ip neighborsdirectory What the mail shows
103 other senders have been seen on at least one of these IPs, though none matches the full pool.
103
Other companies on them
Who else sends from these IPs and 63 more.
The Klaviyo pool this sits in · 9 brands · 29 addresses These senders draw from near-identical sets of addresses, which is what sharing a pool means. Klaviyo publishes none of this. See every pool we have recovered .
The IPs, by how much of this mail each carried 19 of ~29 IPs seen. Klaviyo assigns a different IP per send, so this is the set drawn from, not an address. 170.203.16.21 carried 12% of what we saw, well above the 5% an even rotation would give it.
Sending over time 9 addresses first appeared mid-window and none stopped appearing. In a sampled panel that is usually sampling, not movement; the real answer needs your DMARC reports.
EACH ROW IS ONE ADDRESS, OLDEST FIRST · BAR = IN THE POOL · DARKER = MORE CAMPAIGNS 149.72.196.98 149.72.196.98 · o1380 · carried this mail 4 Jul 24 to now · 1 campaigns 149.72.196.98 · week of 04/07/2024 · 1 campaign 1 170.203.28.6 170.203.28.6 · kl-203-28-6 · carried this mail 3 Jul 25 to now · 5 campaigns 170.203.28.6 · week of 03/07/2025 · 1 campaign 170.203.28.6 · week of 21/08/2025 · 1 campaign 170.203.28.6 · week of 23/10/2025 · 1 campaign 170.203.28.6 · week of 27/11/2025 · 1 campaign 170.203.28.6 · week of 26/03/2026 · 1 campaign 5 170.203.16.6 170.203.16.6 · kl-203-16-6 · carried this mail 3 Jul 25 to now · 8 campaigns 170.203.16.6 · week of 03/07/2025 · 1 campaign 170.203.16.6 · week of 17/07/2025 · 1 campaign 170.203.16.6 · week of 24/07/2025 · 2 campaigns 170.203.16.6 · week of 07/08/2025 · 1 campaign 170.203.16.6 · week of 14/08/2025 · 1 campaign 170.203.16.6 · week of 12/02/2026 · 1 campaign 170.203.16.6 · week of 09/04/2026 · 1 campaign 8 170.203.28.1 170.203.28.1 · kl-203-28-1 · carried this mail 3 Jul 25 to now · 10 campaigns 170.203.28.1 · week of 03/07/2025 · 1 campaign 170.203.28.1 · week of 10/07/2025 · 1 campaign 170.203.28.1 · week of 17/07/2025 · 1 campaign 170.203.28.1 · week of 28/08/2025 · 1 campaign 170.203.28.1 · week of 04/09/2025 · 1 campaign 170.203.28.1 · week of 11/09/2025 · 1 campaign 170.203.28.1 · week of 18/12/2025 · 1 campaign 170.203.28.1 · week of 05/02/2026 · 2 campaigns 170.203.28.1 · week of 16/04/2026 · 1 campaign 10 170.203.20.21 170.203.20.21 · kl-203-20-21 · carried this mail 3 Jul 25 to now · 13 campaigns 170.203.20.21 · week of 03/07/2025 · 1 campaign 170.203.20.21 · week of 24/07/2025 · 1 campaign 170.203.20.21 · week of 31/07/2025 · 2 campaigns 170.203.20.21 · week of 07/08/2025 · 2 campaigns 170.203.20.21 · week of 14/08/2025 · 2 campaigns 170.203.20.21 · week of 21/08/2025 · 1 campaign 170.203.20.21 · week of 28/08/2025 · 1 campaign 170.203.20.21 · week of 04/09/2025 · 1 campaign 170.203.20.21 · week of 26/02/2026 · 1 campaign 170.203.20.21 · week of 07/05/2026 · 1 campaign 13 170.203.20.6 170.203.20.6 · kl-203-20-6 · carried this mail 3 Jul 25 to now · 11 campaigns 170.203.20.6 · week of 03/07/2025 · 1 campaign 170.203.20.6 · week of 10/07/2025 · 2 campaigns 170.203.20.6 · week of 07/08/2025 · 1 campaign 170.203.20.6 · week of 28/08/2025 · 1 campaign 170.203.20.6 · week of 11/09/2025 · 1 campaign 170.203.20.6 · week of 06/11/2025 · 1 campaign 170.203.20.6 · week of 11/12/2025 · 1 campaign 170.203.20.6 · week of 30/04/2026 · 1 campaign 170.203.20.6 · week of 14/05/2026 · 1 campaign 170.203.20.6 · week of 21/05/2026 · 1 campaign 11 170.203.16.21 170.203.16.21 · kl-203-16-21 · carried this mail 3 Jul 25 to now · 13 campaigns 170.203.16.21 · week of 03/07/2025 · 2 campaigns 170.203.16.21 · week of 10/07/2025 · 2 campaigns 170.203.16.21 · week of 17/07/2025 · 1 campaign 170.203.16.21 · week of 31/07/2025 · 2 campaigns 170.203.16.21 · week of 14/08/2025 · 1 campaign 170.203.16.21 · week of 11/09/2025 · 2 campaigns 170.203.16.21 · week of 13/11/2025 · 1 campaign 170.203.16.21 · week of 12/03/2026 · 1 campaign 170.203.16.21 · week of 28/05/2026 · 1 campaign 13 170.203.20.5 170.203.20.5 · kl-203-20-5 · carried this mail 3 Jul 25 to now · 9 campaigns 170.203.20.5 · week of 03/07/2025 · 1 campaign 170.203.20.5 · week of 10/07/2025 · 1 campaign 170.203.20.5 · week of 17/07/2025 · 1 campaign 170.203.20.5 · week of 14/08/2025 · 1 campaign 170.203.20.5 · week of 28/08/2025 · 2 campaigns 170.203.20.5 · week of 20/11/2025 · 1 campaign 170.203.20.5 · week of 23/04/2026 · 1 campaign 170.203.20.5 · week of 25/06/2026 · 1 campaign 9 170.203.24.6 170.203.24.6 · kl-203-24-6 · carried this mail 10 Jul 25 to now · 9 campaigns 170.203.24.6 · week of 10/07/2025 · 2 campaigns 170.203.24.6 · week of 17/07/2025 · 2 campaigns 170.203.24.6 · week of 07/08/2025 · 1 campaign 170.203.24.6 · week of 28/08/2025 · 1 campaign 170.203.24.6 · week of 06/11/2025 · 1 campaign 170.203.24.6 · week of 07/05/2026 · 1 campaign 170.203.24.6 · week of 14/05/2026 · 1 campaign 9 170.203.24.36 170.203.24.36 · kl-203-24-36 · carried this mail 10 Jul 25 to now · 10 campaigns 170.203.24.36 · week of 10/07/2025 · 3 campaigns 170.203.24.36 · week of 31/07/2025 · 1 campaign 170.203.24.36 · week of 07/08/2025 · 1 campaign 170.203.24.36 · week of 21/08/2025 · 1 campaign 170.203.24.36 · week of 11/09/2025 · 1 campaign 170.203.24.36 · week of 26/03/2026 · 1 campaign 170.203.24.36 · week of 30/04/2026 · 1 campaign 170.203.24.36 · week of 28/05/2026 · 1 campaign 10 170.203.16.7 170.203.16.7 · kl-203-16-7 · carried this mail 10 Jul 25 to now · 3 campaigns 170.203.16.7 · week of 10/07/2025 · 1 campaign 170.203.16.7 · week of 17/07/2025 · 1 campaign 170.203.16.7 · week of 09/07/2026 · 1 campaign 3 170.203.24.5 170.203.24.5 · kl-203-24-5 · carried this mail 31 Jul 25 to now · 3 campaigns 170.203.24.5 · week of 31/07/2025 · 1 campaign 170.203.24.5 · week of 14/08/2025 · 1 campaign 170.203.24.5 · week of 04/09/2025 · 1 campaign 3 167.89.100.40 167.89.100.40 · o1355 · carried this mail 21 Aug 25 to now · 1 campaigns 167.89.100.40 · week of 21/08/2025 · 1 campaign 1 167.89.100.83 167.89.100.83 · o1305 · carried this mail 11 Sept 25 to now · 1 campaigns 167.89.100.83 · week of 11/09/2025 · 1 campaign 1 170.203.23.144 170.203.23.144 · kl-203-23-144 · carried this mail 13 Nov 25 to now · 3 campaigns 170.203.23.144 · week of 13/11/2025 · 1 campaign 170.203.23.144 · week of 02/04/2026 · 1 campaign 170.203.23.144 · week of 23/07/2026 · 1 campaign 3 170.203.19.129 170.203.19.129 · kl-203-19-129 · carried this mail 18 Dec 25 to now · 4 campaigns 170.203.19.129 · week of 18/12/2025 · 1 campaign 170.203.19.129 · week of 19/03/2026 · 1 campaign 170.203.19.129 · week of 25/06/2026 · 1 campaign 170.203.19.129 · week of 23/07/2026 · 1 campaign 4 170.203.28.201 170.203.28.201 · kl-203-28-201 · carried this mail 5 Mar 26 to now · 4 campaigns 170.203.28.201 · week of 05/03/2026 · 1 campaign 170.203.28.201 · week of 02/04/2026 · 1 campaign 170.203.28.201 · week of 09/04/2026 · 1 campaign 170.203.28.201 · week of 25/06/2026 · 1 campaign 4 167.89.100.198 167.89.100.198 · o1310 · carried this mail 19 Mar 26 to now · 1 campaigns 167.89.100.198 · week of 19/03/2026 · 1 campaign 1 167.89.84.19 167.89.84.19 · o1329 · carried this mail 16 Jul 26 to now · 1 campaigns 167.89.84.19 · week of 16/07/2026 · 1 campaign 1 Jul 24 Nov 24 Mar 25 Jul 25 Nov 25 Mar 26 Jul 26
Is this your domain? This page is built from mail we received, so it is a sample. Verify the domain and you get the complete pool from your own DMARC reports, plus an email the day the pool changes.
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How this was measured
Panel mailboxes subscribe to public newsletters. Every message carries the IP that delivered it in its Received: headers, which is how the pairing of brand to IP is established. Nothing here is modelled or inferred.
Published: which IP carried which brand's mail, by day. Not published: how much anyone sends, when exactly, or where their mail landed. Adjacency is a fact about shared infrastructure; performance belongs to the sender.
A brand that would rather not appear here is removed on request, same day.