MAC address 00:1D:66 (HYUNDAI HT Co., Ltd.)

MAC address prefix 00:1D:66 is registered to HYUNDAI HT Co., Ltd., located at Hyundai Telecom Bldg., 4273-12, Shingil-Dong, Youngdungpo-Gu, Seoul 150-859, KR. This registration is classified as MA-L (MAC Address Block Large) containing 16,777,216 MAC addresses (2^24). The prefix was initially registered on 18 August 2007, with the most recent update made on 04 August 2026.

Vendor & Registry Dossier

Public Allocation
Assigned Prefix
00:1D:66
Registrant / Organization
HYUNDAI HT Co., Ltd.
Registry Chronology
Initial registration: 18 August 2007
Last updated: 04 August 2026
Assignment Classification
MA-L

(MAC Address Block Large) containing 16,777,216 MAC addresses (2^24)

Registered Location

MAC Address Vendor Country South Korea (KR) map
Country: South Korea (KR)
Headquarters Registered Facility 🇰🇷 KR
Hyundai Telecom Bldg.
4273-12
Shingil-Dong
Youngdungpo-Gu

Seoul 150-859
KR.

REST API v2

200 OK
CLI curl -s https://api.maclookup.app/v2/macs/001d66 -H 'Accept: application/json'
{
  "success": true,
  "found": true,
  "macPrefix": "001D66",
  "company": "HYUNDAI HT Co., Ltd.",
  "address": "Hyundai Telecom Bldg., 4273-12, Shingil-Dong, Youngdungpo-Gu, Seoul  150-859, KR",
  "country": "KR",
  "blockStart": "001D66000000",
  "blockEnd": "001D66FFFFFF",
  "blockSize": 16777215,
  "blockType": "MA-L",
  "updated": "2026-08-04",
  "isRand": false,
  "isPrivate": false
}