Migrate from Telnyx Number Lookup to VeriRoute Intel

Why SMS and A2P Teams Switch from Telnyx

Telnyx is a full communications platform — voice, SMS, fax, and number management. Its Number Lookup product is a capable supporting feature, not a dedicated phone intelligence service. For basic number hygiene, it works. For SMS aggregators, A2P routing pipelines, and compliance teams that need to know exactly which messaging company handles a number, Telnyx Number Lookup has one critical gap: it returns the carrier of record, not the messaging provider.

The difference is significant. A number can be ported to AT&T but deliver SMS through Bandwidth. A number can sit on Verizon's network but use Twilio as its messaging provider. Routing A2P traffic without knowing the messaging provider means guessing — and guessing costs deliverability.

Pricing Comparison

Feature Comparison

Side-by-Side Code Examples

Both APIs use REST with JSON responses. The switch is a matter of updating the endpoint, auth header, and field name mappings in your parsing layer.

curl -X GET "https://api.telnyx.com/v2/number_lookup/+15555550123?type=carrier" \
  -H "Authorization: Bearer YOUR_TELNYX_API_KEY"

curl -X POST "https://api-service.verirouteintel.io/api/v1/lrn" \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "phone_number": "15555550123",
    "include_enhanced_lrn": true,
    "messaging_lookup": true
  }'

import requests

phone = "+15555550123"
response = requests.get(
    f"https://api.telnyx.com/v2/number_lookup/{phone}",
    params={"type": "carrier"},
    headers={"Authorization": "Bearer YOUR_TELNYX_API_KEY"}
)
data = response.json()["data"]

carrier_name = data["carrier"]["name"]
carrier_type = data["carrier"]["type"]

print(f"Carrier: {carrier_name}")
print(f"Line Type: {carrier_type}")

import requests

response = requests.post(
    "https://api-service.verirouteintel.io/api/v1/lrn",
    json={
        "phone_number": "15555550123",
        "include_enhanced_lrn": True,
        "messaging_lookup": True
    },
    headers={"Authorization": "Bearer YOUR_API_KEY"}
)
data = response.json()

carrier = data["enhanced_lrn"]["carrier"]
carrier_type = data["enhanced_lrn"]["carrier_type"]
messaging_provider = data["messaging"]["provider"]   # No Telnyx equivalent

print(f"LRN: {data['lrn']}")                         # Telnyx returns null for this
print(f"Carrier: {carrier}")
print(f"Carrier Type: {carrier_type}")
print(f"Messaging Provider: {messaging_provider}")    # No Telnyx equivalent

const axios = require('axios');

const phone = '+15555550123';
const response = await axios.get(
  `https://api.telnyx.com/v2/number_lookup/${phone}`,
  {
    params: { type: 'carrier' },
    headers: { Authorization: 'Bearer YOUR_TELNYX_API_KEY' }
  }
);

const { carrier, portability } = response.data.data;
console.log('Carrier:', carrier.name);
console.log('Line Type:', carrier.type);
console.log('LRN:', portability.lrn);   // often null in Telnyx

const axios = require('axios');

const response = await axios.post(
  'https://api-service.verirouteintel.io/api/v1/lrn',
  {
    phone_number: '15555550123',
    include_enhanced_lrn: true,
    messaging_lookup: true
  },
  { headers: { Authorization: 'Bearer YOUR_API_KEY' } }
);

const { lrn, enhanced_lrn, messaging } = response.data;
console.log('LRN:', lrn);                            // Telnyx returns null for this
console.log('Carrier:', enhanced_lrn.carrier);
console.log('Carrier Type:', enhanced_lrn.carrier_type);
console.log('Messaging Provider:', messaging.provider); // No Telnyx equivalent

Response Field Mapping: Telnyx → VRI

The Messaging Provider ID Difference

This is the core reason A2P and compliance teams move from Telnyx to VRI. Understanding the distinction is worth a moment:

• Carrier ID tells you the legal carrier — the network operator that holds regulatory responsibility for the number. A number ported to AT&T returns "AT&T" as its carrier.
• Messaging provider ID tells you who is actually delivering SMS to that number right now. That AT&T number may route all SMS traffic through Bandwidth, Twilio, or Sinch as its messaging provider. The carrier did not change; the SMS delivery path did.

For A2P programs, this distinction drives:

• Routing decisions. Different messaging providers have different throughput limits, filtering behavior, and deliverability profiles. Knowing the provider lets you choose the optimal sending route.
• Compliance documentation. 10DLC audits and carrier compliance programs increasingly ask which aggregators touch which traffic. Carrier ID alone is not enough.
• Deliverability diagnosis. When messages stop reaching a number, knowing the messaging provider narrows the failure surface immediately — rather than guessing across carrier networks.
• Fraud detection. Unexpected messaging provider assignments for known numbers can signal SIM swaps, porting fraud, or account compromise.

Step-by-Step Migration Checklist

Telnyx and VRI share the same REST + JSON model. The migration is a targeted code change, not a rearchitecture.

1. Sign up for VeriRoute Intel. Create a free account at verirouteintel.com/register. 10 free lookups are included with no credit card required.
2. Copy your API key from the dashboard. Your key is available immediately under Account → API Keys after registration.
3. Review the VRI API reference. The VRI API docs cover all fields, error codes, and rate limits. Pay particular attention to the messaging_provider response field — this is new data your pipeline will receive that Telnyx was not returning.
4. Map Telnyx Number Lookup response fields to VRI fields. Key mappings: phone_number.carrier.name → carrier; phone_number.type → line_type; phone_number.caller_name → cnam. The full mapping table is in the code examples above.
5. Update the API endpoint URL. Replace https://api.telnyx.com/v2/number_lookup/ with https://api.verirouteintel.com/v1/lookup.
6. Update authentication. Telnyx uses Authorization: Bearer YOUR_TELNYX_API_KEY. VRI uses the same header format: Authorization: Bearer YOUR_VRI_API_KEY. This is the easiest part of the migration — swap the key value only.
7. Update response parsing logic. Remap field references using the mapping from Step 4. Add handling for the new messaging_provider field — decide whether to store it, route on it, or pass it downstream.
8. Test with a sample of 50–100 numbers. Compare VRI output against stored Telnyx output for the same numbers. Note that VRI may return richer carrier data and will add messaging_provider values where Telnyx returned nothing.
9. Run parallel comparison for 48 hours. Dual-write to both APIs on live traffic. Log discrepancies and review messaging provider data before committing to full cutover.
10. Cut over fully to VRI. Remove the Telnyx Number Lookup integration. Archive your Telnyx API keys. Update any dashboards or alerts that reference Telnyx-specific error codes.

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