diff --git a/lib/core.js b/lib/core.js
index 1ff8bb4..9978f7e 100644
--- a/lib/core.js
+++ b/lib/core.js
@@ -568,6 +568,7 @@ core.start = async (commander) => {
       let processedChannels = 0;
       let earliestTs = null;
       let latestTs = null;
+      const fetchedPerChannel = {};
       const CONCURRENCY = 5;
 
       const processMessage = (message, channelId) => {
@@ -632,6 +633,7 @@ core.start = async (commander) => {
         });
 
         totalFetched++;
+        fetchedPerChannel[channelId] = (fetchedPerChannel[channelId] || 0) + 1;
 
         const ts = parseFloat(message.ts);
         if (earliestTs === null || ts < earliestTs) earliestTs = ts;
@@ -676,6 +678,11 @@ core.start = async (commander) => {
         clearInterval(progressInterval);
         if (totalFetched > 0) {
           process.stdout.write(`Backfill complete: ${totalFetched} message(s) fetched.\n`);
+          Object.entries(fetchedPerChannel)
+            .sort((a, b) => b[1] - a[1])
+            .forEach(([chId, count]) => {
+              process.stdout.write(`  ${resolveChannelLabelKey(chId)}: ${count} message(s)\n`);
+            });
         } else {
           process.stdout.write("Backfill complete: no new messages.\n");
         }