🚫 UCEPROTECT L2
Why UCEPROTECT L2 lists entire subnets, and what to do when a noisy neighbour drags your IP onto the list.
Published · Last verified · Maintained by TamingDNS
IP Blocklist (RBL)
dnsbl-2.uceprotect.net
ℹ️ About This Blocklist
Level 2 lists a whole allocation once enough addresses inside it trip Level 1. The size is not fixed at a /24: UCEPROTECT lists anything smaller than a /27 on a single impact, a /26 on two, a /25 on three, a /24 on four, and escalates to larger blocks on a published formula. Every IP in the listed block is affected, including the well-behaved ones.
What a Listing Means
Your allocation has too many spam sources in it. Your specific IP may be clean — you are caught by the neighbours.
🔢 DNSBL Return Codes
When listed, the DNSBL returns one of these 127.x.x.x addresses. The specific code indicates the reason for the listing.
| Return IP | Meaning |
|---|---|
| 127.0.0.2 | Listed in UCEPROTECT L2 (the whole allocation is listed, not just your IP) |
⏳ How Listings Clear
You cannot delist a single IP from L2 on your own. Either move to a cleaner range, push your hosting provider to discipline the spammers in the block, or pay UCEPROTECT for express removal.
UCEPROTECT L2 lookup / info ↗📚 Official Documentation
🔍 Check Your IP or Domain Against UCEPROTECT L2
Run a live blacklist check against all 20 blocklists we monitor, including UCEPROTECT L2.