> ## Documentation Index
> Fetch the complete documentation index at: https://developers.telnyx.com/llms.txt
> Use this file to discover all available pages before exploring further.
# 10DLC Rate Limits & Throughput
> Understand AT&T and T-Mobile 10DLC rate limits by vetting score, campaign type, and carrier. Optimize your brand score for higher throughput.
Your 10DLC throughput is determined by your **brand vetting score** and **campaign type**. Each carrier (AT\&T, T-Mobile, Verizon) applies different rate limits. Understanding these limits helps you plan capacity and optimize for higher throughput.
***
## AT\&T throughput
AT\&T assigns throughput per campaign based on a **Message Class**, determined by your use case type and vetting score.
| Message Class | Use Case | Vetting Score | SMS TPM | MMS TPM |
| ------------- | -------------------------- | ------------- | ------- | ------- |
| A | Standard (Dedicated) | 75-100 | 4,500 | 2,400 |
| B | Standard (Mixed/Marketing) | 75-100 | 4,500 | 2,400 |
| C | Standard (Dedicated) | 50-74 | 2,400 | 1,200 |
| D | Standard (Mixed/Marketing) | 50-74 | 2,400 | 1,200 |
| E | Standard (Dedicated) | 1-49 | 240 | 150 |
| F | Standard (Mixed/Marketing) | 1-49 | 240 | 150 |
| T | Low Volume Mixed | Any | 75 | 50 |
| W | Sole Proprietor | N/A | 15 | 50 |
**Special use cases** (fixed throughput regardless of vetting score):
| Message Class | Use Case | SMS TPM | MMS TPM |
| ------------- | -------------------------------- | ------- | ------- |
| K | Political | 4,500 | 2,400 |
| P | Charity / Nonprofit | 2,400 | 1,200 |
| S | Social | 9,000 | 2,400 |
| X | Emergency / Public Safety | 4,500 | 2,400 |
| G | Proxy (per number) | 60 | 50 |
| N | Agents & Franchises (per number) | 60 | 50 |
**TPM = Throughput Per Minute.** AT\&T measures throughput in messages per minute, not per second. To convert: 4,500 TPM ≈ 75 MPS.
***
## T-Mobile throughput
T-Mobile uses **daily message caps** at the brand level, shared across all campaigns under that brand.
| Brand Tier | Vetting Score | Daily SMS Cap |
| --------------- | ------------- | ------------- |
| Top | 75-100 | 200,000 |
| High | 50-74 | 40,000 |
| Medium | 25-49 | 10,000 |
| Basic | 1-24 | 2,000 |
| Sole Proprietor | N/A | 1,000 |
T-Mobile caps are **per brand**, not per campaign. If you have 3 campaigns under one brand, they share the same daily cap. Plan accordingly for high-volume use cases.
Unvetted brands default to the **Basic** tier (2,000/day) unless the business is listed on the Russell 3000 index.
***
## Verizon throughput
Verizon has not published specific throughput numbers for 10DLC. They use content-based filtering rather than explicit rate limits. Messages that comply with your registered campaign use case are generally delivered without throttling.
***
## Vetting score impact
Your brand's vetting score (0-100) is the single most important factor in determining throughput:
```mermaid theme={null}
graph LR
A[Register Brand] --> B[Request Vetting]
B --> C{Score?}
C -->|75-100| D[Top Tier
Highest throughput]
C -->|50-74| E[Mid Tier
Moderate throughput]
C -->|1-49| F[Low Tier
Limited throughput]
C -->|Unvetted| G[Basic
Minimum throughput]
```
| Score Range | AT\&T SMS TPM | T-Mobile Daily Cap | Recommendation |
| ----------- | ------------- | ------------------ | -------------------------------------- |
| 75-100 | 4,500 | 200,000 | ✅ Ideal for production |
| 50-74 | 2,400 | 40,000 | ⚠️ Adequate for moderate volume |
| 25-49 | 240 | 10,000 | ⚠️ Limited — consider enhanced vetting |
| 1-24 | 240 | 2,000 | ❌ Very limited — improve score |
| Unvetted | 240 | 2,000 | ❌ Get vetted immediately |
***
## Check your brand and campaign scores
```bash curl theme={null}
# Get brand details including vetting score
curl -s https://api.telnyx.com/v2/10dlc/brand/{brandId} \
-H "Authorization: Bearer YOUR_API_KEY" | jq '{
brandId: .data.brandId,
displayName: .data.displayName,
identityStatus: .data.identityStatus,
vettingScore: .data.vettingScore
}'
# List campaigns with throughput info
curl -s https://api.telnyx.com/v2/10dlc/campaign \
-H "Authorization: Bearer YOUR_API_KEY" | jq '.data[] | {
campaignId: .campaignId,
usecase: .usecase,
attMsgClass: .attMsgClass,
attTpm: .attTpm,
tMobileBrandTier: .tMobileBrandTier
}'
```
```python Python theme={null}
import os
import requests
API_KEY = os.environ.get("TELNYX_API_KEY")
headers = {"Authorization": f"Bearer {API_KEY}"}
# Check brand vetting score
brand_id = "your_brand_id"
response = requests.get(
f"https://api.telnyx.com/v2/10dlc/brand/{brand_id}",
headers=headers,
)
brand = response.json()["data"]
print(f"Brand: {brand['displayName']}")
print(f"Vetting Score: {brand.get('vettingScore', 'Not vetted')}")
print(f"Identity Status: {brand['identityStatus']}")
# Check campaign throughput
response = requests.get(
"https://api.telnyx.com/v2/10dlc/campaign",
headers=headers,
)
for campaign in response.json()["data"]:
print(f"\nCampaign: {campaign['campaignId']}")
print(f" Use Case: {campaign['usecase']}")
print(f" AT&T Class: {campaign.get('attMsgClass', 'N/A')}")
```
```javascript Node theme={null}
const axios = require('axios');
const headers = {
Authorization: `Bearer ${process.env.TELNYX_API_KEY}`,
};
// Check brand vetting score
const brandId = 'your_brand_id';
const brand = await axios.get(
`https://api.telnyx.com/v2/10dlc/brand/${brandId}`,
{ headers }
);
console.log(`Brand: ${brand.data.data.displayName}`);
console.log(`Vetting Score: ${brand.data.data.vettingScore ?? 'Not vetted'}`);
// Check campaigns
const campaigns = await axios.get(
'https://api.telnyx.com/v2/10dlc/campaign',
{ headers }
);
campaigns.data.data.forEach(c => {
console.log(`\nCampaign: ${c.campaignId} (${c.usecase})`);
console.log(` AT&T Class: ${c.attMsgClass ?? 'N/A'}`);
});
```
***
## Maximize your throughput
The most impactful action. Ensure before vetting:
* **Website is live** and matches your brand information
* **EIN matches** your legal business name exactly (IRS records)
* **Phone number** is findable via Google for your business
* **Email domain** matches your website domain
* **Business address** is verifiable
Some use cases have higher default throughput:
* **Social** campaigns get 9,000 TPM on AT\&T
* **Political** and **Emergency** get 4,500 TPM
* **Mixed** campaigns work for most businesses
Don't misrepresent your use case — carriers audit campaigns.
If your initial score is below 75, consider requesting enhanced vetting for a more thorough review. Contact [Telnyx support](mailto:support@telnyx.com) for guidance.
Assign multiple phone numbers to your campaign. While per-campaign limits still apply, distributing across numbers helps with carrier-level delivery patterns.
Track delivery rates via [Message Detail Records](/docs/messaging/messages/message-detail-records/index). High error rates may indicate you're hitting limits. Adjust sending patterns accordingly.
***
## Compliance checklist
Carriers can reduce your throughput or reject campaigns that don't follow these guidelines:
| Requirement | Details |
| -------------------------------- | ----------------------------------------------- |
| ✅ Website domain = email domain | `admin@acme.com` + `acme.com` |
| ✅ Company name matches website | Consistent branding across registration |
| ✅ Clear opt-in on website | SMS consent checkbox visible near submit button |
| ✅ Detailed campaign description | Specific, not vague or generic |
| ✅ Sample messages match use case | Realistic and representative |
| ✅ No disallowed content | No SHAFT, cannabis, payday lending, sweepstakes |
| ✅ Opt-out language in messages | Include "Reply STOP to unsubscribe" |
### Disallowed use cases
The following use cases will be rejected or result in very low throughput:
* Unsolicited messaging (cold outreach, lead generation spam)
* Non-direct lending (3rd party auto loans, payday loans)
* Indirect debt collection
* Cannabis or CBD marketing
* Gambling (unless licensed)
* SHAFT content (Sex, Hate, Alcohol, Firearms, Tobacco)
* Sweepstakes and "free giveaway" campaigns
***
## Related resources
Register your brand and campaign for 10DLC messaging.
Receive webhooks for brand vetting and campaign status changes.
General messaging rate limits for all sender types.
Track delivery rates and identify throughput issues.