Telnyx
performance benchmarks
Browse Telnyx's observed SMS API response time, error rates, and incident history over the last 90 days.
Live performance metrics
Real-world performance data from messages sent through Knock
| Message volume | Growth | Status page updates (30d) | Status page updates (90d) |
|---|---|---|---|
<1M | 3rd of 7 ↑ | 25 | 25 |
From February 13th to May 14th, Knock routed <1M messages through Telnyx. For adoption, Telnyx ranks 3rd of 7 providers based on new channel connections, with adoption accelerating over the period. Telnyx reported 25 status page updates over the last 90 days, 25 of which were in the last 30 days.
Response time
Response time measures how long Telnyx takes to accept an SMS API request from Knock, including connection overhead and any automatic retries. Lower values mean faster message hand-off.
| Median (p50) | p90 | p95 | p99 |
|---|---|---|---|
219ms | 389ms | 488ms | 638ms |
From February 13th to May 14th, Telnyx averaged a daily median response time (p50) of 219ms across all days in the range, meaning half of all SMS API requests on a typical day complete in under 219ms. The 99th percentile averaged 638ms, with a peak daily p99 of 19738ms. This is slightly higher than some providers, which may reflect additional processing Telnyx performs on message acceptance.
Error rate
Error rate tracks the ratio of 5xx responses and timeouts to total SMS API requests. Knock automatically retries failed requests, so transient provider errors rarely affect end-user delivery.
| Avg. daily error rate | Highest daily rate | Peak error date | Zero-error days | Days above 0.01% |
|---|---|---|---|---|
0.21% | 24.57% | Feb 20 | 57 | 26 |
From February 13th to May 14th, Telnyx averaged a 0.21% daily error rate for 5xx responses and timeouts, with the highest single-day error rate reaching 24.57%. This is slightly above average compared to other providers on Knock, though still within acceptable thresholds for production SMS delivery. Knock automatically retries failed requests, so transient provider errors rarely affect end-user delivery.
About these metrics: Data represents messages sent through Knock to Telnyx during the specified period. Response time measures time from Knock to provider acceptance. Error rate includes only provider 5xx responses and timeouts.
Recent Telnyx incidents
Recent status page incidents for Telnyx
Ongoing since May 28, 2026
THIS IS A SCHEDULED EVENT May 28, 09:00 - 11:00 UTCMay 11, 14:41 UTC Scheduled - Our Telephony Engineers will perform maintenance on our SIP proxy servers in the US region. Our TLS certificate for our SIP proxy server(s) of sip.telnyx.com (192.76.120.10 and 64.16.250.10) will be changed during this deployment. This is important for some customers who use an SBC (or other appliance) and have our certificate (or the CA certificate) loaded into the SBC. This information also applies to some custom
Ongoing since May 26, 2026
THIS IS A SCHEDULED EVENT May 26, 17:00 - 19:00 UTCMay 11, 14:32 UTC Scheduled - Our Telephony Engineers will perform maintenance on our SIP proxy servers in the Europe region. Our TLS certificate for our SIP proxy server(s) of sip.telnyx.eu (185.246.41.140 and 185.246.41.141) will be changed during this deployment. This is important for some customers who use an SBC (or other appliance) and have our certificate (or the CA certificate) loaded into the SBC. This information also applies to some
Ongoing since May 15, 2026
THIS IS A SCHEDULED EVENT May 15, 08:30 - 10:30 UTCMay 12, 16:23 UTC Scheduled - The Telnyx team will be performing maintenance on the network nodes carrying data traffic for IMSI1 sessions in the Americas. Connected devices may experienec a brief (about a minute) period of disconnection during this window.
Started May 14, 2026 — Resolved May 14, 2026
May 14, 13:00 UTC Completed - The scheduled maintenance has been completed.May 14, 12:30 UTC In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.May 14, 12:24 UTC Scheduled - Our Telephony Engineers will perform maintenance on our TeXML services in the Europe/US region. This maintenance should not disrupt service.
Ongoing since May 14, 2026
May 14, 11:03 UTC Identified - The issue partially persists and is being worked on by our engineers.May 14, 00:26 UTC Monitoring - A fix has been implemented and we are monitoring the results.May 13, 21:44 UTC Investigating - We've spotted that something has gone wrong. We're currently investigating the issue, and will provide an update soon. All cloud storage operations on buckets in us-central-1 might be not operational.
Pricing calculator
| Plan | Per message | Monthly cost |
|---|---|---|
| Pay-as-you-go | $0.004 | $400 |
No free tier. Outbound SMS to US numbers costs $0.004 per message. Inbound messages are $0.004 each. Phone numbers start at $1.00/month for local numbers. Carrier surcharges are passed through at cost with no markup.
US carrier surcharges
All US A2P SMS sent via 10DLC incurs mandatory carrier fees on top of the provider base rate. Most providers pass these through at cost.
| Carrier | Outbound SMS | Inbound SMS |
|---|---|---|
| T-Mobile | $0.0045 | $0.0025 |
| AT&T | $0.003 | $0.003 |
| Verizon | $0.004 | $0.00 |
| US Cellular | $0.005 | $0.00 |
Compare Telnyx with other providers
About Telnyx
Telnyx is a developer-first communications platform with competitive pricing and a private IP network for reliable SMS delivery.
Pros
- Among the lowest per-message rates for US domestic SMS
- Private IP network provides lower latency than providers using the public internet
- Transparent, pay-as-you-go pricing with no monthly minimums
- Strong developer experience with well-documented APIs and SDKs
Cons
- Smaller community and ecosystem compared to Twilio
- No free trial credits for new accounts
- Feature set is narrower than full-suite platforms like Twilio
Frequently asked questions
What is Telnyx?
Telnyx is an SMS provider commonly used for transactional sms notifications, two-factor authentication, appointment reminders. Telnyx is a developer-first communications platform with competitive pricing and a private IP network for reliable SMS delivery.
How much does Telnyx cost?
No free tier. Outbound SMS to US numbers costs $0.004 per message. Inbound messages are $0.004 each. Phone numbers start at $1.00/month for local numbers. Carrier surcharges are passed through at cost with no markup. Telnyx does not offer a permanent free tier.
How fast is Telnyx?
Based on real-world data from messages sent through Knock, Telnyx accepts SMS API requests with a median response time of 219ms (p50) and 638ms at the 99th percentile.
How reliable is Telnyx?
From February 13th to May 14th, Telnyx showed an error rate of 0.21% for 5xx responses and timeouts across <1M messages sent through Knock. Knock automatically retries failed requests, so transient provider errors rarely affect end-user delivery.
What are the pros and cons of Telnyx?
Key strengths include among the lowest per-message rates for us domestic sms and private ip network provides lower latency than providers using the public internet. On the other hand, smaller community and ecosystem compared to twilio and no free trial credits for new accounts.
Does Telnyx work with Knock?
Yes. Knock has a native Telnyx integration that enables you to send SMS notifications through Telnyx as part of a cross-channel workflow. You can combine Telnyx with other channels like in-app feeds, push, email, and Slack from a single API call.
Use Telnyx with Knock
Knock enables you to integrate Telnyx alongside other notification channels, manage templates, and orchestrate cross-channel workflows from a single platform.