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| npa-nxx | State/Province | Company | FRN | RMD | OCN | Rate Center | CLLI | Assign Date | Misc |
| 312-526 | IL | ILLINOIS BELL TEL CO (AT&T) | N/A | 9329 | CHICGOZN01 | CHCGILCLDS3 | 00/00/0000 | Prefix Type: RBOC Switch Name: CHCG CANAL EAST DS3 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILCLDS3)) | |
| 312-526 is split into 1,000-number blocks - detail below | |||||||||
| 312-526-0XXX | IL | ILLINOIS BELL TEL CO (AT&T) | N/A | 9329 | CHICGOZN01 | CHCGILCLDS3 | N/A | Prefix Type: RBOC Switch Name: CHCG CANAL EAST DS3 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILCLDS3)) | |
| 312-526-1XXX | IL | ILLINOIS BELL TEL CO (AT&T) | N/A | 9329 | CHICGOZN01 | CHCGILCLDS3 | N/A | Prefix Type: RBOC Switch Name: CHCG CANAL EAST DS3 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILCLDS3)) | |
| 312-526-2XXX | IL | ILLINOIS BELL TEL CO (AT&T) | N/A | 9329 | CHICGOZN01 | CHCGILCLDS3 | N/A | Prefix Type: RBOC Switch Name: CHCG CANAL EAST DS3 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILCLDS3)) | |
| 312-526-3XXX | IL | COMCAST IP PHONE, LLC (Comcast) | 0008497687 | RMD0003552 | 318J | CHICGOZN01 | CHCGILNEXJX | 05/09/2008 | Prefix Type: IPES Switch Name: N/A Switch Type: N/A LATA: Chicago IL METRO (358) Tandem: N/A 🔧 Explore Switch(CLLI: CHCGILNEXJX)) |
| 312-526-4XXX | IL | ILLINOIS BELL TEL CO (AT&T) | N/A | 9329 | CHICGOZN01 | CHCGILCLDS3 | N/A | Prefix Type: RBOC Switch Name: CHCG CANAL EAST DS3 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILCLDS3)) | |
| 312-526-5XXX | IL | ILLINOIS BELL TEL CO (AT&T) | N/A | 9329 | CHICGOZN01 | CHCGILCLDS3 | N/A | Prefix Type: RBOC Switch Name: CHCG CANAL EAST DS3 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILCLDS3)) | |
| 312-526-6XXX | IL | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 0004999405 | RMD0002957 | 7229 | CHICGOZN01 | DWGVILMCPS0 | 10/15/2010 | Prefix Type: CLEC Switch Name: DOWNERS GROVE Switch Type: N/A LATA: Chicago IL METRO (358) Tandem: N/A 🔧 Explore Switch(CLLI: DWGVILMCPS0)) |
| 312-526-7XXX | IL | ILLINOIS BELL TEL CO (AT&T) | N/A | 9329 | CHICGOZN01 | CHCGILCLDS3 | N/A | Prefix Type: RBOC Switch Name: CHCG CANAL EAST DS3 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILCLDS3)) | |
| 312-526-8XXX | IL | ILLINOIS BELL TEL CO (AT&T) | N/A | 9329 | CHICGOZN01 | CHCGILCLDS3 | N/A | Prefix Type: RBOC Switch Name: CHCG CANAL EAST DS3 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILCLDS3)) | |
| 312-526-9XXX | IL | ONVOY, LLC (Sinch) | 0004323028 | RMD0001966 | 224C | CHICGOZN01 | NOCLLIKNOWN | 10/15/2010 | Prefix Type: CLEC Switch Name: N/A Switch Type: N/A LATA: Chicago IL METRO (358) Tandem: N/A 🔧 Explore Switch(CLLI: NOCLLIKNOWN)) |