Vendor directory
188 blocks registered in Czechia.
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Every MA-L, MA-M, MA-S, IAB, and CID block IEEE has ever assigned to a named organization, browsable or searchable.
Unique organizations160
Total blocks188
MA-L count54
MA-M count37
MA-S count57
IAB count40
Total address capacity945,164,288
Last changed hereSep 13, 2026
Country reflects the address published in the IEEE registration record. It does not indicate where a device was manufactured, sold, located or currently used.
Largest organizations in Czechia
Organization
Prefix
Type
🇨🇿 KUPSON spol. s r.o.
24:79:F8:00:00:00 /24
MA-L
🇨🇿 LEAPS s.r.o.
80:E9:4A:00:00:00 /24
MA-L
🇨🇿 LEAPS s.r.o.
68:79:12:90:00:00 /28
MA-M
🇨🇿 Lenoxi Automation s.r.o.
70:B3:D5:D8:B0:00 /36
MA-S
🇨🇿 LEVEL s.r.o.
00:1E:FE:00:00:00 /24
MA-L
🇨🇿 Lightdrop
70:B3:D5:07:20:00 /36
MA-S
🇨🇿 Loma Systems s.r.o.
70:B3:D5:5E:B0:00 /36
MA-S
🇨🇿 Lubino s.r.o.
40:D8:55:1A:90:00 /36
IAB
🇨🇿 MACH SYSTEMS s.r.o.
FC:61:79:90:00:00 /28
MA-M
🇨🇿 Meatest sro
34:D0:B8:A0:00:00 /28
MA-M
🇨🇿 Merz s.r.o.
70:B3:D5:E2:E0:00 /36
MA-S
🇨🇿 MESIT asd, s.r.o.
A0:22:4E:60:00:00 /28
MA-M
🇨🇿 METEL s.r.o.
00:23:36:00:00:00 /24
MA-L
🇨🇿 METEL s.r.o.
AC:B7:4F:00:00:00 /24
MA-L
🇨🇿 MICRORISC s.r.o.
00:1F:D5:00:00:00 /24
MA-L
🇨🇿 Mikroelektronika spol. s r. o.
00:1D:DA:00:00:00 /24
MA-L
🇨🇿 Military Research Institute
70:B3:D5:2F:70:00 /36
MA-S
🇨🇿 MITE Hradec Kralove, s.r.o.
00:50:C2:25:E0:00 /36
IAB
🇨🇿 Moravian Instruments
00:50:C2:CB:20:00 /36
IAB
🇨🇿 MSV elektronika s.r.o.
7C:83:34:D0:00:00 /28
MA-M
🇨🇿 NETIO products a.s.
24:A4:2C:00:00:00 /24
MA-L
🇨🇿 NetX Networks a.s.
44:A9:2C:40:00:00 /28
MA-M
🇨🇿 NeurIT s.r.o.
70:B3:D5:2E:90:00 /36
MA-S
🇨🇿 Openmatics s.r.o.
7C:97:63:00:00:00 /24
MA-L
🇨🇿 OPTOKON, a.s.
28:69:26:00:00:00 /24
MA-L
🇨🇿 OPTOKON, a.s.
8C:1F:64:BC:A0:00 /36
MA-S
🇨🇿 ORBIT MERRET, spol. s r. o.
B4:2A:39:00:00:00 /24
MA-L
🇨🇿 Partizan Security s.r.o.
E8:FF:1E:60:00:00 /28
MA-M
🇨🇿 POLAK CZ s.r.o.
8C:1F:64:D0:00:00 /36
MA-S
🇨🇿 Porsche engineering
8C:1F:64:DC:A0:00 /36
MA-S
🇨🇿 Princip a.s.
74:19:F8:90:00:00 /28
MA-M
🇨🇿 PROFIcomms s.r.o.
00:15:03:00:00:00 /24
MA-L
🇨🇿 Protronix s.r.o.
F0:2A:2B:70:00:00 /28
MA-M
🇨🇿 Prusa Research s.r.o.
10:9C:70:00:00:00 /24
MA-L
🇨🇿 RACOM, s.r.o.
00:02:A9:00:00:00 /24
MA-L
🇨🇿 RayService a.s.
EC:B5:AF:00:00:00 /24
MA-L
🇨🇿 RCD Radiokomunikace
70:B3:D5:22:50:00 /36
MA-S
🇨🇿 RCE systems s.r.o.
38:1F:26:70:00:00 /28
MA-M
🇨🇿 Redcap Solutions s.r.o.
70:B3:D5:02:70:00 /36
MA-S
🇨🇿 Ricardo Prague, s.r.o.
9C:F6:7D:00:00:00 /24
MA-L
🇨🇿 Ronyo Technologies s.r.o.
00:50:C2:B2:30:00 /36
IAB
🇨🇿 Sator Controls s.r.o.
70:B3:D5:F1:A0:00 /36
MA-S
🇨🇿 Seznam.cz, a.s., CZ26168685
70:B3:D5:F6:60:00 /36
MA-S
🇨🇿 Simpleway Europe a.s.
6C:2A:DF:90:00:00 /28
MA-M
🇨🇿 Sitronics Telecom Solutions
00:13:2A:00:00:00 /24
MA-L
🇨🇿 SKODA DIGITAL s.r.o.
5C:A3:EB:00:00:00 /24
MA-L
🇨🇿 SKODA ELECTRIC a.s.
90:4E:91:D0:00:00 /28
MA-M
🇨🇿 SKODA ELECTRIC a.s.
00:1B:C5:0B:20:00 /36
MA-S
🇨🇿 Softlink s.r.o.
00:04:D0:00:00:00 /24
MA-L
🇨🇿 SOLAR controls s.r.o.
E8:E9:8E:00:00:00 /24
MA-L
🇨🇿 Spedos ADS a.s.
FC:CD:2F:C0:00:00 /28
MA-M
🇨🇿 Summit Developmen
00:50:C2:51:00:00 /36
IAB
🇨🇿 SUMMIT DEVELOPMENT, spol.s r.o.
C4:AA:A1:00:00:00 /24
MA-L
🇨🇿 SVM Microwaves s.r.o.
00:0A:6A:00:00:00 /24
MA-L
🇨🇿 Tap Home, s.r.o.
70:B3:D5:25:10:00 /36
MA-S
🇨🇿 Tech Fass s.r.o.
00:50:C2:95:20:00 /36
IAB
🇨🇿 Tech Fass s.r.o.
8C:1F:64:AA:10:00 /36
MA-S
🇨🇿 TECO a.s.
00:0A:14:00:00:00 /24
MA-L
🇨🇿 Tele Data Control
00:50:C2:DC:A0:00 /36
IAB
🇨🇿 Terratel Technology s.r.o.
00:50:C2:F2:C0:00 /36
IAB
🇨🇿 Terratel Technology s.r.o.
70:B3:D5:31:A0:00 /36
MA-S
🇨🇿 Terratel Technology s.r.o.
8C:1F:64:E6:B0:00 /36
MA-S
🇨🇿 TESCAN Brno, s.r.o.
70:B3:D5:81:20:00 /36
MA-S
🇨🇿 TESCAN GROUP, a.s.
8C:1F:64:10:90:00 /36
MA-S
🇨🇿 TESCAN, s.r.o.
00:50:C2:82:00:00 /36
IAB
🇨🇿 TESLA, a.s.
00:50:C2:4B:20:00 /36
IAB
🇨🇿 Tokoz a.s.
C0:EA:C3:40:00:00 /28
MA-M
🇨🇿 Trade FIDES, a.s.
80:20:AF:00:00:00 /24
MA-L
🇨🇿 Trakce a.s.
00:50:C2:89:20:00 /36
IAB
🇨🇿 Transcon Electronic Systems, spol. s r. o.
00:21:16:00:00:00 /24
MA-L
🇨🇿 TRIUMPH BOARD a.s.
70:B3:D5:D5:70:00 /36
MA-S
🇨🇿 Tronic Control ltd.
40:D8:55:06:70:00 /36
IAB
🇨🇿 TTC MARCONI s.r.o.
88:96:76:00:00:00 /24
MA-L
🇨🇿 TTC TELEKOMUNIKACE Ltd
00:50:C2:3D:70:00 /36
IAB
🇨🇿 TTC TELEKOMUNIKACE, s.r.o.
70:B3:D5:6B:10:00 /36
MA-S
🇨🇿 TTC TELEKOMUNIKACE, s.r.o.
8C:1F:64:E4:C0:00 /36
MA-S
🇨🇿 UniControls a.s.
00:23:67:00:00:00 /24
MA-L
🇨🇿 Unipi Technology s.r.o.
60:15:92:70:00:00 /28
MA-M
🇨🇿 VNT electronics s.r.o.
F8:2B:E6:50:00:00 /28
MA-M
🇨🇿 VNT electronics s.r.o.
70:B3:D5:0E:90:00 /36
MA-S
🇨🇿 Vojensky Technicky Ustav, s.p.
8C:1F:64:B5:10:00 /36
MA-S
🇨🇿 Vytahy-Vymyslicky s.r.o.
8C:1F:64:73:70:00 /36
MA-S
🇨🇿 WM Design s.r.o
70:B3:D5:D5:50:00 /36
MA-S
🇨🇿 Y Soft Corporation, a.s.
68:7C:D5:00:00:00 /24
MA-L
🇨🇿 ZAT a.s.
00:16:D1:00:00:00 /24
MA-L
🇨🇿 ZELPOS
00:50:C2:09:D0:00 /36
IAB
🇨🇿 ZPA Smart Energy a.s.
C0:BD:42:00:00:00 /24
MA-L
🇨🇿 ZPT Vigantice
C4:62:6B:00:00:00 /24
MA-L
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