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 January 2nd to April 2nd, Knock routed <1M messages through Telnyx. For adoption, Telnyx ranks 3rd of 7 providers based on new channel connections, with adoption slowing 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 |
|---|---|---|---|
275ms | 451ms | 508ms | 662ms |
From January 2nd to April 2nd, Telnyx averaged a daily median response time (p50) of 275ms across all days in the range, meaning half of all SMS API requests on a typical day complete in under 275ms. The 99th percentile averaged 662ms, 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% |
|---|---|---|---|---|
0.42% | 24.57% | Feb 20 | 57 | 34 |
From January 2nd to April 2nd, Telnyx averaged a 0.42% 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
Started Apr 3, 2026 — Resolved Apr 3, 2026
Apr 3, 10:39 UTC Resolved - This incident has been resolved.Apr 3, 09:45 UTC Monitoring - A fix has been implemented and we are monitoring the results.Apr 3, 09:03 UTC Investigating - We are aware of instability affecting our Wireless Products API endpoints. The incident began at approximately 08:25 UTC. Our engineering team is actively investigating the root cause. Further updates will be provided as information becomes available.
Started Apr 2, 2026 — Resolved Apr 2, 2026
Apr 2, 17:00 UTC Completed - The scheduled maintenance has been completed.Apr 2, 12:00 UTC In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.Apr 2, 11:12 UTC Scheduled - Engineering will run updates on voice services on all regions.
Ongoing since Apr 2, 2026
Apr 2, 13:00 UTC In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.Apr 2, 11:13 UTC Scheduled - Our Telephony Engineers will be performing an update on our Voice Services across all regions Impact: This update is not expected to disrupt service. Action Required: If you experience any audio issues or dropped calls during this maintenance window, please report them immediately to Telnyx Support.
Started Apr 2, 2026 — Resolved Apr 2, 2026
Apr 2, 05:30 UTC Completed - The scheduled maintenance has been completed.Apr 2, 04:30 UTC In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.Apr 1, 12:53 UTC Update - We will be undergoing scheduled maintenance during this time.Mar 25, 09:44 UTC Update - We will be undergoing scheduled maintenance during this time.Mar 31, 05:30 UTC Scheduled - The Telnyx Wireless teams will perform upgrades to mobile data infrastructure in the North America reg
Started Apr 1, 2026 — Resolved Apr 1, 2026
Apr 1, 14:00 UTC Completed - The scheduled maintenance has been completed.Mar 31, 18:30 UTC In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.Mar 31, 17:06 UTC Scheduled - Our Telephony Engineers will be performing an update on our Voice Services servers servers across all regions Impact: This update is not expected to disrupt service. Action Required: If you experience any audio issues or dropped calls during this maintenance window, please repo
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 275ms (p50) and 662ms at the 99th percentile.
How reliable is Telnyx?
From January 2nd to April 2nd, Telnyx showed an error rate of 0.42% 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.