to practise onnot on record
Free trialnot on record
Well documentedyes
Runs where you worknot on record

Runs on api, Web.

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Flowroute is ranked #12 of 30 in SIP trunking providers on The Geeks Club. It runs on API, Web. There is no free plan.

Flowroute plans and pricing

All plans

Metered usage Not published Pay-as-you-go; rates vary by service and usage Domestic inbound from $0.005/minute · US lower 48 & Canada outbound from $0.00833/minute · Usage-based SMS, MMS, and number charges flowroute.com · 30 Sept 2026

Compared on SIP trunking providers

Free plan: No
Pricing model: hybrid
Number porting: Yes
Emergency calling: Yes
Toll-free numbers: Yes
Encrypted signaling: Yes

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The record

Product: Flowroute provides cloud-based SIP trunking, voice and messaging APIs, phone numbers, faxing, and call forwarding.
Resiliency: Its patented HyperNetwork dynamically routes inbound DID numbers to support business continuity.
Calling: The service connects existing PBX systems or telephone adapters for inbound and outbound calls.
Messaging: Its APIs support SMS and MMS, including customizable routing through webhooks and message detail records.
Number management: The Numbers API can search for and purchase US and Canadian numbers, manage inbound routes, and automate E911 and CNAM setup.
Integrations: Flowroute identifies FreeSWITCH as a certified service provider integration and describes compatibility with FreeSWITCH systems.
Fraud protection: Account controls include IP-based outbound authentication, maximum outbound rate limits, and destination blacklists and whitelists.
Support: Flowroute offers free, non-tiered support, with phone support 13 hours a day Monday through Friday and email ticket responses every day.
Pricing limits: The pricing page says additional fees and surcharges apply to SMS and MMS, and outbound call rates vary by country.
Intended users: Flowroute describes its platform as suited to businesses, developers and CPaaS providers, and dealers and partners; its call-center page also targets contact centers.
Free account: Flowroute says users can create a free Manage portal account for service ordering, number porting, and service management.
Founded: 2007
Headquarters: Seattle, Washington, United States

Where it ranks on The Geeks Club

Best SIP Trunking Providers in 2026#12 of 30

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Sources

flowroute.com· checked 30 Sept 2026
flowroute.com/api-docs/· checked 30 Sept 2026
flowroute.com/solutions/pbx-and-phone-systems/freeswi· checked 30 Sept 2026
flowroute.com/callcenters/· checked 30 Sept 2026
flowroute.com/pricing-details/· checked 30 Sept 2026
flowroute.com/contact-us/· checked 30 Sept 2026