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npa-nxx	State/Province	Company	FRN	RMD	OCN	Rate Center	CLLI	Assign Date	Misc
603-421	NH	CONSOLIDATED COMM OF NO. NEW ENGLAND-NH (Fairpoint)		N/A	5113	DERRY	DRRYNHEBDS1	00/00/0000	Prefix Type: RBOC Switch Name: DERRY Switch Type: WECO 5ESS (Digital) LATA: New Hampshire (122) Tandem: N/A 🔧 Explore Switch(CLLI: DRRYNHEBDS1))
603-421 is split into 1,000-number blocks - detail below
603-421-0XXX	NH	CONSOLIDATED COMM OF NO. NEW ENGLAND-NH (Fairpoint)		N/A	5113	DERRY	DRRYNHEBDS1	N/A	Prefix Type: RBOC Switch Name: DERRY Switch Type: WECO 5ESS (Digital) LATA: New Hampshire (122) Tandem: N/A 🔧 Explore Switch(CLLI: DRRYNHEBDS1))
603-421-1XXX	NH	CONSOLIDATED COMM OF NO. NEW ENGLAND-NH (Fairpoint)		N/A	5113	DERRY	DRRYNHEBDS1	N/A	Prefix Type: RBOC Switch Name: DERRY Switch Type: WECO 5ESS (Digital) LATA: New Hampshire (122) Tandem: N/A 🔧 Explore Switch(CLLI: DRRYNHEBDS1))
603-421-2XXX	NH	CONSOLIDATED COMM OF NO. NEW ENGLAND-NH (Fairpoint)		N/A	5113	DERRY	DRRYNHEBDS1	N/A	Prefix Type: RBOC Switch Name: DERRY Switch Type: WECO 5ESS (Digital) LATA: New Hampshire (122) Tandem: N/A 🔧 Explore Switch(CLLI: DRRYNHEBDS1))
603-421-3XXX	NH	CONSOLIDATED COMM OF NO. NEW ENGLAND-NH (Fairpoint)		N/A	5113	DERRY	DRRYNHEBDS1	N/A	Prefix Type: RBOC Switch Name: DERRY Switch Type: WECO 5ESS (Digital) LATA: New Hampshire (122) Tandem: N/A 🔧 Explore Switch(CLLI: DRRYNHEBDS1))
603-421-4XXX	NH	NEW CINGULAR WIRELESS PCS, LLC - DC (AT&T Wireless)	0003291192	RMD0036909	4036	DERRY	DRRYNHBC1MD	N/A	Prefix Type: WIRELESS Switch Name: N/A Switch Type: N/A LATA: New Hampshire (122) Tandem: N/A 🔧 Explore Switch(CLLI: DRRYNHBC1MD))
603-421-5XXX	NH	CONSOLIDATED COMM OF NO. NEW ENGLAND-NH (Fairpoint)		N/A	5113	DERRY	DRRYNHEBDS1	N/A	Prefix Type: RBOC Switch Name: DERRY Switch Type: WECO 5ESS (Digital) LATA: New Hampshire (122) Tandem: N/A 🔧 Explore Switch(CLLI: DRRYNHEBDS1))
603-421-6XXX	NH	LEVEL 3 COMMUNICATIONS, LLC - NH (Lumen Technologies, Inc)	0015338122	RMD0006112	4017	DERRY	NOCLLIKNOWN	09/14/2010	Prefix Type: CLEC Switch Name: N/A Switch Type: N/A LATA: New Hampshire (122) Tandem: N/A 🔧 Explore Switch(CLLI: NOCLLIKNOWN))
603-421-7XXX	NH	OMNIPOINT MIAMI E LICENSE, LLC (T-Mobile US, Inc)		N/A	6889	DERRY	MNCHNHCOCM1	10/24/2011	Prefix Type: PCS Switch Name: MANCHESTER Switch Type: Northern Telecom Remote Switch SONET LATA: New Hampshire (122) Tandem: N/A 🔧 Explore Switch(CLLI: MNCHNHCOCM1))
603-421-8XXX	NH	OMNIPOINT MIAMI E LICENSE, LLC (T-Mobile US, Inc)		N/A	6889	DERRY	MNCHNHCOCM1	10/02/2012	Prefix Type: PCS Switch Name: MANCHESTER Switch Type: Northern Telecom Remote Switch SONET LATA: New Hampshire (122) Tandem: N/A 🔧 Explore Switch(CLLI: MNCHNHCOCM1))
603-421-9XXX	NH	CONSOLIDATED COMM OF NO. NEW ENGLAND-NH (Fairpoint)		N/A	5113	DERRY	DRRYNHEBDS1	N/A	Prefix Type: RBOC Switch Name: DERRY Switch Type: WECO 5ESS (Digital) LATA: New Hampshire (122) Tandem: N/A 🔧 Explore Switch(CLLI: DRRYNHEBDS1))