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959

Area code 959

Connecticut, United States

National (959) 555-0123, E.164 +19595550123

How the 177 central office codes (exchanges) of area code 959 were allocated, from the North American Numbering Plan's records: to which carrier, as which line type. A 959 number is mobile, fixed line or VoIP according to its exchange, the three digits after the area code; the allocation is the original one (below).

At a glance

Country code
+1
State
CT
Exchanges on record
177
Carriers on record
28
Exchanges of 959 by the line type they were allocated as
  • Mobile 43 (24%)
  • Fixed line 19 (11%)
  • VoIP 101 (57%)
  • No line type on record 14 (8%)
  • 177 exchanges on record

Most exchanges: Onvoy 46, Ton80 Communications 27, T-Mobile 15.

Check a number

Valid fixed line or mobile number in the United States.

+1
country code
959
area code
5550123
subscriber number
CountryUnited States numbering plan
Line typeFixed line or mobile
Carrier the block was allocated toNo carrier on record for this prefix
E.164+19595550123
International+1 959-555-0123
National(959) 555-0123
RFC 3966tel:+1-959-555-0123

Source: North American Numbering Plan Administrator (NANPA); Canadian Numbering Administrator (CNAC); National numbering plan: United States (ITU)

The example is 959-555-0123: 555-0100 to 555-0199 are set aside for fictional use in every area code.

The exchange map

Every exchange of 959, by the line type it was allocated as

One cell per exchange: blocks 959 2xx to 959 9xx; in each block the row is the tens digit, the column the units digit.

959 2xx959 3xx959 4xx959 5xx959 6xx959 7xx959 8xx959 9xx
  • Mobile 43
  • Fixed line 19
  • VoIP 101
  • No line type on record 14
  • Not on record 623

Formats and patterns

E.164+19595550123
International+1 959-555-0123
National(959) 555-0123
RFC 3966 (tel: URI)tel:+1-959-555-0123

Any 959 number, in E.164

^\+1959[2-9]\d{6}$

+1, the area code, a central office code that does not start with 0 or 1, then four digits.

Mobile exchanges (43 on record)

^\+1959(?:2(?:0[248]|1[257]|2[69]|3[1679]|4[167]|5[578]|6[0-3]|7[346-8]|8[256])|310|410|510|610|710|810|9(?:10|29|5[126]|88|96))\d{4}$

Fixed line exchanges (19 on record)

^\+1959(?:2(?:0[19]|1[489]|3[08]|4[028]|7[029]|80|99)|590|678|8(?:76|85))\d{4}$

VoIP exchanges (101 on record)

^\+1959(?:2(?:0[035-7]|1[036]|2[0-578]|3[2-5]|4[3-59]|5[0-469]|6[4-9]|7[15]|8[1348])|3(?:0[01]|3[35]|45|56)|4(?:00|[25]6|44|6[56])|5(?:00|[16]6|[25]9|88|9[59])|6(?:00|[27]5|66)|7(?:[14]6|5[89]|63|77|88|99)|8(?:00|3[27]|6[67]|8[18]|95)|9(?:0[01]|1[26]|22|3[36]|4[69]|55|66|77|9[1457-9]))\d{4}$

The exchange patterns follow the original allocations; a number ported since keeps its digits but not necessarily its carrier or its line type.

Carriers and their exchanges

Every carrier holding exchanges in 959, with the exchanges allocated to it (the three digits after the area code).

CarrierExchangesMobileFixed lineVoIPExchanges held
Onvoy460046203, 220, 224–225, 227–228, 232–233, 235, 243–245, 250–254, 256, 259, 264–265, 267, 271, 275, 281, 284, 300–301, 335, 400, 500, 566, 600, 666, 777, 800, 881, 888, 901, 949, 955, 991, 994, 997–999
Ton80 Communications270027266, 283, 288, 426, 466, 516, 559, 588, 595, 625, 675, 716, 746, 759, 763, 788, 799, 832, 837, 866, 912, 916, 922, 933, 936, 966, 995
T-Mobile151500202, 208, 212, 217, 226, 229, 231, 237, 239, 241, 246, 258, 263, 929, 996
Verizon141400204, 215, 247, 255, 257, 261–262, 273, 276–277, 285–286, 956, 988
AT&T10370201, 230, 240, 242, 260, 274, 282, 299, 678, 876
Emergency Networks9900310, 410, 510, 610, 710, 810, 910, 951–952
Fractel8008234, 345, 356, 465, 529, 758, 946, 977
Bandwidth.com5005207, 216, 249, 269, 456
Barr Tell USA2020590, 885
Dish Wireless2200236, 278
Eon Telecom2020270, 272
IP Horizon2002221, 268
Lumen2011200, 214
Nuso2020238, 248
Paetec Itel2020218–219
Peerless Network2002210, 444
TELNYX2002222, 333
COMMIO LLC1001867
Comcast1001213
Exiant1001205
HD Carrier1001223
Optimum1010209
Skyetel1001599
Terra Nova Telecom1001900
Tpx Communications1010280
Twilio International1001895
Vonage1001206
Wavenation1010279

Questions developers ask

Where is area code 959?
Area code 959 is in Connecticut, in the United States: all 177 of its exchanges on record are there. From abroad it is dialled +1 959, then the seven-digit number.
Is a 959 number mobile or landline?
Either: in the North American Numbering Plan the line type belongs to the exchange (the three digits after the area code), not to the area code. Of the 177 exchanges on record in 959, 43 (24%) were allocated as mobile, 19 (11%) as fixed line, 101 (57%) as VoIP and 14 (8%) have no line type on record. A number can have been ported since, to another carrier and even to another line type.
Which carriers have numbers in area code 959?
28 carriers hold exchanges in 959 on record; the most: Onvoy (46), Ton80 Communications (27) and T-Mobile (15). These are the original allocations: with number portability, a number may be served by another carrier today, which only a live carrier lookup (an HLR or MNP query) can tell.
How do I validate a 959 phone number?
In E.164 a 959 number matches ^\+1959[2-9]\d{6}$: +1, the area code, a central office code that does not start with 0 or 1, then four digits. Written nationally it reads (959) 555-0123. The exchange patterns on this page narrow it to the exchanges allocated as mobile, fixed line or VoIP.