OUI Lookup
000757
Topcall International AG
Manufacturer Information
- OUI Prefix
- 000757
- Manufacturer
- Topcall International AG
- Address
- Talpagasse 1 AT
- Last updated
- 6/10/2026
Vendor Statistics
- Total prefixes
- 1
- Block type
- MA-L
- Available addresses
- ~16 millones
About prefix 000757
The OUI prefix 000757 is assigned to Topcall International AG, based in Talpagasse 1 AT . It is a MA-L type block of 24 bits (first three octets). Allows up to 16 million unique MAC addresses. If you find this prefix on your network, the devices belong to Topcall International AG.