Species: Common rat (Rattus norvegicus)
| Område | Kommune (fylke) | Ant. obs. | Ant. arter | Ant. bilder | Siste obs. | |
|---|---|---|---|---|---|---|
| 31A Sagaveien | Akershus, Norway | 1 | 1 | 0 | 2025-01-26 | |
| Aallsgate | Telemark, Norway | 2 | 1 | 0 | 2024-01-27 | |
| Aasgaarden 18 | Vestfold, Norway | 1 | 1 | 0 | 2025-01-25 | |
| Abbedissevegen 67 | Vestland, Norway | 1 | 1 | 0 | 2022-01-24 | |
| Alvsvåg | Vestland, Norway | 1 | 1 | 0 | 2023-01-29 | |
| Andøytoppen 16 | Agder, Norway | 1 | 1 | 0 | 2016-02-05 | |
| Andøytoppen 16 | Agder, Norway | 1 | 1 | 0 | 2016-01-30 | |
| Arendal havneområde | Agder, Norway | 2 | 1 | 0 | 1993-11-19 | |
| Arnebråtveien 16 | Oslo, Norway | 1 | 1 | 0 | 2021-01-30 | |
| Arvid Andresens vei 2A | Akershus, Norway | 1 | 1 | 0 | 2023-01-29 | |
| Augestadveien 16 | Akershus, Norway | 1 | 1 | 0 | 2025-01-22 | |
| Auli | Akershus, Norway | 1 | 1 | 0 | 2025-01-26 | |
| Auli | Akershus, Norway | 1 | 1 | 0 | 2013-01-26 | |
| Austbøvegen 71 | Rogaland, Norway | 1 | 1 | 0 | 2021-01-31 | |
| Austre Steinsvikåsen 21 | Vestland, Norway | 2 | 1 | 0 | 2023-02-02 | |
| Bakgården | Østfold, Norway | 1 | 1 | 0 | 2015-01-19 | |
| Bakkehuset | Trøndelag, Norway | 1 | 1 | 0 | 2018-01-28 | |
| Baldersvei | Akershus, Norway | 1 | 1 | 0 | 2025-01-26 | |
| Balkongen | Akershus, Norway | 1 | 1 | 0 | 2018-01-22 | |
| Barneskjær | Vestfold, Norway | 1 | 1 | 0 | 1996-09-26 | |
| Bastøy | Vestfold, Norway | 1 | 1 | 0 | 1993-10-12 | |
| Bebygd område | Innlandet, Norway | 1 | 1 | 0 | 2017-01-23 | |
| Bebygd område/lokalmiljø | Trøndelag, Norway | 1 | 1 | 0 | 2013-01-26 | |
| Bekkelagshøgda | Oslo, Norway | 3 | 1 | 0 | 2021-01-30 | |
| Bekkelagsskråningen, hage | Oslo, Norway | 3 | 1 | 0 | 2025-01-28 | |
| Bekken | Trøndelag, Norway | 1 | 1 | 0 | 2018-01-21 | |
| Bekkestua | Akershus, Norway | 2 | 1 | 0 | 2023-02-05 | |
| Bergliveien 40 | Akershus, Norway | 1 | 1 | 0 | 2019-01-26 | |
| Bergsåsveien 36 | Vestfold, Norway | 1 | 1 | 0 | 2024-01-27 | |
| Blekebakklia 10 | Telemark, Norway | 1 | 1 | 0 | 2023-01-29 | |
| Blokknr 104 | Vestfold, Norway | 1 | 1 | 0 | 1996-10-18 | |
| Blokknr 40 | Troms, Norway | 1 | 1 | 0 | 1997-10-09 | |
| Blokknr 40 | Rogaland, Norway | 1 | 1 | 0 | 1995-08-29 | |
| Blokknr 54 | Møre og Romsdal, Norway | 1 | 1 | 0 | 1997-10-01 | |
| Blokknr 95 | Vestfold, Norway | 2 | 1 | 0 | 1996-09-18 | |
| Bogen | Vestfold, Norway | 2 | 1 | 0 | 1999-10-21 | |
| Borgenveien 9 | Oslo, Norway | 1 | 1 | 0 | 2022-01-30 | |
| Botngård | Trøndelag, Norway | 2 | 1 | 0 | 1995-10-04 | |
| Bratteberggata 4 | Rogaland, Norway | 2 | 1 | 0 | 2023-01-28 | |
| Brekkeveien | Akershus, Norway | 1 | 1 | 0 | 2025-01-25 | |
| Bringebærhagen 12 | Akershus, Norway | 1 | 1 | 0 | 2018-01-16 | |
| Brunsvika | Møre og Romsdal, Norway | 2 | 1 | 0 | 2022-01-30 | |
| Brødholt, Tomter | Østfold, Norway | 1 | 1 | 0 | 2025-01-24 | |
| Bråtan11 Drammen | Buskerud, Norway | 1 | 1 | 0 | 2017-02-02 | |
| Budal | Vestfold, Norway | 1 | 1 | 0 | 1994-11-30 | |
| By | Telemark, Norway | 2 | 1 | 0 | 2021-02-03 | |
| Bygdøy | Oslo, Norway | 1 | 1 | 0 | 1996-10-21 | |
| Byåsen, Trondheim | Trøndelag, Norway | 1 | 1 | 0 | 2022-01-30 | |
| Bærumsveien 115 | Akershus, Norway | 4 | 1 | 0 | 2025-01-25 | |
| Bø - Tunge | Rogaland, Norway | 3 | 1 | 0 | 1994-12-01 |