| npa-nxx | State | Company | FRN | RMD | OCN | Rate Center | CLLI | Assign Date | Misc |
| 920-266 | WI | WISCONSIN BELL INC (AT&T) | N/A | 9327 | FONDDU LAC | FDULWI01DS0 | 00/00/0000 | Prefix Type: RBOC Switch Name: FOND DU LAC Switch Type: DMS100 LATA: southeastern WI (356) Tandem: MILWWI4561T Detailed Switch Info | |
| Thousands block for 920-266 | |||||||||
| 920-266-0 | WI | WISCONSIN BELL INC (AT&T) | N/A | 9327 | FONDDU LAC | FDULWI01DS0 | N/A | Prefix Type: RBOC Switch Name: FOND DU LAC Switch Type: DMS100 LATA: southeastern WI (356) Tandem: MILWWI4561T Detailed Switch Info | |
| 920-906 | WI | WISCONSIN BELL INC (AT&T) | N/A | 9327 | FONDDU LAC | FDULWI01DS0 | 00/00/0000 | Prefix Type: RBOC Switch Name: FOND DU LAC Switch Type: DMS100 LATA: southeastern WI (356) Tandem: MILWWI4561T Detailed Switch Info | |
| Thousands block for 920-906 | |||||||||
| 920-906-0 | WI | WISCONSIN BELL INC (AT&T) | N/A | 9327 | FONDDU LAC | FDULWI01DS0 | N/A | Prefix Type: RBOC Switch Name: FOND DU LAC Switch Type: DMS100 LATA: southeastern WI (356) Tandem: MILWWI4561T Detailed Switch Info | |
| 920-906-1 | WI | WISCONSIN BELL INC (AT&T) | N/A | 9327 | FONDDU LAC | FDULWI01DS0 | N/A | Prefix Type: RBOC Switch Name: FOND DU LAC Switch Type: DMS100 LATA: southeastern WI (356) Tandem: MILWWI4561T Detailed Switch Info | |
| 920-906-2 | WI | WISCONSIN BELL INC (AT&T) | N/A | 9327 | FONDDU LAC | FDULWI01DS0 | N/A | Prefix Type: RBOC Switch Name: FOND DU LAC Switch Type: DMS100 LATA: southeastern WI (356) Tandem: MILWWI4561T Detailed Switch Info | |
| 920-906-3 | WI | WISCONSIN BELL INC (AT&T) | N/A | 9327 | FONDDU LAC | FDULWI01DS0 | N/A | Prefix Type: RBOC Switch Name: FOND DU LAC Switch Type: DMS100 LATA: southeastern WI (356) Tandem: MILWWI4561T Detailed Switch Info | |
| 920-906-4 | WI | WISCONSIN BELL INC (AT&T) | N/A | 9327 | FONDDU LAC | FDULWI01DS0 | N/A | Prefix Type: RBOC Switch Name: FOND DU LAC Switch Type: DMS100 LATA: southeastern WI (356) Tandem: MILWWI4561T Detailed Switch Info | |
| 920-906-5 | WI | WISCONSIN BELL INC (AT&T) | N/A | 9327 | FONDDU LAC | FDULWI01DS0 | N/A | Prefix Type: RBOC Switch Name: FOND DU LAC Switch Type: DMS100 LATA: southeastern WI (356) Tandem: MILWWI4561T Detailed Switch Info | |
| 920-906-6 | WI | WISCONSIN BELL INC (AT&T) | N/A | 9327 | FONDDU LAC | FDULWI01DS0 | N/A | Prefix Type: RBOC Switch Name: FOND DU LAC Switch Type: DMS100 LATA: southeastern WI (356) Tandem: MILWWI4561T Detailed Switch Info | |
| 920-906-9 | WI | WISCONSIN BELL INC (AT&T) | N/A | 9327 | FONDDU LAC | FDULWI01DS0 | N/A | Prefix Type: RBOC Switch Name: FOND DU LAC Switch Type: DMS100 LATA: southeastern WI (356) Tandem: MILWWI4561T Detailed Switch Info | |
| 920-907 | WI | WISCONSIN BELL INC (AT&T) | N/A | 9327 | FONDDU LAC | FDULWI01DS0 | 00/00/0000 | Prefix Type: RBOC Switch Name: FOND DU LAC Switch Type: DMS100 LATA: southeastern WI (356) Tandem: MILWWI4561T Detailed Switch Info | |
| Thousands block for 920-907 | |||||||||
| 920-907-0 | WI | WISCONSIN BELL INC (AT&T) | N/A | 9327 | FONDDU LAC | FDULWI01DS0 | N/A | Prefix Type: RBOC Switch Name: FOND DU LAC Switch Type: DMS100 LATA: southeastern WI (356) Tandem: MILWWI4561T Detailed Switch Info | |
| 920-907-1 | WI | WISCONSIN BELL INC (AT&T) | N/A | 9327 | FONDDU LAC | FDULWI01DS0 | N/A | Prefix Type: RBOC Switch Name: FOND DU LAC Switch Type: DMS100 LATA: southeastern WI (356) Tandem: MILWWI4561T Detailed Switch Info | |
| 920-907-2 | WI | WISCONSIN BELL INC (AT&T) | N/A | 9327 | FONDDU LAC | FDULWI01DS0 | N/A | Prefix Type: RBOC Switch Name: FOND DU LAC Switch Type: DMS100 LATA: southeastern WI (356) Tandem: MILWWI4561T Detailed Switch Info | |
| 920-907-3 | WI | WISCONSIN BELL INC (AT&T) | N/A | 9327 | FONDDU LAC | FDULWI01DS0 | N/A | Prefix Type: RBOC Switch Name: FOND DU LAC Switch Type: DMS100 LATA: southeastern WI (356) Tandem: MILWWI4561T Detailed Switch Info | |
| 920-907-4 | WI | WISCONSIN BELL INC (AT&T) | N/A | 9327 | FONDDU LAC | FDULWI01DS0 | N/A | Prefix Type: RBOC Switch Name: FOND DU LAC Switch Type: DMS100 LATA: southeastern WI (356) Tandem: MILWWI4561T Detailed Switch Info | |
| 920-907-5 | WI | WISCONSIN BELL INC (AT&T) | N/A | 9327 | FONDDU LAC | FDULWI01DS0 | N/A | Prefix Type: RBOC Switch Name: FOND DU LAC Switch Type: DMS100 LATA: southeastern WI (356) Tandem: MILWWI4561T Detailed Switch Info | |
| 920-907-6 | WI | WISCONSIN BELL INC (AT&T) | N/A | 9327 | FONDDU LAC | FDULWI01DS0 | N/A | Prefix Type: RBOC Switch Name: FOND DU LAC Switch Type: DMS100 LATA: southeastern WI (356) Tandem: MILWWI4561T Detailed Switch Info | |
| 920-907-7 | WI | WISCONSIN BELL INC (AT&T) | N/A | 9327 | FONDDU LAC | FDULWI01DS0 | N/A | Prefix Type: RBOC Switch Name: FOND DU LAC Switch Type: DMS100 LATA: southeastern WI (356) Tandem: MILWWI4561T Detailed Switch Info | |
| 920-907-8 | WI | WISCONSIN BELL INC (AT&T) | N/A | 9327 | FONDDU LAC | FDULWI01DS0 | N/A | Prefix Type: RBOC Switch Name: FOND DU LAC Switch Type: DMS100 LATA: southeastern WI (356) Tandem: MILWWI4561T Detailed Switch Info | |
| 920-921 | WI | WISCONSIN BELL INC (AT&T) | N/A | 9327 | FONDDU LAC | FDULWI01DS0 | 00/00/0000 | Prefix Type: RBOC Switch Name: FOND DU LAC Switch Type: DMS100 LATA: southeastern WI (356) Tandem: MILWWI4561T Detailed Switch Info | |
| 920-922 | WI | WISCONSIN BELL INC (AT&T) | N/A | 9327 | FONDDU LAC | FDULWI01DS0 | 00/00/0000 | Prefix Type: RBOC Switch Name: FOND DU LAC Switch Type: DMS100 LATA: southeastern WI (356) Tandem: MILWWI4561T Detailed Switch Info | |
| 920-923 | WI | WISCONSIN BELL INC (AT&T) | N/A | 9327 | FONDDU LAC | FDULWI01DS0 | 00/00/0000 | Prefix Type: RBOC Switch Name: FOND DU LAC Switch Type: DMS100 LATA: southeastern WI (356) Tandem: MILWWI4561T Detailed Switch Info | |
| 920-924 | WI | WISCONSIN BELL INC (AT&T) | N/A | 9327 | FONDDU LAC | FDULWI01DS0 | 00/00/0000 | Prefix Type: RBOC Switch Name: FOND DU LAC Switch Type: DMS100 LATA: southeastern WI (356) Tandem: MILWWI4561T Detailed Switch Info | |
| 920-926 | WI | WISCONSIN BELL INC (AT&T) | N/A | 9327 | FONDDU LAC | FDULWI01DS0 | 00/00/0000 | Prefix Type: RBOC Switch Name: FOND DU LAC Switch Type: DMS100 LATA: southeastern WI (356) Tandem: MILWWI4561T Detailed Switch Info | |
| Thousands block for 920-926 | |||||||||
| 920-926-0 | WI | WISCONSIN BELL INC (AT&T) | N/A | 9327 | FONDDU LAC | FDULWI01DS0 | N/A | Prefix Type: RBOC Switch Name: FOND DU LAC Switch Type: DMS100 LATA: southeastern WI (356) Tandem: MILWWI4561T Detailed Switch Info | |
| 920-926-1 | WI | WISCONSIN BELL INC (AT&T) | N/A | 9327 | FONDDU LAC | FDULWI01DS0 | N/A | Prefix Type: RBOC Switch Name: FOND DU LAC Switch Type: DMS100 LATA: southeastern WI (356) Tandem: MILWWI4561T Detailed Switch Info | |
| 920-926-2 | WI | WISCONSIN BELL INC (AT&T) | N/A | 9327 | FONDDU LAC | FDULWI01DS0 | N/A | Prefix Type: RBOC Switch Name: FOND DU LAC Switch Type: DMS100 LATA: southeastern WI (356) Tandem: MILWWI4561T Detailed Switch Info | |
| 920-926-4 | WI | WISCONSIN BELL INC (AT&T) | N/A | 9327 | FONDDU LAC | FDULWI01DS0 | N/A | Prefix Type: RBOC Switch Name: FOND DU LAC Switch Type: DMS100 LATA: southeastern WI (356) Tandem: MILWWI4561T Detailed Switch Info | |
| 920-926-5 | WI | WISCONSIN BELL INC (AT&T) | N/A | 9327 | FONDDU LAC | FDULWI01DS0 | N/A | Prefix Type: RBOC Switch Name: FOND DU LAC Switch Type: DMS100 LATA: southeastern WI (356) Tandem: MILWWI4561T Detailed Switch Info | |
| 920-926-6 | WI | WISCONSIN BELL INC (AT&T) | N/A | 9327 | FONDDU LAC | FDULWI01DS0 | N/A | Prefix Type: RBOC Switch Name: FOND DU LAC Switch Type: DMS100 LATA: southeastern WI (356) Tandem: MILWWI4561T Detailed Switch Info | |
| 920-926-7 | WI | WISCONSIN BELL INC (AT&T) | N/A | 9327 | FONDDU LAC | FDULWI01DS0 | N/A | Prefix Type: RBOC Switch Name: FOND DU LAC Switch Type: DMS100 LATA: southeastern WI (356) Tandem: MILWWI4561T Detailed Switch Info | |
| 920-926-8 | WI | WISCONSIN BELL INC (AT&T) | N/A | 9327 | FONDDU LAC | FDULWI01DS0 | N/A | Prefix Type: RBOC Switch Name: FOND DU LAC Switch Type: DMS100 LATA: southeastern WI (356) Tandem: MILWWI4561T Detailed Switch Info | |
| 920-926-9 | WI | WISCONSIN BELL INC (AT&T) | N/A | 9327 | FONDDU LAC | FDULWI01DS0 | N/A | Prefix Type: RBOC Switch Name: FOND DU LAC Switch Type: DMS100 LATA: southeastern WI (356) Tandem: MILWWI4561T Detailed Switch Info | |
| 920-929 | WI | WISCONSIN BELL INC (AT&T) | N/A | 9327 | FONDDU LAC | FDULWI01DS0 | 00/00/0000 | Prefix Type: RBOC Switch Name: FOND DU LAC Switch Type: DMS100 LATA: southeastern WI (356) Tandem: MILWWI4561T Detailed Switch Info |
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Last Updated: Sat Mar 14 04:07:31 2026