Advanced Methods to Target and Eliminate Unlawful Robocalls, Fourth Report and Order (FCC 20-187)

Publisher

Federal Communications Commission

URL

https://docs.fcc.gov/public/attachments/FCC-20-187A1.txt

Published

2020-12-30

Updated

unknown

Accessed

2026-09-24

HTTP status

206

License

US government work (public domain); public domain; short excerpts and locators used anyway

Source notes citing this source

• FCC 20-187 limited the blocked-calls list to calls blocked in no fewer than the 28 days before the request. in context
• In FCC 20-187 the Commission expressly declined to address erroneous call labeling, so the blocking redress rules adopted there were not extended to mislabeled calls. in context
• The 2020 Fourth Report and Order (FCC 20-187) required terminating providers blocking on IP networks to return SIP 607 or 608 and ISUP code 21 on TDM networks, with compliance by 1 January 2022. in context
• FCC 20-187 declined to include labeled calls in the blocked-calls list, reasoning that consumers receive labeled calls and can see them in their missed-call list. in context
• No federal rule found in this research gives callers a notification code, list entry or fixed resolution timeline for analytics labels (such as 'Spam Likely'), as distinct from blocking; label remediation depends on each carrier's and analytics vendor's voluntary process. inferred in context
• FCC 20-187 expects voice service providers to meet the blocking safeguards whether or not they use a third party, while a provider is not responsible for blocking by a service the consumer chose. in context

Cite this source record

APA

WarmTransfer. (2020, December 30). Advanced Methods to Target and Eliminate Unlawful Robocalls, Fourth Report and Order (FCC 20-187). WarmTransfer. https://warmtransfer.net/knowledge/sources/fcc-20-187-fourth-call-blocking-order

BibTeX

@misc{warmtransfer-fcc-20-187-fourth-call-blocking-order,
  title  = {Advanced Methods to Target and Eliminate Unlawful Robocalls, Fourth Report and Order (FCC 20-187)},
  author = {{WarmTransfer}},
  year   = {2020},
  url    = {https://warmtransfer.net/knowledge/sources/fcc-20-187-fourth-call-blocking-order},
  note   = {Federal Communications Commission, accessed 2026-09-24}
}