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CERN

MAC address prefix 08:00:30 is registered to CERN in the IEEE OUI registry. Any device whose MAC address begins with 08:00:30 has a network interface built by CERN. This prefix (the OUI, or Organizationally Unique Identifier) is assigned by the IEEE and is the first three octets of the address — it covers every MAC from 08:00:30:00:00:00 to 08:00:30:FF:FF:FF.

OUI prefix
08:00:30
Hyphen form
08-00-30
MAC range
08:00:30:00:00:00 – 08:00:30:FF:FF:FF
Addresses in block
16,777,216
Organization
CERN
Address
CH-1211 GENEVE SUISSE/SWITZ CH 023
Source
IEEE OUI registry

Have a full MAC address? Look it up— we'll also tell you if it's a randomized (private) address rather than a real manufacturer prefix.

Other prefixes from CERN

CERN holds 2 OUI prefixes in total. A device with this exact prefix could just as well carry any of these:

Assignment history (133)

The IEEE registry publishes current state only — this is the change record we've kept since we started tracking it daily.

  1. 2016-07-29Assigned to "NETWORK RESEARCH CORPORATION"
    archived source →
  2. 2017-09-08Renamed from "NETWORK RESEARCH CORPORATION" to "ROYAL MELBOURNE INST OF TECH"
    archived source →
  3. 2018-12-21Renamed from "ROYAL MELBOURNE INST OF TECH" to "NETWORK RESEARCH CORPORATION"
    archived source →
  4. 2019-07-04Renamed from "NETWORK RESEARCH CORPORATION" to "ROYAL MELBOURNE INST OF TECH"
    archived source →
  5. 2019-08-04Renamed from "ROYAL MELBOURNE INST OF TECH" to "NETWORK RESEARCH CORPORATION"
    archived source →
  6. 2020-03-21Renamed from "NETWORK RESEARCH CORPORATION" to "ROYAL MELBOURNE INST OF TECH"
    archived source →
  7. 2020-04-23Renamed from "ROYAL MELBOURNE INST OF TECH" to "NETWORK RESEARCH CORPORATION"
    archived source →
  8. 2020-05-13Renamed from "NETWORK RESEARCH CORPORATION" to "ROYAL MELBOURNE INST OF TECH"
    archived source →
  9. 2020-08-05Renamed from "ROYAL MELBOURNE INST OF TECH" to "NETWORK RESEARCH CORPORATION"
    archived source →
  10. 2020-11-28Renamed from "NETWORK RESEARCH CORPORATION" to "ROYAL MELBOURNE INST OF TECH"
    archived source →
  11. 2021-02-25Renamed from "ROYAL MELBOURNE INST OF TECH" to "NETWORK RESEARCH CORPORATION"
    archived source →
  12. 2021-06-10Renamed from "NETWORK RESEARCH CORPORATION" to "ROYAL MELBOURNE INST OF TECH"
    archived source →
  13. 2022-07-11Renamed from "ROYAL MELBOURNE INST OF TECH" to "NETWORK RESEARCH CORPORATION"
    archived source →
  14. 2022-09-05Renamed from "NETWORK RESEARCH CORPORATION" to "ROYAL MELBOURNE INST OF TECH"
    archived source →
  15. 2023-07-11Renamed from "ROYAL MELBOURNE INST OF TECH" to "NETWORK RESEARCH CORPORATION"
    archived source →
  16. 2024-02-15Renamed from "NETWORK RESEARCH CORPORATION" to "ROYAL MELBOURNE INST OF TECH"
    archived source →
  17. 2024-04-16Renamed from "ROYAL MELBOURNE INST OF TECH" to "NETWORK RESEARCH CORPORATION"
    archived source →
  18. 2024-06-23Renamed from "NETWORK RESEARCH CORPORATION" to "ROYAL MELBOURNE INST OF TECH"
    archived source →
  19. 2024-07-02Renamed from "ROYAL MELBOURNE INST OF TECH" to "NETWORK RESEARCH CORPORATION"
    archived source →
  20. 2024-08-15Renamed from "NETWORK RESEARCH CORPORATION" to "ROYAL MELBOURNE INST OF TECH"
    archived source →
  21. 2024-08-27Renamed from "ROYAL MELBOURNE INST OF TECH" to "NETWORK RESEARCH CORPORATION"
    archived source →
  22. 2024-09-17Renamed from "NETWORK RESEARCH CORPORATION" to "ROYAL MELBOURNE INST OF TECH"
    archived source →
  23. 2024-11-20Renamed from "ROYAL MELBOURNE INST OF TECH" to "NETWORK RESEARCH CORPORATION"
    archived source →
  24. 2025-02-27Renamed from "NETWORK RESEARCH CORPORATION" to "ROYAL MELBOURNE INST OF TECH"
    archived source →
  25. 2025-05-13Renamed from "ROYAL MELBOURNE INST OF TECH" to "NETWORK RESEARCH CORPORATION"
    archived source →
  26. 2025-08-23Renamed from "NETWORK RESEARCH CORPORATION" to "ROYAL MELBOURNE INST OF TECH"
    archived source →
  27. 2026-01-08Renamed from "ROYAL MELBOURNE INST OF TECH" to "NETWORK RESEARCH CORPORATION"
    archived source →
  28. 2026-01-19Renamed from "NETWORK RESEARCH CORPORATION" to "ROYAL MELBOURNE INST OF TECH"
    archived source →
  29. 2026-02-17Renamed from "ROYAL MELBOURNE INST OF TECH" to "NETWORK RESEARCH CORPORATION"
    archived source →
  30. 2026-06-20Renamed from "NETWORK RESEARCH CORPORATION" to "ROYAL MELBOURNE INST OF TECH"
    archived source →
  31. 2026-07-17Assigned to "NETWORK RESEARCH CORPORATION"
  32. 2026-07-19Renamed from "NETWORK RESEARCH CORPORATION" to "ROYAL MELBOURNE INST OF TECH"
  33. 2026-07-20Renamed from "ROYAL MELBOURNE INST OF TECH" to "NETWORK RESEARCH CORPORATION"
  34. 2026-07-21Renamed from "NETWORK RESEARCH CORPORATION" to "ROYAL MELBOURNE INST OF TECH"
  35. 2026-07-22Renamed from "ROYAL MELBOURNE INST OF TECH" to "NETWORK RESEARCH CORPORATION"
  36. 2026-07-23Renamed from "NETWORK RESEARCH CORPORATION" to "ROYAL MELBOURNE INST OF TECH"
  37. 2026-07-24Renamed from "ROYAL MELBOURNE INST OF TECH" to "NETWORK RESEARCH CORPORATION"
  38. 2026-07-25Renamed from "NETWORK RESEARCH CORPORATION" to "ROYAL MELBOURNE INST OF TECH"
  39. 2026-07-26Renamed from "ROYAL MELBOURNE INST OF TECH" to "NETWORK RESEARCH CORPORATION"
  40. 2026-07-27Renamed from "NETWORK RESEARCH CORPORATION" to "ROYAL MELBOURNE INST OF TECH"
  41. 2026-07-28Renamed from "ROYAL MELBOURNE INST OF TECH" to "NETWORK RESEARCH CORPORATION"
    archived source →
  42. 2026-07-29Renamed from "NETWORK RESEARCH CORPORATION" to "ROYAL MELBOURNE INST OF TECH"
  43. 2026-07-30Renamed from "ROYAL MELBOURNE INST OF TECH" to "NETWORK RESEARCH CORPORATION"
  44. 2026-07-31Renamed from "NETWORK RESEARCH CORPORATION" to "ROYAL MELBOURNE INST OF TECH"
    archived source →
  45. 2026-08-01Renamed from "ROYAL MELBOURNE INST OF TECH" to "NETWORK RESEARCH CORPORATION"
  46. 2026-08-02Renamed from "NETWORK RESEARCH CORPORATION" to "ROYAL MELBOURNE INST OF TECH"
  47. 2026-08-03Renamed from "ROYAL MELBOURNE INST OF TECH" to "NETWORK RESEARCH CORPORATION"
  48. 2026-08-04Renamed from "NETWORK RESEARCH CORPORATION" to "ROYAL MELBOURNE INST OF TECH"
    archived source →
  49. 2026-08-05Renamed from "ROYAL MELBOURNE INST OF TECH" to "NETWORK RESEARCH CORPORATION"
    archived source →
  50. 2026-08-06Renamed from "NETWORK RESEARCH CORPORATION" to "ROYAL MELBOURNE INST OF TECH"
  51. 2026-08-07Renamed from "ROYAL MELBOURNE INST OF TECH" to "NETWORK RESEARCH CORPORATION"
    archived source →
  52. 2026-08-08Renamed from "NETWORK RESEARCH CORPORATION" to "ROYAL MELBOURNE INST OF TECH"
  53. 2026-08-09Renamed from "ROYAL MELBOURNE INST OF TECH" to "NETWORK RESEARCH CORPORATION"
  54. 2026-08-10Renamed from "NETWORK RESEARCH CORPORATION" to "ROYAL MELBOURNE INST OF TECH"
  55. 2026-08-11Renamed from "ROYAL MELBOURNE INST OF TECH" to "NETWORK RESEARCH CORPORATION"
  56. 2026-08-12Renamed from "NETWORK RESEARCH CORPORATION" to "ROYAL MELBOURNE INST OF TECH"
  57. 2026-08-13Renamed from "ROYAL MELBOURNE INST OF TECH" to "NETWORK RESEARCH CORPORATION"
  58. 2026-08-14Renamed from "NETWORK RESEARCH CORPORATION" to "ROYAL MELBOURNE INST OF TECH"
  59. 2026-08-15Renamed from "ROYAL MELBOURNE INST OF TECH" to "NETWORK RESEARCH CORPORATION"
  60. 2026-08-16Renamed from "NETWORK RESEARCH CORPORATION" to "ROYAL MELBOURNE INST OF TECH"
  61. 2026-08-17Renamed from "ROYAL MELBOURNE INST OF TECH" to "NETWORK RESEARCH CORPORATION"
  62. 2026-08-18Renamed from "NETWORK RESEARCH CORPORATION" to "ROYAL MELBOURNE INST OF TECH"
  63. 2026-08-19Renamed from "ROYAL MELBOURNE INST OF TECH" to "NETWORK RESEARCH CORPORATION"
  64. 2026-08-20Renamed from "NETWORK RESEARCH CORPORATION" to "ROYAL MELBOURNE INST OF TECH"
  65. 2026-08-21Renamed from "ROYAL MELBOURNE INST OF TECH" to "NETWORK RESEARCH CORPORATION"
  66. 2026-08-22Renamed from "NETWORK RESEARCH CORPORATION" to "ROYAL MELBOURNE INST OF TECH"
  67. 2026-08-23Renamed from "ROYAL MELBOURNE INST OF TECH" to "NETWORK RESEARCH CORPORATION"
  68. 2026-08-24Renamed from "NETWORK RESEARCH CORPORATION" to "ROYAL MELBOURNE INST OF TECH"
  69. 2026-08-25Renamed from "ROYAL MELBOURNE INST OF TECH" to "NETWORK RESEARCH CORPORATION"
  70. 2026-08-26Renamed from "NETWORK RESEARCH CORPORATION" to "ROYAL MELBOURNE INST OF TECH"
  71. 2026-08-27Renamed from "ROYAL MELBOURNE INST OF TECH" to "NETWORK RESEARCH CORPORATION"
  72. 2026-08-28Renamed from "NETWORK RESEARCH CORPORATION" to "ROYAL MELBOURNE INST OF TECH"
  73. 2026-08-29Renamed from "ROYAL MELBOURNE INST OF TECH" to "NETWORK RESEARCH CORPORATION"
  74. 2026-08-30Renamed from "NETWORK RESEARCH CORPORATION" to "ROYAL MELBOURNE INST OF TECH"
  75. 2026-08-31Renamed from "ROYAL MELBOURNE INST OF TECH" to "NETWORK RESEARCH CORPORATION"
  76. 2026-09-01Renamed from "NETWORK RESEARCH CORPORATION" to "ROYAL MELBOURNE INST OF TECH"
  77. 2026-09-02Renamed from "ROYAL MELBOURNE INST OF TECH" to "NETWORK RESEARCH CORPORATION"
  78. 2026-09-03Renamed from "NETWORK RESEARCH CORPORATION" to "ROYAL MELBOURNE INST OF TECH"
  79. 2026-09-04Renamed from "ROYAL MELBOURNE INST OF TECH" to "NETWORK RESEARCH CORPORATION"
  80. 2026-09-05Renamed from "NETWORK RESEARCH CORPORATION" to "ROYAL MELBOURNE INST OF TECH"
  81. 2026-09-06Renamed from "ROYAL MELBOURNE INST OF TECH" to "NETWORK RESEARCH CORPORATION"
  82. 2026-09-06Renamed from "NETWORK RESEARCH CORPORATION" to "ROYAL MELBOURNE INST OF TECH"
  83. 2026-09-06Renamed from "ROYAL MELBOURNE INST OF TECH" to "NETWORK RESEARCH CORPORATION"
  84. 2026-09-07Renamed from "NETWORK RESEARCH CORPORATION" to "ROYAL MELBOURNE INST OF TECH"
  85. 2026-09-08Renamed from "ROYAL MELBOURNE INST OF TECH" to "NETWORK RESEARCH CORPORATION"
  86. 2026-09-09Renamed from "NETWORK RESEARCH CORPORATION" to "ROYAL MELBOURNE INST OF TECH"
  87. 2026-09-10Renamed from "ROYAL MELBOURNE INST OF TECH" to "NETWORK RESEARCH CORPORATION"
  88. 2026-09-11Renamed from "NETWORK RESEARCH CORPORATION" to "ROYAL MELBOURNE INST OF TECH"
  89. 2026-09-12Renamed from "ROYAL MELBOURNE INST OF TECH" to "NETWORK RESEARCH CORPORATION"
  90. 2026-09-13Renamed from "NETWORK RESEARCH CORPORATION" to "ROYAL MELBOURNE INST OF TECH"
  91. 2026-09-14Renamed from "ROYAL MELBOURNE INST OF TECH" to "NETWORK RESEARCH CORPORATION"
  92. 2026-09-15Renamed from "NETWORK RESEARCH CORPORATION" to "ROYAL MELBOURNE INST OF TECH"
  93. 2026-09-16Renamed from "ROYAL MELBOURNE INST OF TECH" to "NETWORK RESEARCH CORPORATION"
  94. 2026-09-17Renamed from "NETWORK RESEARCH CORPORATION" to "ROYAL MELBOURNE INST OF TECH"
  95. 2026-09-18Renamed from "ROYAL MELBOURNE INST OF TECH" to "NETWORK RESEARCH CORPORATION"
  96. 2026-09-19Renamed from "NETWORK RESEARCH CORPORATION" to "ROYAL MELBOURNE INST OF TECH"
  97. 2026-09-20Renamed from "ROYAL MELBOURNE INST OF TECH" to "NETWORK RESEARCH CORPORATION"
  98. 2026-09-21Renamed from "NETWORK RESEARCH CORPORATION" to "ROYAL MELBOURNE INST OF TECH"
  99. 2026-09-22Renamed from "ROYAL MELBOURNE INST OF TECH" to "NETWORK RESEARCH CORPORATION"
  100. 2026-09-23Renamed from "NETWORK RESEARCH CORPORATION" to "ROYAL MELBOURNE INST OF TECH"
  101. 2026-09-24Renamed from "ROYAL MELBOURNE INST OF TECH" to "NETWORK RESEARCH CORPORATION"
  102. 2026-09-25Renamed from "NETWORK RESEARCH CORPORATION" to "ROYAL MELBOURNE INST OF TECH"
  103. 2026-09-26Renamed from "ROYAL MELBOURNE INST OF TECH" to "NETWORK RESEARCH CORPORATION"
  104. 2026-09-27Renamed from "NETWORK RESEARCH CORPORATION" to "ROYAL MELBOURNE INST OF TECH"
  105. 2026-09-28Renamed from "ROYAL MELBOURNE INST OF TECH" to "NETWORK RESEARCH CORPORATION"
  106. 2026-09-29Renamed from "NETWORK RESEARCH CORPORATION" to "ROYAL MELBOURNE INST OF TECH"
  107. 2026-09-30Renamed from "ROYAL MELBOURNE INST OF TECH" to "NETWORK RESEARCH CORPORATION"
  108. 2026-10-01Renamed from "NETWORK RESEARCH CORPORATION" to "ROYAL MELBOURNE INST OF TECH"
  109. 2026-10-02Renamed from "ROYAL MELBOURNE INST OF TECH" to "NETWORK RESEARCH CORPORATION"
  110. 2026-10-03Renamed from "NETWORK RESEARCH CORPORATION" to "ROYAL MELBOURNE INST OF TECH"
  111. 2026-10-04Renamed from "ROYAL MELBOURNE INST OF TECH" to "NETWORK RESEARCH CORPORATION"
  112. 2026-10-05Renamed from "NETWORK RESEARCH CORPORATION" to "ROYAL MELBOURNE INST OF TECH"
  113. 2026-10-06Renamed from "ROYAL MELBOURNE INST OF TECH" to "NETWORK RESEARCH CORPORATION"
  114. 2026-10-07Renamed from "NETWORK RESEARCH CORPORATION" to "ROYAL MELBOURNE INST OF TECH"
  115. 2026-10-08Renamed from "ROYAL MELBOURNE INST OF TECH" to "NETWORK RESEARCH CORPORATION"
  116. 2026-10-09Renamed from "NETWORK RESEARCH CORPORATION" to "ROYAL MELBOURNE INST OF TECH"
  117. 2026-10-10Renamed from "ROYAL MELBOURNE INST OF TECH" to "NETWORK RESEARCH CORPORATION"
  118. 2026-10-11Renamed from "NETWORK RESEARCH CORPORATION" to "ROYAL MELBOURNE INST OF TECH"
  119. 2026-10-12Renamed from "ROYAL MELBOURNE INST OF TECH" to "NETWORK RESEARCH CORPORATION"
  120. 2026-10-13Renamed from "NETWORK RESEARCH CORPORATION" to "ROYAL MELBOURNE INST OF TECH"
  121. 2026-10-14Renamed from "ROYAL MELBOURNE INST OF TECH" to "NETWORK RESEARCH CORPORATION"
  122. 2026-10-15Renamed from "NETWORK RESEARCH CORPORATION" to "ROYAL MELBOURNE INST OF TECH"
  123. 2026-10-16Renamed from "ROYAL MELBOURNE INST OF TECH" to "NETWORK RESEARCH CORPORATION"
  124. 2026-10-17Renamed from "NETWORK RESEARCH CORPORATION" to "ROYAL MELBOURNE INST OF TECH"
  125. 2026-10-18Renamed from "ROYAL MELBOURNE INST OF TECH" to "NETWORK RESEARCH CORPORATION"
  126. 2026-10-19Renamed from "NETWORK RESEARCH CORPORATION" to "ROYAL MELBOURNE INST OF TECH"
  127. 2026-10-20Renamed from "ROYAL MELBOURNE INST OF TECH" to "NETWORK RESEARCH CORPORATION"
  128. 2026-10-21Renamed from "NETWORK RESEARCH CORPORATION" to "ROYAL MELBOURNE INST OF TECH"
  129. 2026-10-22Renamed from "ROYAL MELBOURNE INST OF TECH" to "NETWORK RESEARCH CORPORATION"
  130. 2026-10-23Renamed from "NETWORK RESEARCH CORPORATION" to "ROYAL MELBOURNE INST OF TECH"
  131. 2026-10-24Renamed from "ROYAL MELBOURNE INST OF TECH" to "NETWORK RESEARCH CORPORATION"
  132. 2026-10-25Renamed from "NETWORK RESEARCH CORPORATION" to "ROYAL MELBOURNE INST OF TECH"
  133. 2026-10-26Renamed from "ROYAL MELBOURNE INST OF TECH" to "NETWORK RESEARCH CORPORATION"

Nearby in the registry

The prefixes assigned immediately before and after 08:00:30:

FAQ

Which company owns MAC address prefix 08:00:30?
MAC address prefix 08:00:30 is registered to CERN in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with 08:00:30 has a network interface built by CERN.
What is the OUI 08:00:30?
08:00:30 is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to CERN. It covers every address from 08:00:30:00:00:00 to 08:00:30:FF:FF:FF, or 16,777,216 addresses in total. It is also written 08-00-30.
How do I find the manufacturer of a MAC address?
Take the first three octets of the address — in 08:00:30:00:00:00 that is 08:00:30 — and look that prefix up in the IEEE OUI registry. If the second-lowest bit of the first octet is set, the address is locally administered (a randomized or private MAC), which belongs to no manufacturer and will not resolve; modern phones and laptops use these by default on each network.
Where is CERN located?
CERN is listed at CH-1211 GENEVE SUISSE/SWITZ CH 023 in the IEEE OUI registry entry for 08:00:30. This is the address the organization registered with the IEEE, which may differ from its current operating address.
How many MAC prefixes does CERN own?
CERN holds 2 OUI prefixes in the IEEE registry, of which 08:00:30 is one. A device made by CERN could carry a MAC address from any of them.