A Location Routing Number (LRN) is a unique 10-digit telephone number assigned to each switch to support call routing to ported numbers.
Checked 2026-10-02
a unique 10-digit telephone number assigned to each switch to support call routing
- Vendor
- iconectiv
- Product
- NPAC
- Subsystem
- lnp-architecture
- Deployment
- pstn
- Region
- us
- Release range
- current as of 2026-10-02
- Checked
- 2026-10-02
Sources
- General FAQs — NPAC (iconectiv, Local Number Portability Administrator) · tier 1 standards and regulators · FAQ: What is a LRN?
Cite this note
APA
WarmTransfer. (2026, October 2). Troubleshooting calls that fail to ported numbers after cutover: source note post-port-routing-troubleshooting-lrn-definition. WarmTransfer. https://warmtransfer.net/knowledge/claims/post-port-routing-troubleshooting-lrn-definition
BibTeX
@misc{warmtransfer-claim-post-port-routing-troubleshooting-lrn-definition,
title = {Troubleshooting calls that fail to ported numbers after cutover: source note post-port-routing-troubleshooting-lrn-definition},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/post-port-routing-troubleshooting-lrn-definition},
note = {Source note post-port-routing-troubleshooting-lrn-definition, checked 2026-10-02}
}