01 — Regulations
Domestic vs International
Requirements differ by who is sending. Pick the scope that matches your business.
Registration is not required for Puerto Rico — traffic can be sent directly through wholesale routing.
Sender capabilities
Alphanumeric Sender IDNot supported
Short codeNot supported
Long numericSupported
Sender formatLong Code
Approval timeInstant
FeesNo Fees
ScopeDomestic company
Registration requirements
Registration requiredNo
Restrictions
Other Scams
Regulatory
Phishing
Explicit Content
Sending rules
URL restrictionsNo
OTPNo
Opt-out mandatoryNo
Allowed hours (Mon–Fri)N/A
02 — Operators
Operator regulations
1 network carry SMS traffic in Puerto Rico. MNP is live in most markets — run an HLR lookup before routing.
Puerto Rico Telephone Company Inc. (PRTC)MCC 330 · Registration not required
03 — Compliance
Additional compliance notes
Country & operator-specific guidance maintained by the Sender ID team.
Requirements
Sender ID, Company Name, Company URL,Type of traffic,Content sample, Company HQ.Estimated monthly volumume
Required documents
N/A
Need help registering your Sender ID?
Our compliance specialists assist with registration requirements, document review, operator approvals, and both domestic and international onboarding.
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