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4 ASCII characters

Needs to be set for the OLT to authenticate your ONT; please read your original ONT’s Serial Number, it can be either in HEX or ASCII: if it’s codified in HEX, you need to convert the first eight HEX digits to ASCII, for example 48575443 = HWTC.

Here is a list of the most popular Vendor IDs:

ID HEX ID Vendor Name
ALCL 414c434c Nokia/Alcatel-Lucent
AVMG 41564d47 AVM (FRITZ!Box)
ASKY 41534b59 Askey
CDKT 43444B54 KingType
CIGG 43494747 Cig
CXNK 43584e4b Calix
DDKT 44444b54 DKT
DLNK 444c4e4b Dlink
DSNW 44534e57 DASAN
ELTX 454c5458 Eltex
FHTT 46485454 FiberHome
GMTK 474d544b GemTek
GNXS 474e5853 Genexis
GPON 47504f4e Generic vendor name
GTHG 47544847 Alcatel-Lucent (ODM)
HALN 48414c4e HALNy
HBMT 48424d54 HiSense
HUMA 48554d41 Humax
HWTC 48575443 Huawei
ICTR 49435452 Icotera
ISKT 49534b54 Iskratel
KAON 4b414f4e KAONMEDIA
LEOX 4c454f58 LEOX
LQDE 4c514445 Lantiq
NOKG 4e4f4b47 Nokia (GemTek ODM)
NOKW 4e4f4b57 Nokia (GemTek ODM)
MSTC 4d535443 Mitrastar
PTIN 5054494e Altice/PT Inovação
RTKG 52544b47 Realtek
SCOM 53434f4d Sercomm
SKYW 534b5957 Skyworth
SMBS 534d4253 Sagemcom
SPGA 53504741 SourcePhotonics
TMBB 544d4242 Technicolor
TPLG 54504c47 TP-Link
UBNT 55424e54 Ubiquiti
UGRD 55475244 UGrid
YHTC 59485443 Youhua
ZRMT 5a524d54 Zaram
ZTEG 5a544547 ZTE
ZYWN 5a59574e Zyxel
ZYXE 5a595845 Zyxel