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| npa-nxx | State/Province | Company | FRN | RMD | OCN | Rate Center | CLLI | Assign Date | Misc |
| 219-378 | IN | INDIANA BELL TEL CO INC (AT&T) | N/A | 9325 | E CHICAGO | ECHCINECDS0 | 00/00/0000 | Prefix Type: RBOC Switch Name: EAST CHICAGO Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: GARYINGO10T Detailed Switch Info | |
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| 219-378-0 | IN | T-MOBILE USA, INC. (T-Mobile US, Inc) | 0006945950 | RMD0004209 | 6529 | E CHICAGO | NOCLLIKNOWN | 11/25/2008 | Prefix Type: PCS Switch Name: N/A Switch Type: N/A LATA: Chicago IL METRO (358) Tandem: N/A Detailed Switch Info |
| 219-378-1 | IN | INDIANA BELL TEL CO INC (AT&T) | N/A | 9325 | E CHICAGO | ECHCINECDS0 | N/A | Prefix Type: RBOC Switch Name: EAST CHICAGO Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: GARYINGO10T Detailed Switch Info | |
| 219-378-2 | IN | INDIANA BELL TEL CO INC (AT&T) | N/A | 9325 | E CHICAGO | ECHCINECDS0 | N/A | Prefix Type: RBOC Switch Name: EAST CHICAGO Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: GARYINGO10T Detailed Switch Info | |
| 219-378-3 | IN | INDIANA BELL TEL CO INC (AT&T) | N/A | 9325 | E CHICAGO | ECHCINECDS0 | N/A | Prefix Type: RBOC Switch Name: EAST CHICAGO Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: GARYINGO10T Detailed Switch Info | |
| 219-378-4 | IN | TERRA NOVA TELECOM INC. | 0021193057 | RMD0001495 | 145J | E CHICAGO | NOCLLIKNOWN | 07/10/2023 | Prefix Type: IPES Switch Name: N/A Switch Type: N/A LATA: Chicago IL METRO (358) Tandem: N/A Detailed Switch Info |
| 219-378-5 | IN | FIRST COMMUNICATIONS, LLC | 0003764487 | RMD0014015 | 460K | E CHICAGO | NOCLLIKNOWN | 04/25/2006 | Prefix Type: UNKNOWN Switch Name: N/A Switch Type: N/A LATA: Chicago IL METRO (358) Tandem: N/A Detailed Switch Info |
| 219-378-6 | IN | T-MOBILE USA, INC. (T-Mobile US, Inc) | 0006945950 | RMD0004209 | 6529 | E CHICAGO | NOCLLIKNOWN | 08/10/2006 | Prefix Type: PCS Switch Name: N/A Switch Type: N/A LATA: Chicago IL METRO (358) Tandem: N/A Detailed Switch Info |
| 219-378-7 | IN | INDIANA BELL TEL CO INC (AT&T) | N/A | 9325 | E CHICAGO | ECHCINECDS0 | N/A | Prefix Type: RBOC Switch Name: EAST CHICAGO Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: GARYINGO10T Detailed Switch Info | |
| 219-378-8 | IN | T-MOBILE USA, INC. (T-Mobile US, Inc) | 0006945950 | RMD0004209 | 6529 | E CHICAGO | NOCLLIKNOWN | 08/10/2006 | Prefix Type: PCS Switch Name: N/A Switch Type: N/A LATA: Chicago IL METRO (358) Tandem: N/A Detailed Switch Info |
| 219-378-9 | IN | INDIANA BELL TEL CO INC (AT&T) | N/A | 9325 | E CHICAGO | ECHCINECDS0 | N/A | Prefix Type: RBOC Switch Name: EAST CHICAGO Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: GARYINGO10T Detailed Switch Info |