# Numbers you may repeat

Study notes. Not vendor documentation and not legal advice.

- E.164's article states a maximum of fifteen digits.
- The SMS article states up to 160 characters.
- Bandwidth states 3.75 MB uploads, 48-hour file storage, HTTP 202, and a 24-hour webhook retry.
- Plivo's WhatsApp page states USD 1,000 per month in the US data region and ₹1,00,000 per month in the India data region.
- IANA's SIP parameters page shows Last Updated 2026-08-17. That is a registry date, not a call-quality score.

Make a table with two columns: figure, and the page. Fifteen digits, E.164 article. 160 characters, SMS article. 3.75 MB, Bandwidth messaging guide. USD 1,000, Plivo WhatsApp prerequisites. Anything else: confirm.