Source note · Number porting and LNP workflows
47 CFR 52.21 defines service portability as keeping a number when switching from one telecommunications service to another without changing carrier.
Checked 2026-09-24
- Vendor
- not restricted
- Product
- not restricted
- Subsystem
- definitions
- Deployment
- pstn
- Region
- us
- Release range
- current as of 2026-09-24
- Checked
- 2026-09-24
Sources
- 47 CFR § 52.21 - Definitions — Legal Information Institute (Cornell Law School), reproducing the Code of Federal Regulations · tier 1 standards and regulators · 47 CFR 52.21, definition of service portability
Cite this note
APA
WarmTransfer. (2026, September 24). Number porting and LNP workflows: source note number-porting-us-service-portability. WarmTransfer. https://warmtransfer.net/knowledge/claims/number-porting-us-service-portability
BibTeX
@misc{warmtransfer-claim-number-porting-us-service-portability,
title = {Number porting and LNP workflows: source note number-porting-us-service-portability},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/number-porting-us-service-portability},
note = {Source note number-porting-us-service-portability, checked 2026-09-24}
}