CI
IEEE Registrant 24 Prefixes

Calix Inc.

www.calix.com

Calix Inc., accessible at www.calix.com, manages 24 unique MAC address prefixes. These prefixes have a total block size of 402.7 million addresses.

The allocation includes the following types: CID(Company Identifier, not for globally unique applications) and MA-L(MAC Address Block Large, 16,777,216 addresses each).

The company registered its MAC address allocation on 04 June 2001, and the most recent update was made on 16 September 2026. These allocations support network identification and communication globally.

Unique prefixes 24
Block Size 402653160 (402.65 M)
First registration 04 June 2001
Last updated 16 September 2026

Entity Details

Unique prefixes 24
Block Size 402653160 (402.65 M)
Website www.calix.com
First registration 04 June 2001
Last updated 16 September 2026

Types

CID: Block Type

Company Identifier. This prefix will not be used for globally unique applications. Number of address 2^24 (~16 Million)

MA-L: Block Type

Mac Address Block Large (previously named OUI). Number of address 2^24 (~16 Million)

Registered MAC Prefixes

All Organizationally Unique Identifiers and MAC ranges assigned to this vendor

24 Records
MAC PrefixTypeRegistration Date
00:06:31 MA-L2001-06-04
04:BC:9F MA-L2022-01-06
10:03:CD MA-L2025-12-15
10:74:C5 MA-L2024-07-16
10:7E:59 MA-L2026-09-16
14:21:03 MA-L2022-06-14
1C:8B:76 MA-L2022-06-14
34:C2:29 MA-L2026-09-16
40:E7:62 MA-L2025-12-15
44:65:7F MA-L2018-04-25
48:77:46 MA-L2019-02-25
4C:43:41 MA-L2023-06-05
5C:DB:36 MA-L2024-07-16
60:DB:98 MA-L2020-09-10
84:D3:43 MA-L2020-11-24
88:DA:36 MA-L2025-06-02
B8:94:70 MA-L2021-07-10
CC:BE:59 MA-L2016-11-17
D0:76:8F MA-L2020-03-21
DA:9D:49 CID2022-02-19
E0:49:34 MA-L2025-06-02
E4:6C:D1 MA-L2023-06-05
EC:4F:82 MA-L2015-11-17
F8:85:F9 MA-L2020-12-22