Messaging Resources

Explore Isle of Man phone number formats (+44): validation, area codes (1624), and mobile prefixes (7624). Learn E.164 standards, regex for validation, and number portability nuances. Implement robust validation and avoid common pitfalls.

Bhutan phone number format (+975) explained: area codes, validation & dialing. Understand landline (2[3-6]XXXXXX), mobile (17[1-8]XXXXXX) patterns. Includes regex for validation and ITU-T E.164 compliance details.

Explore Bonaire, Sint Eustatius, and Saba phone number formats (+599): landline (7 digits) & mobile (9 digits). Includes number structure, dialing codes, and validation regex (^+599[1-9]\d{6}$ for landlines). TRA regulations and ITU-T E.164 compliance covered.

Andorra SMS guide covering best practices, compliance, and features. Understand message length rules (160 GSM-7/70 UCS-2 chars), alphanumeric sender IDs, and consent. Explore SMS API integrations (Twilio, Sinch) and sending restrictions; landlines unsupported, error code 21614.

Explore Nepal's SMS landscape: compliance, features, & technical details. Understand sender ID registration, encoding (GSM-7/UCS-2), & two-way SMS limitations. Learn about message concatenation, delivery best practices (8 AM-8 PM UTC+5:45), & API integrations. Avoid error 21614 sending SMS to landlines.

SMS guide for American Samoa: Understand compliance (TCPA, CAN-SPAM), features (concatenated SMS), & sending restrictions. Two-way SMS is unsupported. Use E.164 formatting (+1684). Adhere to UTC-11 time zone. Includes code examples for Twilio, Sinch, MessageBird, Plivo.

Explore Area Code 505's technical details, covering Albuquerque & northwestern NM. Understand 10-digit dialing, NANPA regulatory oversight, & the 988 transition. Covers Bernalillo County, Santa Fe, Farmington, Gallup. Learn about 1+10D toll calls and 0+10D operator calls. Originally served all of NM; split in 2007.

Area code 925 covers California's East Bay, including Antioch. This guide details its history (split from 510 in 1998), dialing (1+10 digits), & regulatory oversight (CPUC). Learn about mandatory 10-digit dialing post-2021 and available fiber optic options like OpenFiber.

Area code 405 serves central Oklahoma, including Oklahoma City. Explore its geographic boundaries (35.46756, -97.51643), regulatory details under NANPA, and history since 1947. Understand the 572 overlay requiring 10-digit dialing and supported services like VoIP.

Explore 2025 SMS API pricing in the Faroe Islands. Compare Twilio, Plivo, Sinch & Infobip rates (starting from $0.04508/SMS). Understand factors impacting costs: volume discounts, local carrier influence (Faroese Telecom), message length (160 chars), and A2P trends for optimized messaging strategies.

Explore South Korea SMS API pricing from providers like Twilio, Plivo, Sinch, & Infobip. Compare costs, features, & regulations. Discover pricing from $0.035 to $0.049/SMS. Learn about MSIT compliance, carrier agreements (SK Telecom, KT, LG U+), & volume discounts for optimal SMS strategies.

Explore Nigeria SMS pricing: Compare costs from Twilio ($0.0075), Plivo ($0.0055), Sinch ($0.388) & local operators (₦4/SMS). Analyze API providers, volume discounts, & features. Optimize SMS marketing strategy & understand NCC regulations for effective messaging.

Explore the Extensible Messaging and Presence Protocol (XMPP), a decentralized XML-based communication standard defined by RFC 6120 & 6121. Understand JIDs (localpart@domain/resource), stanzas (<message/>, <presence/>, <iq/>), TLS security, and XEP extensions like OMEMO for encryption. Perfect for developers.

Explore iPhone's RCS messaging via iOS 18, enabling high-quality media sharing and read receipts across platforms. Learn about automatic vs. manual activation. Understand SMS/MMS fallback, dual SIM support, and troubleshooting. Discover IMS status verification for carrier support.

This document outlines a commercial license agreement, detailing terms between Sent, Inc. and a subscriber. It covers service access, permitted use cases, and initial/renewal terms (e.g., auto-renewal after initial term with 30-day notice). Fees and special product terms are also specified.

Explore supplemental terms for SMS, Numbers, and AI Services. SMS requires recipient consent & compliance with telecom standards. Numbers can be reclaimed with 5 days' notice if unutilized. AI Services must be used ethically, adhering to data privacy laws; accuracy isn't guaranteed.

This Privacy Policy details data collection, storage, and usage practices. Learn how 'Sent, Inc.' processes personal data, including identifiers like email addresses and IP addresses. Discover data retention policies, cookie usage (including tracking pixels), and data protection measures. Opt-out instructions included.

Lookup phone number details using this API, including carrier, fraud risk, & portability status. Supports E.164 format (+12345678900). API rate limit: 15 requests/60 seconds. Returns MCC, MNC, LRN, & ported status.

Understand SMS compliance: TCPA, GDPR, CTIA. Learn express consent rules, opt-in/out, & content guidelines. Avoid $1500/violation fines. Ensure explicit consent & data protection.