| Company | Model Family | Modem | Version | Date Released |
| IBM | ISA | 56K/33.6 Kbps PnP D/F | N/A | N/A (V.90 Update is available) |
| 56K Modem Internet Kit | N/A | N/A (V.90 Update is available) | ||
| PCMCIA | 56K PC Card Modem Kit | N/A | N/A (V.90 Update is available) | |
| 56K PC Card Modem/Cellular | N/A | N/A (V.90 Update is available) |
| Company | Model Family | Modem | Version | Date Released |
| Jaton | K56flex modems | N/A | v2.012 | 2/20/98 |
| Cirrus 56 | N/A | v5.40 | 5/29/98 | |
| TU-T V.90 56K | N/A | N/A | 4/24/98 | |
| TU-T V.90 56K | N/A | 6.00 | 5/29/98 |
| Company | Model Family | Modem | Version | Date Released |
| KTX Australia | ALL | ALL/td> | N/A | N/A (No Firmware Updates available) |
| Company | Model Family | Modem | Version | Date Released |
| Livingston | PortMaster | PortMaster 3 | 3.8b15 | N/A (V.90 Update available) |
| Company | Model Family | Modem | Version | Date Released |
| MagicXpress | ALL | ALL | N/A | N/A (V.90 Update NOT available) |
| Company | Model Family | Modem | Version | Date Released |
| Magitronic | Internal 56k | A-FAX56kX2 | N/A | N/A (V.90 Update available) |
| A-FAX56kFLEX | N/A | N/A (V.90 Update available) |
| Company | Model Family | Modem | Version | Date Released |
| MaxTech | Internal 56k | XPM56I | 2.012 | N/A (V.90 Update available) |
| PC Card 56k | XPM56I and XPVS56I/R | N/A | N/A (V.90 Update available) | |
| XPV56I/L41B | N/A | N/A (V.90 Update available) | ||
| XPVS56I/F | N/A | N/A (V.90 Update available) |
| Company | Model Family | Modem | Version | Date Released |
| MIN Communications | Internal 56k | XPM56I | 2.012 | N/A (V.90 Update available) |
| Company | Model Family | Modem | Version | Date Released |
| Modular Technology | Internal/External PC 56k | ALL | V2.083 | N/A (V.90 Update available) |
| Mac External 56k | ALL | N/A | N/A (V.90 Update available) |
| Company | Model Family | Modem | Version | Date Released |
| Motorola | Modem SURFR | ALL | N/A | N/A (V.90 Update available) |
| VoiceSURFR | ALL | N/A | N/A (V.90 Update available) |
| Company | Model Family | Modem | Version | Date Released |
| Multi-Tech | N/A | MT5634HD16 | 2.04C | N/A (V.90 Update available) |
| N/A | MT5634HD8 | 1.04C | N/A (V.90 Update available) | |
| N/A | MT5600DSVD | 2.200 | N/A (V.90 Update available) | |
| N/A | MT5634ZBA | 4.12 | N/A (V.90 Update available) | |
| N/A | MT5634ZBA and MT5634ZBAV | 4.12 | N/A (V.90 Update available) | |
| N/A | MT5634ZLX | 1.12 | N/A (V.90 Update available) | |
| N/A | MT5634ZLX/E | 1.09D | N/A (V.90 Update available) | |
| N/A | MT5634ZPX/E | 4.12 | N/A (V.90 Update available) | |
| N/A | MT5600ZDX/E and MT5600ZDXV | 2.083 & 2.100 | N/A (V.90 Update available) | |
| N/A | MultiModem ZPW MT5634ZPW | 5.15A | N/A (V.90 Update available) | |
| N/A | MT56128NTZLX | 1.12b | N/A (V.90 Update available) | |
| N/A | MT5600ZDX-I PTT and MT5600ZDXV-I PTT | 2.083 & 2.200f | N/A (V.90 Update available) | |
| N/A | MT56128STZLX | 1.12b | N/A (V.90 Update available) | |
| N/A | MT5634ZBAI-PTT | 4.12 | N/A (V.90 Update available) | |
| N/A | MT5634ZLX/E-T/2, MTASR3-200, and MTPSR3-200 | N/A | N/A (V.90 Update NOT available) |
| Company | Model Family | Modem | Version | Date Released |
| PhoebeMicro | N/A | CMV1456VQH-PLUS & CMV1456VQH-RV.90 & CMV1456VQE-R | N/A | N/A (V.90 Update available) |
| N/A | CMV1456VQH-X & CMV1456VQE-X | N/A | N/A (V.90 Update available) | |
| N/A | CMV56KRA | N/A | N/A (V.90 Update available) | |
| N/A | CMV56KCL | N/A | N/A (V.90 Update available) | |
| N/A | CMV1456VQH-P | N/A | N/A (V.90 Update available) | |
| N/A | CMVRA56K and CM1456VQC-T | N/A | N/A (V.90 Update available) | |
| N/A | CM56KPCMCIA and CM56KPCMCIA-T | N/A | N/A (V.90 Update available) | |
| N/A | CM56KPCMCIA and CM56KPCMCIA-T | N/A | N/A (V.90 Update available) |
| Company | Model Family | Modem | Version | Date Released |
| Practical Peripherals | Internal | PM K56Flex HC -- 4722 | N/A | N/A (V.90 Update available) |
| PM336/K56Flex Upgradeable HC -- 4718 | N/A | N/A (V.90 Update available) | ||
| PM 56K HC (X2) -- 8601 | N/A | N/A (V.90 Update available) | ||
| US-PM K56Flex HC VOICE -- 5672 | N/A | N/A (V.90 Update available) | ||
| US-PM K56Flex HC -- 5676 | N/A | N/A (V.90 Update available) | ||
| External | PM336/K56Flex Upgradeable MT -- 4719 | N/A | N/A (V.90 Update available) | |
| PM K56Flex MT -- 4721 | N/A | N/A (V.90 Update available) | ||
| PM K56flex MT -- 4709 | N/A | N/A (V.90 Update available) | ||
| PM 56K MTII (X2) -- 8600 | N/A | N/A (V.90 Update available) | ||
| US-PM K56 Flex MT -- 5677 | N/A | N/A (V.90 Update available) | ||
| PC Card | PP PC Card 56K D/F T2 -- 4705 | N/A | N/A (V.90 Update available) | |
| PP PC CARD 56K D/F T2 -- 5688 | N/A | N/A (V.90 Update available) | ||
| Practical 336/56K Upgradeable T2 -- 4720 | N/A | N/A (V.90 Update available) |
| Company | Model Family | Modem | Version | Date Released |
| Psion Dacom | N/A | Global 56k | N/A | N/A (V.90 Update available) |
| NetGlobal 56k + 10Mb | N/A | N/A (V.90 Update available) | ||
| Gold Card 56k + ISDN | N/A | N/A (V.90 Update available) |
| Company | Model Family | Modem | Version | Date Released |
| Puretek | ALL | Refer to http://www.puretek.com/html/upgrade.html | N/A | N/A |
| Company | Model Family | Modem | Version | Date Released |
| Shiva | N/A | LanRover Access Switch | v4.5.7 | N/A (V.90 Update available |
| LanRover D56 | v4.5.8 | N/A (V.90 Update available |
| Company | Model Family | Modem | Version | Date Released |
| Sirius Technologies | ALL | ALL | N/A | N/A (V.90 Update NOT available) Being tested for older models, and recent models come with v.90 |
| Company | Model Family | Modem | Version | Date Released |
| SMART Modular Technologies | N/A | 56K V90 PCI Modem | v5.16 | N/A (V.90 Update available) |
| N/A | Rapid Transit 56K ISA | v5.16 | N/A (V.90 Update available) | |
| N/A | Rapid Transit 56K ISA | v5.16 | N/A (V.90 Update available) |
| Company | Model Family | Modem | Version | Date Released |
| Tornado | ALL | ALL | N/A | N/A (V.90 Update NOT available) |
| Company | Model Family | Modem | Version | Date Released |
| TDK Systems | CyberExpress 5600 | ALL (NT, 95/98, Mac) | N/A | N/A (V.90 Update available) |
| Global Freedom 5660 | ALL (NT, 95/98, Mac) | N/A | N/A (V.90 Update available) |
| Company | Model Family | Modem | Version | Date Released |
| Viking Components | PC Card | Viking 56Kflex PC Card | N/A | N/A (V.90 Update available) |
| ISA | 56K Controllerless FM56KICL, and RFM56KICLA | N/A | N/A (V.90 Update available) | |
| 56K Data/Fax FM56KIA | N/A | N/A (V.90 Update available) | ||
| 56K ISA w/Voice, Speaker FM56KISPA | N/A | N/A (V.90 Update available) |
| Company | Model Family | Modem | Version | Date Released |
| Well Communication Co. (Origo) | Rockwell 56K Modem (ACF) | FM-56SA-RW, FM-56PC-RW | N/A | N/A (V.90 Update available) |
| Rockwell PCI 56K Modem (HCF) | FM-56PCI-RW | N/A | N/A (V.90 Update available) | |
| PCtel 56K Modem | FM-56PC-PT | N/A | N/A (V.90 Update available) | |
| TI 56K Modem | FM-56SA-TI, FM-56PC-TI | N/A | N/A (V.90 Update available) |
| Company | Model Family | Modem | Version | Date Released |
| Xircom | Ethernet+Modem | RealPort CardBus Ethernet 10/100+Modem 56 (RBEM56G) | v2.05 | 10/27/98 |
| CardBus Ethernet 10/100+Modem 56 (CBEM56G) | v2.05 | 10/27/98 | ||
| RealPort Ethernet 10/100+Modem 56 GlobalACCESS (REM56G-100) | v2.04 | 09-30-98 | ||
| RealPort Ethernet+Modem 56 GlobalACCESS (REM56G-10) | v2.04 | 09-30-98 | ||
| CreditCard Ethernet 10/100+ Modem 56 (CEM56) | v2.04 | 09-30-98 | ||
| Modems | RealPort Modem 56 GlobalACCESS (RM56G) | v2.04 | 09-30-98 | |
| CreditCard Modem 33.6 Upgradable (CM33U) | v1.32 | 11-17-98 | ||
| CreditCard Modem 56 (CM56) | v1.32 | 11-16-98 | ||
| CreditCard Modem 56T (CM56T) | v1.10 | 10-05-98 | ||
| CreditCard Modem 56 GlobalACCESS (CM56G) | v2.04 | 09-30-98 |
| Company | Model Family | Modem | Version | Date Released |
| Zoltrix | 56,000 Modems | FMVSP56e, FMVSP56e3 (External) | v2.200 | 09/24/98 |
| FMVSP56i, FMVSP56i2 (Internal) | v2.200 | 09/24/98 | ||
| FMVSP56i3 (Internal) | v2.200 | 10/26/98 | ||
| FMPCM56f (PCMCIA) | N/A | 9/15/98 | ||
| FMHCF56i (Internal) Spirit 56K | 212135 | 10/12/98 | ||
| FMHSP56p (Internal) | pt755S8 | 09/04/98 | ||
| FMHSP56PCI (Internal) Phantom 56K | R761 | 10/20/98 | ||
| FMHSP56PCI (Internal) Phantom 56K | R761 | 10/20/98 |
| Company | Model Family | Modem | Version | Date Released |
| Zoom | N/A | 2805C, 2818, 2818A, 2819, 2819A, 2822, 2901, 2836A, 2837A, 2838A, 2845, 2848, 2849, 2849A, 2875A, 2876 | N/A | N/A (V.90 Update available) |