Zesimo Blog | eSIM wholesale insight for resellers

Briefings for the people selling connectivity From the team at Zesimo

Nº 04Market Briefing

Sell the eSIM at Booking. Issue It the Week They Fly.

An unused eSIM can expire 30 days after it is issued. Why travel brands should sell the eSIM at booking but issue it in the week the customer flies.

October 19, 2026 6 min read Zesimo Editorial

Read the briefing

Nº 04Volume One Zesimo · Field Notes

MARKET BRIEFING Oct 2026

Nº 03 · Technical Note

eSIM Activation Codes and Install Links: A Developer's Guide

A developer's guide to the eSIM activation code: what to encode in the QR, when to drop the LPA: prefix, and why iOS and Android install links differ.

Aug 30, 2026 · 7 min

Nº 02 · Product Note

Your eSIM Catalog Is Now Agent-Native

Connect your Zesimo reseller account to Claude, ChatGPT, Cursor and more over MCP. An AI assistant can read your catalog, wallet and orders directly.

Jul 31, 2026 · 4 min

Nº 01 · Market Briefing

The Connectivity Window: What World Cup 2026 Meant for eSIM Resellers

For five and a half weeks from June 11, the World Cup ran across three host countries at once. A short retrospective for resellers on the gap that opened and how Zesimo priced the window.

Jun 8, 2026 · 5 min

About this publication

Field Notes is the Zesimo editorial.

Briefings, product notes, and reseller economics from the team building the platform. Published irregularly when the calendar demands it.

Tips, corrections, pitches welcome via the team page

Nº 05In the next issue

Topping up an eSIM does not always add data. On some networks the new plan replaces the one the customer is still using. To be published