Master Street Address Guide (MSAG)

Publisher

Bandwidth

URL

https://www.bandwidth.com/glossary/master-street-address-guide-msag/

Published

2025-12-09

Updated

unknown

Accessed

2026-10-14

HTTP status

200

License

Bandwidth glossary; copyright Bandwidth; no-redistribution; short excerpts and locators only

Source notes citing this source

• Bandwidth says it updates its geocode and MSAG databases daily using Baseline and Delta files from the MSAG Operator plus local authority data. in context
• Bandwidth validates a submitted civic or postal 911 address by geocoding it to assign an X/Y coordinate, which it treats as confirming successful validation. in context
• After geocoding, Bandwidth stores each validated address in the MSAG-compliant format for the relevant jurisdiction so it can answer PSAP queries for that telephone number. in context
• Bandwidth's glossary states that state and municipal authorities are responsible for updating the MSAG and making it available, with an MSAG Coordinator or Administrator maintaining it for PSAP use. in context
• Bandwidth's glossary describes an MSAG address as absolute and unique, disallowing variants in directionals, street spelling, suffixes and community names. in context

Cite this source record

APA

WarmTransfer. (2025, December 9). Master Street Address Guide (MSAG). WarmTransfer. https://warmtransfer.net/knowledge/sources/bandwidth-glossary-msag

BibTeX

@misc{warmtransfer-bandwidth-glossary-msag,
  title  = {Master Street Address Guide (MSAG)},
  author = {{WarmTransfer}},
  year   = {2025},
  url    = {https://warmtransfer.net/knowledge/sources/bandwidth-glossary-msag},
  note   = {Bandwidth, accessed 2026-10-14}
}