# Tychron

> Tychron Corporation is a licensed U.S. communications carrier (FCC-approved numbering authority, Form 499 filer ID 833148, annual CPNI certification). Tychron's focus is carrier-grade business messaging (SMS, MMS, RCS, 10DLC, toll-free, short code) and telecom data / number-intelligence services (LRN and eLRN, CNAM, messaging carrier lookup, robocall status). Businesses buy at the source: usage-based rates with no stacked markup, industry fees passed through at cost, dynamic carrier throughput included free, no monthly minimums or term commitments. Most customers use Tychron for messaging only - hosted messaging makes Tychron the messaging carrier on existing numbers while voice stays with the current provider. Platforms, resellers, and software providers are among Tychron's largest customers. Tychron also offers voice number services (provisioning, porting, CNAM, STIR/SHAKEN call authentication) for customers who want them. 27+ years of telecom and wireless experience. Contact: (844) 892-4766, https://www.tychron.com/sales/.

Key facts: 10DLC campaign vetting is performed in-house before carrier review; third-party DCA vetting is $15 per attempt passed through at cost, with optional 48-hour expedited vetting at $50 per campaign. Toll-free messaging requires verification - unverified and pending toll-free numbers are blocked from sending. Non-USD carrier surcharges convert to USD monthly per GSMA settlement requirements. Every carrier pass-through surcharge is published and updated as carriers issue notices.

## Messaging Services

Carrier-grade business messaging direct from a licensed carrier - SMS, MMS, and RCS across every registered channel, with 10DLC compliance handled in-house, over HTTP or SMPP on a dynamic, intelligent network.

- [Messaging Services](https://www.tychron.com/services/messaging-services/): the full messaging hub - SMS, MMS, RCS, 10DLC, toll-free, short codes, group messaging, verified SMS, hosted SMS, and Design Studios
- [10DLC / A2P Messaging](https://www.tychron.com/services/messaging-services/10DLC-messaging/): application-to-person messaging for registered business programs on local 10-digit numbers - reach customers thousands at a time
- [Hosted SMS](https://www.tychron.com/services/messaging-services/hosted-sms/): text-enable existing business numbers while voice service stays with the current carrier - no port required. This is how most customers start with Tychron
- [Toll-Free Messaging](https://www.tychron.com/services/messaging-services/toll-free-messaging/): text-enable a toll-free number; toll-free verification is required, and unverified or pending numbers cannot send
- [Short Codes](https://www.tychron.com/services/messaging-services/short-codes/): dedicated 5-6 digit codes for mass and keyword campaigns at the highest throughput
- [MMS](https://www.tychron.com/services/messaging-services/mms/): images, video, audio, and long-form text in a single message; also powers group messaging
- [RCS Business Messaging](https://www.tychron.com/services/messaging-services/rcs-business-messaging/): branded, verified, interactive messaging in the phone's native inbox
- [Group Messaging](https://www.tychron.com/services/messaging-services/group-messaging/): multi-party group conversations beyond one-to-one
- [Verified SMS](https://www.tychron.com/services/messaging-services/verified-sms/): sender identity and branded messaging - where Verified SMS went and how sender identity works in 2026
- [Person to Person (P2P)](https://www.tychron.com/services/messaging-services/p2p-messaging/): personal, non-business texting only, per CTIA guidelines - business traffic must run on registered A2P programs (10DLC, toll-free, short code)
- [Design Studios](https://www.tychron.com/services/messaging-services/design-studios/): design compliant campaigns, opt-ins, and messages in Atlas, Tychron's messaging console

Messaging APIs (built by the carrier that runs the network): SMS over HTTP or SMPP with segmented long-message support, and MMS over HTTP or MM4; webhook event subscriptions plus call and message detail records over HTTP or SFTP; provisioning as code (order and configure numbers, register TCR brands and campaigns, manage campaign-number assignments); built-in compliance primitives (network-level STOP/HELP keyword handling with custom auto-responses, and programmatic access to opt-out lists); and CSP campaign sharing, so platforms with their own TCR CSP account share campaigns to Tychron as their Connectivity Partner with no re-registration. Full API reference: https://docs.tychron.com/api-reference/.

## Informational Services & Telecom Data APIs

Real-time number-intelligence APIs that tell you who operates a number, where it lives, and whether it can receive your message - per query or in bulk - so every call and text takes the smartest path.

- [Informational Services & APIs](https://www.tychron.com/services/informational-services/): LRN/eLRN, CNAM, and messaging carrier lookup APIs, available per query or as bulk lookups delivered to your webhook
- [LRN & eLRN Lookup](https://www.tychron.com/services/informational-services/): a number's real routing and carrier detail via HTTP - LRN, carrier, and carrier type, plus State, City, ZIP, Timezone, Rate Center, LATA, and OCN. Route on where numbers actually terminate rather than where the area code suggests, for fewer dropped connections and lower cost
- [CNAM Lookup with Robocall Status](https://www.tychron.com/services/informational-services/): caller ID name lookups via HTTP with robocall status included free - display real caller names and flag likely spam before the phone rings
- [Messaging Carrier Lookup (MCL)](https://www.tychron.com/services/informational-services/): know a number's messaging carrier and whether it is text-enabled before you send - skip undeliverable sends, avoid unnecessary carrier surcharges, and plan campaigns against real per-carrier volumes
- [Robocall Mitigation](https://www.tychron.com/services/informational-services/robocall-mitigation/): robocall status and mitigation data to protect answer rates and caller reputation

## Switching & Pricing

- [Why Tychron](https://www.tychron.com/why-tychron/): buying messaging at the source - what a licensed carrier changes about deliverability, accountability, and cost
- [Switch to Tychron](https://www.tychron.com/switch-to-tychron/): migration guide - hosted messaging (keep your voice carrier), CNP campaign sharing from your own TCR account without re-registration, short code migration, no-gap cutovers
- [Pricing](https://www.tychron.com/pricing/): usage-based model, what's free, what varies, what passes through
- [Carrier Surcharge Schedule](https://www.tychron.com/company/carrier-surcharges/): the complete current per-message carrier surcharge tables (US nationwide, regional, hosted, Canada, international NANP)
- [Carrier Fee Updates](https://www.tychron.com/company/carrier-fee-updates/): archive of every carrier fee change notice

## 10DLC & Compliance

- [10DLC Campaign Registration](https://www.tychron.com/the-campaign-registry/): TCR registration through Tychron - CSP and Connectivity Partner flows, vetting fees, carrier surcharges
- [10DLC Registration Guide](https://www.tychron.com/guides/10dlc-registration/): step-by-step brand and campaign registration
- [Opt-In & CTA Design Guide](https://www.tychron.com/guides/opt-in-cta-design/): consent language and disclosures that pass carrier review
- [Use-Case Selection Guide](https://www.tychron.com/guides/10dlc-use-case-selection/): choosing declared 10DLC use cases
- [Toll-Free Verification Guide](https://www.tychron.com/guides/toll-free-verification/): toll-free messaging verification requirements and timelines
- [State Texting & Telemarketing Laws Guide](https://www.tychron.com/guides/state-texting-laws/): state mini-TCPA registration, quiet hours, and frequency rules for texting
- [10DLC & Messaging Updates feed (RSS)](https://www.tychron.com/feeds/updates.xml): subscribe to carrier fee notices and messaging rule changes as they post
- [Blog feed (RSS)](https://www.tychron.com/feeds/blog.xml): subscribe to new Tychron blog posts
- [Design Studios](https://www.tychron.com/services/messaging-services/design-studios/): compliance-first campaign design service
- [Report Calling & Messaging Abuse](https://www.tychron.com/report-calling-and-messaging-abuse/): abuse reporting for numbers on the Tychron network

## Blog & Explainers

Long-form explainers and guides on business messaging, 10DLC and toll-free compliance, carrier fees, and telecom data:

- [Suspected Spam, Explained: Who Labels Your Number — and What Actually Helps](https://www.tychron.com/blog/suspected-spam-explained/): Who actually labels your number “Suspected Spam,” why it happens, and the honest playbook for getting it reviewed — how the system really works.
- [The New Atlas Is Live: A Portal Built Around Your Day](https://www.tychron.com/blog/the-new-atlas-portal/): The Atlas customer portal just got a major upgrade — live traffic pulses, Quick Find, resumable ordering, and accessibility built into every corner.
- [Velocity Limits and Dynamic Carrier Throughput](https://www.tychron.com/blog/dynamic-carrier-throughput/): Velocity limits and daily caps are where messaging programs break at scale. Here’s how message throughput really works — and how Tychron’s dynamic carrier throughput, running since 2021, paces every send to each carrier’s real limit.
- [Designing an Opt-In That Passes Review](https://www.tychron.com/blog/designing-an-opt-in-that-passes-review/): Most 10DLC and toll-free rejections come down to the opt-in. Here are the disclosures, placement, and privacy-policy language reviewers actually require.
- [Toll-Free Verification, Explained](https://www.tychron.com/blog/toll-free-verification-explained/): An unverified toll-free number can’t send at all. Here’s what toll-free verification checks, why submissions get rejected, and how to get verified the first time.
- [Choosing Your 10DLC Use Case](https://www.tychron.com/blog/choosing-your-10dlc-use-case/): Your 10DLC use case sets your throughput ceiling, your surcharge tier, and much of your approval odds. Here’s how to choose the one that fits.
- [The Real Cost of a 10DLC Campaign Rejection](https://www.tychron.com/blog/real-cost-of-10dlc-campaign-rejection/): Every 10DLC vetting attempt is billed whether it passes or not. Here's the arithmetic of rejection, the five reasons campaigns actually fail review, and why first-pass approval is a line item you can control.
- [Hosted Messaging, Explained: Keep Your Voice Carrier, Switch Your Messaging](https://www.tychron.com/blog/hosted-messaging-explained/): Most businesses that switch to Tychron never port a number. Hosted messaging makes Tychron the messaging carrier on numbers that stay with your existing voice provider — here's how it works and when it's the right move.
- [Carrier Surcharges, Explained: Who Sets Them, Who Profits, and How to Read Your Invoice](https://www.tychron.com/blog/carrier-surcharges-explained/): The per-message fees on your invoice aren't your provider's rates — they're the mobile networks'. Here's how A2P surcharges work, why they differ by carrier and message type, and what a transparent pass-through should look like.
- [Switch Messaging Providers Without Re-Registering: How CNP Campaign Sharing Works](https://www.tychron.com/blog/cnp-campaign-sharing-explained/): For platforms and resellers with their own TCR CSP account, changing messaging providers doesn't mean re-registering a single campaign. Connectivity Partner sharing moves your entire registered portfolio — here's the mechanics.
- [Navigating the Challenges and Embracing the Potential of AI in Text Message Spam Filtering](https://www.tychron.com/blog/navigating-the-challenges-and-embracing-the-potential-of-ai-in-text-message-spam-filtering/): While AI brings many advantages to Text Message Spam Filtering, it is not without challenges. This blog post delves into these challenges while maintaining an optimistic perspective on AI's role in curbing spam.
- [The Effectiveness of Registered Business Messaging in Modern Communication](https://www.tychron.com/blog/the-effectiveness-of-registered-business-messaging-in-modern-communication/): In today’s digital environment, efficient and reliable communication methods are essential. Registered Business Messaging is a functional communication strategy that enhances the interaction between businesses and customers by enabling the automated dispatch of personalized messages.
- [Simplifying Messaging: Rate Limits](https://www.tychron.com/blog/simplifying-messaging-rate-limits/): Understand messaging rate limits and optimize your message sending.
- [Why your number shows up as SPAM (and how to fix it)](https://www.tychron.com/blog/why-your-number-shows-up-as-spam/): While carriers, third-party services and apps are getting better at detecting SPAM callers, some legitimate callers are left being burned by incorrect SPAM flagging. Here’s how to stay proactive and get your numbers unflagged.
- [How Verified Calling Can Make Your Answer Rate Skyrocket](https://www.tychron.com/blog/how-verified-calling-can-make-your-answer-rate-skyrocket/): As Robocalls and SPAM calls increase, businesses’ answer rates are plummeting. Here’s how to build trust with your customers and boost your answer rate with verified calling.
- [Hosted SMS with Tychron](https://www.tychron.com/blog/hosted-sms-with-tychron/): Adding text messaging to your business has never been easier than with Hosted SMS.
- [How to Get More Conversions and Better Engagement with Your Business Messaging](https://www.tychron.com/blog/how-to-get-more-conversions-and-better-engagement-with-your-business-messaging/): Companies are catching on to business messaging. Here’s how to stand out from other SMS marketers and streamline the way your business communicates inside and out with MMS.
- [How to Save on Business Messaging](https://www.tychron.com/blog/how-to-save-on-business-messaging/): Why your business might be spending more on messaging than it should and how to avoid it.
- [How to Gain More Control Over Your Network Traffic](https://www.tychron.com/blog/how-to-gain-more-control-over-your-network-traffic/): Learn how to get more for less and manage your traffic better with Tychron’s LRN (Location Routing Number) Lookup and enhanced LRN API.
- [3 Important Things About the Campaign Registry](https://www.tychron.com/blog/3-important-things-about-the-campaign-registry/): Big changes are coming to the business texting landscape. Here are 3 important things to know about the campaign registry and how to get registered.
- [How to Stand Out in the World of Business Messaging with Verified SMS.](https://www.tychron.com/blog/how-to-stand-out-in-the-world-of-business-messaging-with-verified-sms/): Build brand awareness and convert more with personalized messaging your customers can trust. Here is everything you need to know about Verified SMS.
- [Understanding Business Messaging: Campaign Registration](https://www.tychron.com/blog/understanding-business-messaging-in-2021-campaign-registration/): Everything you need to know about the upcoming changes to business messaging and how to register your messaging campaigns.
- [Understanding Business Messaging: How to Develop Your Text Messaging Strategy](https://www.tychron.com/blog/understanding-business-messaging-in-2021-how-to-develop-your-text-messaging-strategy/): Adopting text messaging as a communication channel for your business can be a game changer. But it isn’t always straightforward. Here are some essential tips for developing your text messaging strategy.
- [988 Designation: Deadlines and Key Changes](https://www.tychron.com/blog/988-designation-deadlines-and-key-changes/): On July 16, 2020, the FCC designated 988 as the three-digit abbreviated dialing code for the National Suicide Prevention Hotline. Here are a few key deadlines and changes to take note of.

## Voice & Consulting

- [Voice Services](https://www.tychron.com/services/voice-services/): number provisioning, porting, CNAM, STIR/SHAKEN, and E911 - for customers who also want voice on Tychron. Most customers use Tychron for messaging only and keep their existing voice carrier.
- [Verified Calling & Branded Caller ID](https://www.tychron.com/services/voice-services/verified-calling/): where Google's retired Verified Calls program went and how branded caller ID (the industry's BCID standard, built on STIR/SHAKEN) works in 2026
- [Consulting](https://www.tychron.com/services/consulting/): telecom consulting from people who operate a carrier - 27+ years of experience

## Company & Policies

- [About Tychron](https://www.tychron.com/company/): licensed carrier, 27+ years of telecom experience
- [Our Network](https://www.tychron.com/our-network/): GlobalCast anycast edge - Tychron's own ARIN-issued IP space announced from 130+ PoPs in 95+ cities and 50+ countries
- [Privacy & Cookie Policy](https://www.tychron.com/company/privacy-policy/)
- [Acceptable Use Policy](https://www.tychron.com/company/acceptable-use-policy/)
- [Accessibility Statement](https://www.tychron.com/company/accessibility/): the site and Atlas portal accessibility program (site targets WCAG 2.2 AA), the built-in accessibility controls, and how to report a barrier
- [Atlas Accessibility Statement (detailed)](https://www.tychron.com/company/accessibility/atlas/): the Atlas portal's full WCAG 2.2 A/AA self-assessment — currently partially conformant (29 of 55 criteria met at v2.5.345), with every known barrier, workaround, and the remediation plan
- [Trust Center](https://compliance.tychron.com): security posture and compliance documentation
- [Network Status](https://status.tychron.com/): live service status

## Developers

- [Atlas API & Provisioning Reference](https://docs.tychron.com/api-reference/): the complete customer API reference - messaging (SMS/MMS over HTTP, SMPP, MM4), telecom data lookups, provisioning as code, webhook event subscriptions, call and message detail records over HTTP or SFTP, and account, user, and API key management - with schemas, examples, and error codes, organized as a chapter index with stable deep links to every section
- [SMS API Reference](https://docs.tychron.com/sms-api/)
- [MMS API Reference](https://docs.tychron.com/mms-api/)
- [CNAM API Reference](https://docs.tychron.com/cnam-api/)
- [LRN API Reference](https://docs.tychron.com/lrn-api/)
- [MCL API Reference](https://docs.tychron.com/mcl-api/)