🔎 Tip: Click any Company, OCN, Rate Center, or CLLI to explore related telecom data
| npa-nxx | State/Province | Company | FRN | RMD | OCN | Rate Center | CLLI | Assign Date | Misc |
| 603-253 | NH | CONSOLIDATED COMM OF NO. NEW ENGLAND-NH (Fairpoint) | N/A | 5113 | CENTER HBR | CNHRNHPLRS1 | 00/00/0000 | Prefix Type: RBOC Switch Name: CENTER HARBOR Switch Type: WECO 5ESS Remote (5A RSM) LATA: New Hampshire (122) Tandem: N/A 🔧 Explore Switch(CLLI: CNHRNHPLRS1)) | |
| 603-253 is split into 1,000-number blocks - detail below | |||||||||
| 603-253-0XXX | NH | TERRA NOVA TELECOM INC. | 0021193057 | RMD0001495 | 145J | CENTER HBR | MNCHNHCOXAZ | 02/18/2026 | Prefix Type: IPES Switch Name: MANCHESTER Switch Type: N/A LATA: New Hampshire (122) Tandem: N/A 🔧 Explore Switch(CLLI: MNCHNHCOXAZ)) |
| 603-253-1XXX | NH | TWC IP ENABLED SERVICES, LLC | N/A | 793K | CENTER HBR | NOCLLIKNOWN | 10/04/2006 | Prefix Type: IPES Switch Name: N/A Switch Type: N/A LATA: New Hampshire (122) Tandem: N/A 🔧 Explore Switch(CLLI: NOCLLIKNOWN)) | |
| 603-253-2XXX | NH | LEVEL 3 COMMUNICATIONS, LLC - NH (Lumen Technologies, Inc) | 0015338122 | RMD0006112 | 4017 | CENTER HBR | NOCLLIKNOWN | 08/09/2004 | Prefix Type: CLEC Switch Name: N/A Switch Type: N/A LATA: New Hampshire (122) Tandem: N/A 🔧 Explore Switch(CLLI: NOCLLIKNOWN)) |
| 603-253-3XXX | NH | CONSOLIDATED COMM OF NO. NEW ENGLAND-NH (Fairpoint) | N/A | 5113 | CENTER HBR | CNHRNHPLRS1 | N/A | Prefix Type: RBOC Switch Name: CENTER HARBOR Switch Type: WECO 5ESS Remote (5A RSM) LATA: New Hampshire (122) Tandem: N/A 🔧 Explore Switch(CLLI: CNHRNHPLRS1)) | |
| 603-253-4XXX | NH | CONSOLIDATED COMM OF NO. NEW ENGLAND-NH (Fairpoint) | N/A | 5113 | CENTER HBR | CNHRNHPLRS1 | N/A | Prefix Type: RBOC Switch Name: CENTER HARBOR Switch Type: WECO 5ESS Remote (5A RSM) LATA: New Hampshire (122) Tandem: N/A 🔧 Explore Switch(CLLI: CNHRNHPLRS1)) | |
| 603-253-5XXX | NH | TWC IP ENABLED SERVICES, LLC | N/A | 793K | CENTER HBR | NOCLLIKNOWN | 07/30/2012 | Prefix Type: IPES Switch Name: N/A Switch Type: N/A LATA: New Hampshire (122) Tandem: N/A 🔧 Explore Switch(CLLI: NOCLLIKNOWN)) | |
| 603-253-6XXX | NH | CONSOLIDATED COMM OF NO. NEW ENGLAND-NH (Fairpoint) | N/A | 5113 | CENTER HBR | CNHRNHPLRS1 | N/A | Prefix Type: RBOC Switch Name: CENTER HARBOR Switch Type: WECO 5ESS Remote (5A RSM) LATA: New Hampshire (122) Tandem: N/A 🔧 Explore Switch(CLLI: CNHRNHPLRS1)) | |
| 603-253-7XXX | NH | CONSOLIDATED COMM OF NO. NEW ENGLAND-NH (Fairpoint) | N/A | 5113 | CENTER HBR | CNHRNHPLRS1 | N/A | Prefix Type: RBOC Switch Name: CENTER HARBOR Switch Type: WECO 5ESS Remote (5A RSM) LATA: New Hampshire (122) Tandem: N/A 🔧 Explore Switch(CLLI: CNHRNHPLRS1)) | |
| 603-253-8XXX | NH | CONSOLIDATED COMM OF NO. NEW ENGLAND-NH (Fairpoint) | N/A | 5113 | CENTER HBR | CNHRNHPLRS1 | N/A | Prefix Type: RBOC Switch Name: CENTER HARBOR Switch Type: WECO 5ESS Remote (5A RSM) LATA: New Hampshire (122) Tandem: N/A 🔧 Explore Switch(CLLI: CNHRNHPLRS1)) | |
| 603-253-9XXX | NH | CONSOLIDATED COMM OF NO. NEW ENGLAND-NH (Fairpoint) | N/A | 5113 | CENTER HBR | CNHRNHPLRS1 | N/A | Prefix Type: RBOC Switch Name: CENTER HARBOR Switch Type: WECO 5ESS Remote (5A RSM) LATA: New Hampshire (122) Tandem: N/A 🔧 Explore Switch(CLLI: CNHRNHPLRS1)) |