| ADTN | ADTRAN |
| LITE | Lumentum |
| JNPR | Juniper Networks |
| GILT | Gilat Satellite Networks |
| VIAV | Viavi Solutions |
| INFN | Infinera |
| MSI | Motorola Solutions |
| CMTL | Comtech Telecommunications |
| AAOI | Applied Optoelectronics |
| CLFD | Clearfield |
| HPE | Hewlett Packard Enterprise Company |
| NTGR | NETGEAR |
| HLIT | Harmonic |
| DGII | Digi |
| EXTR | Extreme Networks |