Harbin Cheng Tian Technology Development Co., Ltd.

MAC address prefix 70:B3:D5:CF:4 is registered to Harbin Cheng Tian Technology Development Co., Ltd., located at ROOM140，Building21A，145 Nantong StreetHarbin Heilongjiang 150001CN.

This registration is classified as MA-S (Mac Address Block Small, formerly known as OUI-36) containing approximately 4096 MAC addresses per block

The prefix was registered on 18 February 2016, and no subsequent updates have been recorded.

OUI: 70:B3:D5:CF:4

Vendor name: Harbin Cheng Tian Technology Development Co., Ltd.

Address:

ROOM140，Building21A，145 Nantong Street
Harbin Heilongjiang 150001
CN.

Assignment Type MA-S

Mac Address Block Small (previously named OUI-36, encompasses IAB Assignments). Number of address 2^12 (4096)

Initial registration: 18 February 2016

MAC Address Vendor Country CN map