TelcoData.US: Search by Area Code / Exchange

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npa-nxx	State/Province	Company	FRN	RMD	OCN	Rate Center	CLLI	Assign Date	Misc
508-857	MA	COMCAST IP PHONE, LLC (Comcast)	0008497687	RMD0003552	318J	BROCKTON	NWTNMAWAVMD	00/00/0000	Prefix Type: IPES Switch Name: N/A Switch Type: N/A LATA: eastern MA (128) Tandem: N/A 🔧 Explore Switch(CLLI: NWTNMAWAVMD))
508-857 is split into 1,000-number blocks - detail below
508-857-0XXX	MA	COMCAST IP PHONE, LLC (Comcast)	0008497687	RMD0003552	318J	BROCKTON	NWTNMAWAVMD	01/13/2006	Prefix Type: IPES Switch Name: N/A Switch Type: N/A LATA: eastern MA (128) Tandem: N/A 🔧 Explore Switch(CLLI: NWTNMAWAVMD))
508-857-1XXX	MA	COMCAST IP PHONE, LLC (Comcast)	0008497687	RMD0003552	318J	BROCKTON	NWTNMAWAVMD	N/A	Prefix Type: IPES Switch Name: N/A Switch Type: N/A LATA: eastern MA (128) Tandem: N/A 🔧 Explore Switch(CLLI: NWTNMAWAVMD))
508-857-2XXX	MA	COMCAST IP PHONE, LLC (Comcast)	0008497687	RMD0003552	318J	BROCKTON	NWTNMAWAVMD	N/A	Prefix Type: IPES Switch Name: N/A Switch Type: N/A LATA: eastern MA (128) Tandem: N/A 🔧 Explore Switch(CLLI: NWTNMAWAVMD))
508-857-3XXX	MA	COMCAST IP PHONE, LLC (Comcast)	0008497687	RMD0003552	318J	BROCKTON	NWTNMAWAVMD	N/A	Prefix Type: IPES Switch Name: N/A Switch Type: N/A LATA: eastern MA (128) Tandem: N/A 🔧 Explore Switch(CLLI: NWTNMAWAVMD))
508-857-4XXX	MA	COMCAST IP PHONE, LLC (Comcast)	0008497687	RMD0003552	318J	BROCKTON	NWTNMAWAVMD	01/13/2006	Prefix Type: IPES Switch Name: N/A Switch Type: N/A LATA: eastern MA (128) Tandem: N/A 🔧 Explore Switch(CLLI: NWTNMAWAVMD))
508-857-5XXX	MA	COMCAST IP PHONE, LLC (Comcast)	0008497687	RMD0003552	318J	BROCKTON	NWTNMAWAVMD	N/A	Prefix Type: IPES Switch Name: N/A Switch Type: N/A LATA: eastern MA (128) Tandem: N/A 🔧 Explore Switch(CLLI: NWTNMAWAVMD))
508-857-6XXX	MA	NEW CINGULAR WIRELESS PCS, LLC - DC (AT&T Wireless)	0003291192	RMD0036909	4036	BROCKTON	CMBSMA01AMD	10/16/2008	Prefix Type: WIRELESS Switch Name: N/A Switch Type: N/A LATA: eastern MA (128) Tandem: N/A 🔧 Explore Switch(CLLI: CMBSMA01AMD))
508-857-7XXX	MA	METROPCS, INC. (T-Mobile US, Inc)		N/A	5562	BROCKTON	FRMNMAWA0MD	10/01/2007	Prefix Type: PCS Switch Name: FRAMINGHAM Switch Type: N/A LATA: eastern MA (128) Tandem: N/A 🔧 Explore Switch(CLLI: FRMNMAWA0MD))
508-857-8XXX	MA	METROPCS, INC. (T-Mobile US, Inc)		N/A	5562	BROCKTON	FRMNMAWA0MD	10/01/2007	Prefix Type: PCS Switch Name: FRAMINGHAM Switch Type: N/A LATA: eastern MA (128) Tandem: N/A 🔧 Explore Switch(CLLI: FRMNMAWA0MD))
508-857-9XXX	MA	METROPCS, INC. (T-Mobile US, Inc)		N/A	5562	BROCKTON	FRMNMAWA0MD	10/01/2007	Prefix Type: PCS Switch Name: FRAMINGHAM Switch Type: N/A LATA: eastern MA (128) Tandem: N/A 🔧 Explore Switch(CLLI: FRMNMAWA0MD))