00:21:5A Hewlett Packard
Every MAC address from 00:21:5A:00:00:00 to 00:21:5A:FF:FF:FF belongs to a block the IEEE assigned to Hewlett Packard. Network cards, phones and other devices it makes carry addresses from here.
Assignment
Who 00:21:5A belongs to
Written 00:21:5A, 00-21-5A or 00215A, depending on the system. Look up a full address.
Prefix
00:21:5A
Organization
Hewlett Packard
Registry
MA-L (a 24-bit OUI)
Addresses
16,777,216
First address
00:21:5A:00:00:00
Last address
00:21:5A:FF:FF:FF
Address type
Globally unique, unicast
Registered address
20555 State Highway 249 Houston TX US 77070
Same organization
Other blocks assigned to Hewlett Packard
149 more blocks registered under the same name.
00:01:E600:01:E700:02:A500:04:EA00:08:0200:08:8300:08:C700:0A:5700:0B:CD00:0D:9D00:0E:7F00:0E:B300:0F:2000:0F:6100:10:8300:10:E300:11:0A00:11:8500:12:7900:13:2100:14:C200:15:6000:16:3500:17:0800:17:A400:18:7100:18:FE00:19:BB00:1A:4B00:1B:7800:1C:C400:1E:0B00:1F:2900:22:6400:23:7D00:24:8100:25:B300:26:5500:30:6E00:30:C100:50:8B00:60:B000:80:5F00:80:A000:9C:0208:00:0908:2E:5F10:1F:7410:60:4B10:62:E510:E7:C614:58:D018:60:2418:A9:051C:C1:DE24:BE:0528:80:2328:92:4A2C:23:3A2C:27:D72C:41:382C:44:FD2C:59:E52C:76:8A30:8D:9930:E1:7134:64:A938:63:BB38:EA:A73C:4A:923C:52:823C:A8:2A3C:D9:2B40:A8:F040:B0:3444:1E:A144:31:9248:0F:CF48:BA:4E50:65:F358:20:B15C:8A:385C:B9:0164:31:5064:51:0668:B5:996C:3B:E56C:C2:1770:5A:0F74:46:A078:48:5978:AC:C078:E3:B578:E7:D180:C1:6E80:CE:6280:E8:2C84:34:9784:A9:3E88:51:FB8C:DC:D494:57:A598:4B:E198:E7:F49C:7B:EF9C:8E:999C:B6:54A0:1D:48A0:2B:B8A0:48:1CA0:8C:FDA0:B3:CCA0:D3:C1A4:5D:36AC:16:2DAC:E2:D3B0:0C:D1B0:5A:DAB4:99:BAB4:B5:2FB4:B6:86B8:AF:67BC:EA:FAC4:34:6BC4:65:16C8:CB:B8C8:D3:FFC8:D9:D2CC:3E:5FD0:7E:28D0:BF:9CD4:85:64D4:C9:EFD8:9D:67D8:D3:85DC:4A:3EE4:11:5BE4:E7:49E8:39:35EC:8E:B5EC:9A:74EC:B1:D7F0:92:1CF4:30:B9F4:39:09F4:CE:46F8:B4:6AFC:15:B4FC:3F:DB