| Section
| Date
| Issue
| Size
| Title
|
| 623-000-000 | 1980-11-01 | 12 | 95.37 KB | Numerical Index - Division 623 - Open Wire |
| 623-000-000PT X1 | 1979-11-01 | H | 49.50 KB | Pacific Tel. Numerical Index - Division 623 - Open Wire |
| 623-104-010 | 1968-03-01 | 1 | 175.86 KB | Open Wire - Grounding Nonworking Wire |
| 623-190-200 | 1968-03-01 | 1 | 1.34 MB | Open Wire - 104-Type Protector |
| 623-190-220 | 1968-07-01 | 1 | 521.30 KB | Short-Circuiting Relay Protectors - Testing |
| 623-195-205 | 1968-06-01 | 1 | 1021.30 KB | Open Wire - 116-Type Protectors |
| 623-200-215 | 1969-12-01 | 1 | 450.21 KB | Open Wire - Installation of RS Copper Sleeves |
| 623-230-201 | 1967-08-01 | 6RP | 175.00 KB | Open Wire - Dead Ending |
| 623-235-011 | 1952-08-01 | 1 | 55.12 KB | Open Wire - Tying - General |
| 623-235-202 | 1952-08-01 | 1 | 126.47 KB | Open Wire - Tying - Position of Wire on Insulator |
| 623-235-203 | 1952-08-01 | 1 | 120.21 KB | Open Wire - Tying - Spiral and Modified Spiral Ties |
| 623-235-204 | 1952-08-01 | 1 | 79.04 KB | Open Wire - Tying - Standard, Modified Horseshoe and Horseshoe Ties |
| 623-300-201 | 1953-01-01 | 1 | 212.28 KB | Open Wire - Bridling Runs |
| 623-300-201 | 1975-07-01 | 2 | 266.48 KB | Open Wire - Bridling Runs |
| 623-300-202 | 1955-08-01 | 2 | 202.39 KB | Open Wire - Bridling to Line Wire |
| 623-310-201 | 1933-12-01 | 1 | 233.77 KB | Open Wire - Side Lead Terminations |
| 623-400-201 | 1931-03-01 | 1I | 160.86 KB | Open Wire - Non-Catenary Long Span Construction |
| 623-400-211 | 1931-03-01 | 1 | 782.93 KB | Open Wire - Catenary Long Span Construction |
| 623-500-240 | 1961-07-01 | 2 | 358.62 KB | Open Wire Removal |
| 623-800-600 | 1932-08-01 | 1 | 250.69 KB | Open Wire - Inspecting |
| 623-820-300 | 1932-08-01 | 1 | 197.02 KB | Open Wire - Repairing |
| 623-820-301 | 1954-06-01 | 1 | 291.39 KB | Open Wire - Emergency Restoration of Service |
| 623-820-302 | 1964-06-01 | 2 | 183.79 KB | Restoration of Carrier Circuits - Use of 24A Autotransformer with C Rural Wire |