# A2P SMS, OTP, and sender ID rules in the USA

> BroadNet delivers A2P SMS and OTP in the USA over direct connections to T-Mobile USA, AT&T, and Verizon, plus an operator-grade route to US Cellular, with FCC + CTIA sender ID registration in 7-14 business days (10DLC).

- Canonical URL: https://www.broadnet.me/coverage/united-states
- Language: en
- Last updated: 2026-10-21
- Publisher: BroadNet (https://www.broadnet.me)

10DLC and Toll-Free termination to T-Mobile, AT&T, and Verizon. Brand and Campaign registration via The Campaign Registry (TCR) handled inside the BroadNet console.

## Key facts

- Regulator: FCC + CTIA (Federal Communications Commission (FCC) and CTIA (carrier consortium))
- Dialling code: +1
- MCC: 310 – 316
- Mobile subscribers: 340M
- Sender-ID lead time: 7-14 business days (10DLC)
- Time to launch: Live in 8–19 business days from test-access request to production (set by the sender-ID lead time)
- Typical OTP latency: 2.2 s
- Typical delivery rate, operator-direct: 99.7%
- SMS price band: USD 0.0095 (indicative list rates, reviewed 2026-09-24)
- Billing currencies: USD

## Operators

| Operator | MNC | Route | Grade | A2P rate |
|---|---|---|---|---|
| T-Mobile USA | 310-260 | Direct | A+ | USD 0.0095 |
| AT&T | 310-410 | Direct | A+ | USD 0.0095 |
| Verizon | 311-480 | Direct | A+ | USD 0.0095 |
| US Cellular | 311-220 | Operator-grade | A | USD 0.0095 |

## Technical facts for the USA

Network codes, message lengths and sender-ID rules in one table. Segment lengths are the GSM standard values (3GPP TS 23.038).

| Technical facts | |
|---|---|
| Mobile country code (MCC) | 310 – 316 |
| Dialling code | +1 |
| Operators (MCC-MNC) | T-Mobile USA · 310-260; AT&T · 310-410; Verizon · 311-480; US Cellular · 311-220 |
| SMS length, GSM-7 (Latin alphabet) | 160 characters in a single SMS; 153 per part when concatenated |
| SMS length, UCS-2 (Arabic, Cyrillic and other scripts) | 70 characters in a single SMS; 67 per part when concatenated |
| Regulator | FCC + CTIA (Federal Communications Commission (FCC) and CTIA (carrier consortium)) |
| Sender-ID rules | 10DLC Brand vetting + Campaign registration via The Campaign Registry (TCR) for long codes. Toll-Free Verification via carrier-verified business profiles. Short codes leased + provisioned. |
| Sender-ID lead time | 7-14 business days (10DLC) |

## Pricing

| Band | Transactional | Promotional | Note |
|---|---|---|---|
| 10DLC · Standard | USD 0.0095 | USD 0.0132 | Vetted Brand + registered Campaign |
| 10DLC · Low-Volume | USD 0.0095 | USD 0.0132 | Up to 75K segments/day |
| Toll-Free | USD 0.0110 | USD 0.0150 | Verified TF — best for transactional |
| Short Code | USD 0.0095 | USD 0.0152 | Dedicated SC + $1k/month lease |

## Sender ID

10DLC Brand vetting + Campaign registration via The Campaign Registry (TCR) for long codes. Toll-Free Verification via carrier-verified business profiles. Short codes leased + provisioned.

Brand + Campaign registration with The Campaign Registry (TCR), filed through a campaign service provider; BroadNet coordinates it during onboarding.

## Rules

- **10DLC Brand + Campaign**: All A2P traffic on long codes must be registered with The Campaign Registry — Brand vetting + Campaign filing per use case. BroadNet manages submission.
- **Toll-Free Verification**: TF numbers require carrier-verified business profiles. Unverified traffic is filtered. BroadNet provides the verification package on onboarding.
- **TCPA + STOP keyword**: Telephone Consumer Protection Act enforces opt-in and HELP/STOP keyword handling on every send. Statutory damages start at $500/message.
- **SHAFT-C content rules**: Sex, Hate, Alcohol, Firearms, Tobacco, Cannabis — restricted across all US carriers. BroadNet's classifier flags before send.

## Compliance

TCPA enforced — opt-in, HELP/STOP keyword handling, statutory damages from $500/message. SHAFT-C content restricted across all US carriers.

## Sample A2P template

```text
BroadNet: your code is 384921. Reply HELP for help, STOP to opt out.
```

## Related

- https://www.broadnet.me/regulations/united-states
- https://www.broadnet.me/pricing/sms/united-states