🔎 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 |
| 410-557 | MD | VERIZON MARYLAND, INC. (Verizon Communications) | 0002166825 | RMD0002941 | 9212 | FORK | JRVLMDJERS0 | 00/00/0000 | Prefix Type: RBOC Switch Name: JARRETTSVILLE Switch Type: AT&T Tech Optic Remote Switch LATA: Baltimore MD (238) Tandem: N/A 🔧 Explore Switch(CLLI: JRVLMDJERS0)) |
| 410-557 is split into 1,000-number blocks - detail below | |||||||||
| 410-557-0XXX | MD | VERIZON MARYLAND, INC. (Verizon Communications) | 0002166825 | RMD0002941 | 9212 | FORK | JRVLMDJERS0 | N/A | Prefix Type: RBOC Switch Name: JARRETTSVILLE Switch Type: AT&T Tech Optic Remote Switch LATA: Baltimore MD (238) Tandem: N/A 🔧 Explore Switch(CLLI: JRVLMDJERS0)) |
| 410-557-1XXX | MD | PAETEC ITEL, LLC | N/A | 829J | FORK | HNVAMDBHAMD | 03/09/2005 | Prefix Type: IPES Switch Name: N/A Switch Type: N/A LATA: Baltimore MD (238) Tandem: N/A 🔧 Explore Switch(CLLI: HNVAMDBHAMD)) | |
| 410-557-2XXX | MD | CORE COMMUNICATIONS, INC.- MD | N/A | 2593 | FORK | NOCLLIKNOWN | 04/12/2019 | Prefix Type: CLEC Switch Name: N/A Switch Type: N/A LATA: Baltimore MD (238) Tandem: N/A 🔧 Explore Switch(CLLI: NOCLLIKNOWN)) | |
| 410-557-3XXX | MD | CORE COMMUNICATIONS, INC.- MD | N/A | 2593 | FORK | NOCLLIKNOWN | 04/12/2019 | Prefix Type: CLEC Switch Name: N/A Switch Type: N/A LATA: Baltimore MD (238) Tandem: N/A 🔧 Explore Switch(CLLI: NOCLLIKNOWN)) | |
| 410-557-4XXX | MD | VERIZON MARYLAND, INC. (Verizon Communications) | 0002166825 | RMD0002941 | 9212 | FORK | JRVLMDJERS0 | N/A | Prefix Type: RBOC Switch Name: JARRETTSVILLE Switch Type: AT&T Tech Optic Remote Switch LATA: Baltimore MD (238) Tandem: N/A 🔧 Explore Switch(CLLI: JRVLMDJERS0)) |
| 410-557-5XXX | MD | BALTIMORE-WASHINGTON TELEPHONE (BWT) | 0008104507 | RMD0004516 | 8697 | FORK | NOCLLIKNOWN | 04/17/2006 | Prefix Type: CLEC Switch Name: N/A Switch Type: N/A LATA: Baltimore MD (238) Tandem: N/A 🔧 Explore Switch(CLLI: NOCLLIKNOWN)) |
| 410-557-6XXX | MD | VERIZON MARYLAND, INC. (Verizon Communications) | 0002166825 | RMD0002941 | 9212 | FORK | JRVLMDJERS0 | N/A | Prefix Type: RBOC Switch Name: JARRETTSVILLE Switch Type: AT&T Tech Optic Remote Switch LATA: Baltimore MD (238) Tandem: N/A 🔧 Explore Switch(CLLI: JRVLMDJERS0)) |
| 410-557-7XXX | MD | VERIZON MARYLAND, INC. (Verizon Communications) | 0002166825 | RMD0002941 | 9212 | FORK | JRVLMDJERS0 | N/A | Prefix Type: RBOC Switch Name: JARRETTSVILLE Switch Type: AT&T Tech Optic Remote Switch LATA: Baltimore MD (238) Tandem: N/A 🔧 Explore Switch(CLLI: JRVLMDJERS0)) |
| 410-557-8XXX | MD | VERIZON MARYLAND, INC. (Verizon Communications) | 0002166825 | RMD0002941 | 9212 | FORK | JRVLMDJERS0 | N/A | Prefix Type: RBOC Switch Name: JARRETTSVILLE Switch Type: AT&T Tech Optic Remote Switch LATA: Baltimore MD (238) Tandem: N/A 🔧 Explore Switch(CLLI: JRVLMDJERS0)) |
| 410-557-9XXX | MD | VERIZON MARYLAND, INC. (Verizon Communications) | 0002166825 | RMD0002941 | 9212 | FORK | JRVLMDJERS0 | N/A | Prefix Type: RBOC Switch Name: JARRETTSVILLE Switch Type: AT&T Tech Optic Remote Switch LATA: Baltimore MD (238) Tandem: N/A 🔧 Explore Switch(CLLI: JRVLMDJERS0)) |