HTTPfy

MAC prefix 70:03:9F

Assigned by the IEEE to Espressif Inc..

Prefix
70:03:9F   70-03-9F   7003.9F
Block type
MA-L (16,777,216 addresses)
Address range
70:03:9F:00:00:00 – 70:03:9F:FF:FF:FF
Organization
Espressif Inc.
Registered address
Room 204, Building 2, 690 Bibo Rd, Pudong New Area, Shanghai Shanghai 201203, CN
Country
China (CN)
Address bits
Unicast (I/G bit 0), globally unique (U/L bit 0)

Look up 70:03:9F:00:00:00

Espressif Inc. holds 170 blocks in total: see all. Source: IEEE Registration Authority public listing.