Pompey will discover their first round Carabao Cup opponents when the draw takes place later this week.
John Barnes and Ray Parlour will select the fixtures, which will be regionalised into southern and northern sections.
The draw will be held at a Morrisons supermarket in Colindale, London at 7pm on Thursday (June 20).
It will include all League One and League Two clubs – including competition debutants Salford – and 22 sides from the Championship.
Recently relegated Huddersfield are in the hat, while Cardiff and Fulham join in the second round, alongside those Premier League teams that are not competing in Europe.
The matches are scheduled to take place in the week commencing August 12.
Carabao Cup Southern Section
| Number | Team |
| 1 | AFC Wimbledon |
| 2 | Birmingham City |
| 3 | Brentford |
| 4 | Bristol City |
| 5 | Bristol Rovers |
| 6 | Cambridge United |
| 7 | Charlton Athletic |
| 8 | Cheltenham Town |
| 9 | Colchester United |
| 10 | Coventry City |
| 11 | Crawley Town |
| 12 | Exeter City |
| 13 | Forest Green Rovers |
| 14 | Gillingham |
| 15 | Ipswich Town |
| 16 | Leyton Orient |
| 17 | Luton Town |
| 18 | Millwall |
| 19 | Milton Keynes Dons |
| 20 | Newport County |
| 21 | Northampton Town |
| 22 | Oxford United |
| 23 | Peterborough United |
| 24 | Plymouth Argyle |
| 25 | POMPEY |
| 26 | Queens Park Rangers |
| 27 | Reading |
| 28 | Southend United |
| 29 | Stevenage |
| 30 | Swansea City |
| 31 | Swindon Town |
| 32 | Walsall |
| 33 | West Bromwich Albion |
| 34 | Wycombe Wanderers |
Carabao Cup Northern Section
| Number | Team |
| 1 | Accrington Stanley |
| 2 | Barnsley |
| 3 | Blackburn Rovers |
| 4 | Blackpool |
| 5 | Bolton Wanderers |
| 6 | Bradford City |
| 7 | Burton Albion |
| 8 | Bury |
| 9 | Carlisle United |
| 10 | Crewe Alexandra |
| 11 | Derby County |
| 12 | Doncaster Rovers |
| 13 | Fleetwood Town |
| 14 | Grimsby Town |
| 15 | Huddersfield Town |
| 16 | Hull City |
| 17 | Leeds United |
| 18 | Lincoln City |
| 19 | Macclesfield Town |
| 20 | Mansfield Town |
| 21 | Middlesbrough |
| 22 | Morecambe |
| 23 | Nottingham Forest |
| 24 | Oldham Athletic |
| 25 | Port Vale |
| 26 | Preston North End |
| 27 | Rochdale |
| 28 | Rotherham United |
| 29 | Salford City |
| 30 | Scunthorpe United |
| 31 | Sheffield Wednesday |
| 32 | Shrewsbury Town |
| 33 | Stoke City |
| 34 | Sunderland |
| 35 | Tranmere Rovers |
| 36 | Wigan Athletic |