At this time, blockchain.info doesn't. Neither does blockchair or blockcypher.
Blockchair announced support for Bech32 addresses last month.
This page about Bech32 adoption on bitcoin.it wiki page is tracking blockexplorers that support Bech32 addresses.
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1Looks like blockchain.info can decode bech32 if you select "show scripts..." aka Advanced mode. But doesn't seem to be able to search for a bech32 address – pinhead Dec 25 '17 at 5:06
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