For simple ports under 47 CFR 52.35(a), Monday through Friday are mandatory business days and 8 a.m. to 5 p.m. are minimum business hours, excluding the current provider's company-defined holidays.

Checked 2026-09-24

Vendor
not restricted
Product
not restricted
Subsystem
porting-interval
Deployment
pstn
Region
us
Release range
current as of 2026-09-24
Checked
2026-09-24

Sources

Cite this note

APA

WarmTransfer. (2026, September 24). Number porting and LNP workflows: source note number-porting-us-business-day-definition. WarmTransfer. https://warmtransfer.net/knowledge/claims/number-porting-us-business-day-definition

BibTeX

@misc{warmtransfer-claim-number-porting-us-business-day-definition,
  title  = {Number porting and LNP workflows: source note number-porting-us-business-day-definition},
  author = {{WarmTransfer}},
  year   = {2026},
  url    = {https://warmtransfer.net/knowledge/claims/number-porting-us-business-day-definition},
  note   = {Source note number-porting-us-business-day-definition, checked 2026-09-24}
}

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