Today you will find The BCBS Alpha Numeric Prefix List from W2A to W9Z. The alpha Numeric prefix is very important to the identification number. The prefix acts as a key element in confirming the members’ eligibility and coverage information. Prefixes are also used to identify and correctly route claims to the appropriate Blue Cross Blue Shield Plan for processing. Most members with coverage through a Blue Cross Blue Shield Plan are assigned a Three Letter alpha prefix as a part of their unique identification number. The alpha prefix can easily be identified as it is the first three characters.

S.No | Prefix | BCBS Company Name |
---|---|---|
1 | W2A | Blue Shield of Northeastern New York |
2 | W2B | Blue Cross Blue Shield of Illinois |
3 | W2C | Anthem Blue Cross Blue Shield of Georgia |
4 | W2D | Highmark Blue Cross Blue Shield of West Virginia |
5 | W2E | Anthem Blue Cross Blue Shield of Colorado |
6 | W2F | Blue Cross Blue Shield of Illinois |
7 | W2G | Regence Blue Cross Blue Shield |
8 | W2H | Anthem Blue Cross of California |
9 | W2I | Anthem Blue Cross Blue Shield of Virginia |
10 | W2J | Highmark Blue Cross Blue Shield of West Virginia |
11 | W2K | Arkansas Blue Cross |
12 | W2L | Blue Cross Blue Shield of Illinois |
13 | W2M | Blue Cross Blue Shield of Illinois |
14 | W2N | Arkansas Blue Cross |
15 | W2O | Unassigned Prefix |
16 | W2P | Regence Blue Cross Blue Shield |
17 | W2Q | Highmark Blue Cross Blue Shield |
18 | W2R | Highmark Blue Cross Blue Shield of West Virginia |
19 | W2S | Regence Blue Cross Blue Shield |
20 | W2T | Regence Blue Cross Blue Shield |
21 | W2U | Highmark Blue Cross Blue Shield of West Virginia |
22 | W2V | Highmark Blue Cross Blue Shield |
23 | W2W | Arkansas Blue Cross |
24 | W2X | Highmark Blue Cross Blue Shield |
25 | W2Y | Highmark Blue Cross Blue Shield |
26 | W2Z | Highmark Blue Cross Blue Shield |
27 | W3A | Highmark Blue Cross Blue Shield |
28 | W3B | Anthem Blue Cross Blue Shield of Wisconsin |
29 | W3C | Regence Blue Cross Blue Shield |
30 | W3D | Anthem Blue Cross Blue Shield of Nevada |
31 | W3E | Anthem Blue Cross Blue Shield of Missouri |
32 | W3F | Anthem Blue Cross of California |
33 | W3G | Blue Cross Blue Shield of Texas |
34 | W3H | Premera Blue Cross |
35 | W3I | Unassigned Prefix |
36 | W3J | Anthem Blue Cross Blue Shield of Georgia |
37 | W3K | Premera Blue Cross |
38 | W3L | Highmark Blue Cross Blue Shield |
39 | W3M | Blue Cross Blue Shield of Illinois |
40 | W3N | Anthem Blue Cross of California |
41 | W3O | Unassigned Prefix |
42 | W3P | Empire Blue Cross Blue Shield |
43 | W3Q | Anthem Blue Cross of California |
44 | W3R | Blue Cross Blue Shield of Texas |
45 | W3S | Anthem Blue Cross Blue Shield of Georgia |
46 | W3T | Arkansas Blue Cross |
47 | W3U | Highmark Blue Cross Blue Shield of West Virginia |
48 | W3V | Anthem Blue Cross Blue Shield of Georgia |
49 | W3W | Empire Blue Cross Blue Shield |
50 | W3X | Empire Blue Cross Blue Shield |
51 | W3Y | Highmark Blue Cross Blue Shield |
52 | W3Z | Anthem Blue Cross Blue Shield of Georgia |
53 | W4A | Blue Cross Blue Shield of Minnesota |
54 | W4B | Blue Cross Blue Shield of Illinois |
55 | W4C | Carefirst Blue Cross Blue Shield |
56 | W4D | Unassigned Prefix |
57 | W4E | Unassigned Prefix |
58 | W4F | Blue Cross Blue Shield of Texas |
59 | W4G | Blue Cross Blue Shield of Texas |
60 | W4H | Blue Cross Blue Shield of Rhode Island |
61 | W4I | Unassigned Prefix |
62 | W4J | Blue Cross Blue Shield of Texas |
63 | W4K | Blue Cross Blue Shield of Texas |
64 | W4L | Anthem Blue Cross Blue Shield of Missouri |
65 | W4M | Blue Cross Blue Shield of Texas |
66 | W4N | Blue Cross Blue Shield of Texas |
67 | W4O | Unassigned Prefix |
68 | W4P | Blue Cross Blue Shield of Texas |
69 | W4Q | Unassigned Prefix |
70 | W4R | Blue Cross Blue Shield of Texas |
71 | W4S | Anthem Blue Cross Blue Shield of Ohio |
72 | W4T | Premera Blue Cross |
73 | W4U | Anthem Blue Cross Blue Shield of Colorado |
74 | W4V | Blue Cross Blue Shield of Texas |
75 | W4W | Blue Cross Blue Shield of Texas |
76 | W4X | Blue Cross Blue Shield of Texas |
77 | W4Y | Blue Cross Blue Shield of Texas |
78 | W4Z | Blue Cross Blue Shield of Texas |
79 | W5A | Blue Cross Blue Shield of Texas |
80 | W5B | Anthem Blue Cross Blue Shield of Georgia |
81 | W5C | Blue Cross of Vermont |
82 | W5D | Unassigned Prefix |
83 | W5E | Unassigned Prefix |
84 | W5F | Anthem Blue Cross Blue Shield of Georgia |
85 | W5G | Anthem Blue Cross Blue Shield of Wisconsin |
86 | W5H | Premera Blue Cross Blue Shield of Alaska |
87 | W5I | Unassigned Prefix |
88 | W5J | Premera Blue Cross Blue Shield of Alaska |
89 | W5K | Blue Cross Blue Shield of Minnesota |
90 | W5L | Unassigned Prefix |
91 | W5M | Blue Cross Blue Shield of Illinois |
92 | W5N | Unassigned Prefix |
93 | W5O | Unassigned Prefix |
94 | W5P | Anthem Blue Cross Blue Shield of Wisconsin |
95 | W5Q | Unassigned Prefix |
96 | W5R | Unassigned Prefix |
97 | W5S | Unassigned Prefix |
98 | W5T | Premera Blue Cross Blue Shield of Alaska |
99 | W5U | Unassigned Prefix |
100 | W5V | Unassigned Prefix |
101 | W5W | Unassigned Prefix |
102 | W5X | Unassigned Prefix |
103 | W5Y | Unassigned Prefix |
104 | W5Z | Unassigned Prefix |
105 | W6A | Blue Cross Blue Shield of Texas |
106 | W6B | Blue Cross Blue Shield of Texas |
107 | W6C | Premera Blue Cross Blue Shield of Alaska |
108 | W6D | Anthem Blue Cross Blue Shield of Wisconsin |
109 | W6E | Unassigned Prefix |
110 | W6F | Anthem Blue Cross Blue Shield of New Hampshire |
111 | W6G | Anthem Blue Cross Blue Shield of Georgia |
112 | W6H | Anthem Blue Cross of California |
113 | W6I | Unassigned Prefix |
114 | W6J | Highmark Blue Cross Blue Shield of Delaware |
115 | W6K | Unassigned Prefix |
116 | W6L | Highmark Blue Cross Blue Shield of Delaware |
117 | W6M | Empire Blue Cross Blue Shield |
118 | W6N | Unassigned Prefix |
119 | W6O | Unassigned Prefix |
120 | W6P | Empire Blue Cross Blue Shield |
121 | W6Q | Unassigned Prefix |
122 | W6R | Empire Blue Cross Blue Shield |
123 | W6S | Carefirst Blue Cross Blue Shield |
124 | W6T | Regence Blue Cross Blue Shield |
125 | W6U | Empire Blue Cross Blue Shield |
126 | W6V | Empire Blue Cross Blue Shield |
127 | W6W | Empire Blue Cross Blue Shield |
128 | W6X | Anthem Blue Cross Blue Shield of Maine |
129 | W6Y | Empire Blue Cross Blue Shield |
130 | W6Z | Unassigned Prefix |
131 | W7A | Anthem Blue Cross Blue Shield of Colorado |
132 | W7B | Anthem Blue Cross Blue Shield of Indiana |
133 | W7C | Premera Blue Cross Blue Shield of Alaska |
134 | W7D | Blue Cross Blue Shield of Illinois |
135 | W7E | Unassigned Prefix |
136 | W7F | Anthem Blue Cross Blue Shield of Georgia |
137 | W7G | Blue Cross Blue Shield of Illinois |
138 | W7H | Blue Cross Blue Shield of Illinois |
139 | W7I | Unassigned Prefix |
140 | W7J | Unassigned Prefix |
141 | W7K | Unassigned Prefix |
142 | W7L | Unassigned Prefix |
143 | W7M | Carefirst Blue Cross Blue Shield |
144 | W7N | Unassigned Prefix |
145 | W7O | Unassigned Prefix |
146 | W7P | Empire Blue Cross Blue Shield |
147 | W7Q | Unassigned Prefix |
148 | W7R | Anthem Blue Cross Blue Shield of Ohio |
149 | W7S | Anthem Blue Cross of California |
150 | W7T | Blue Cross Blue Shield of Illinois |
151 | W7U | Unassigned Prefix |
152 | W7V | Unassigned Prefix |
153 | W7W | Empire Blue Cross Blue Shield |
154 | W7X | Unassigned Prefix |
155 | W7Y | Unassigned Prefix |
156 | W7Z | Unassigned Prefix |
157 | W8A | Anthem Blue Cross Blue Shield of Wisconsin |
158 | W8B | Anthem Blue Cross Blue Shield of Wisconsin |
159 | W8C | Anthem Blue Cross Blue Shield of Ohio |
160 | W8D | Blue Cross Blue Shield of Illinois |
161 | W8E | Unassigned Prefix |
162 | W8F | Unassigned Prefix |
163 | W8G | Unassigned Prefix |
164 | W8H | Blue Cross Blue Shield of Minnesota |
165 | W8I | Unassigned Prefix |
166 | W8J | Unassigned Prefix |
167 | W8K | Unassigned Prefix |
168 | W8L | Unassigned Prefix |
169 | W8M | Unassigned Prefix |
170 | W8N | Unassigned Prefix |
171 | W8O | Unassigned Prefix |
172 | W8P | Anthem Blue Cross Blue Shield of Georgia |
173 | W8Q | Unassigned Prefix |
174 | W8R | Unassigned Prefix |
175 | W8S | Unassigned Prefix |
176 | W8T | Carefirst Blue Cross Blue Shield |
177 | W8U | Blue Cross Blue Shield of Michigan |
178 | W8V | Unassigned Prefix |
179 | W8W | Unassigned Prefix |
180 | W8X | Unassigned Prefix |
181 | W8Y | Unassigned Prefix |
182 | W8Z | Unassigned Prefix |
183 | W9A | Regence Blue Cross Blue Shield |
184 | W9B | Anthem Blue Cross Blue Shield of Indiana |
185 | W9C | Regence Blue Cross Blue Shield |
186 | W9D | Anthem Blue Cross Blue Shield of Wisconsin |
187 | W9E | Unassigned Prefix |
188 | W9F | Anthem Blue Cross Blue Shield of Georgia |
189 | W9G | Anthem Blue Cross Blue Shield of Georgia |
190 | W9H | Anthem Blue Cross Blue Shield of Indiana |
191 | W9I | Unassigned Prefix |
192 | W9J | Unassigned Prefix |
193 | W9K | Unassigned Prefix |
194 | W9L | Unassigned Prefix |
195 | W9M | Blue Cross Blue Shield of Illinois |
196 | W9N | Unassigned Prefix |
197 | W9O | Unassigned Prefix |
198 | W9P | Anthem Blue Cross Blue Shield of Wisconsin |
199 | W9Q | Unassigned Prefix |
200 | W9R | Unassigned Prefix |
201 | W9S | Anthem Blue Cross Blue Shield of Colorado |
202 | W9T | Unassigned Prefix |
203 | W9U | Unassigned Prefix |
204 | W9V | Regence Blue Cross Blue Shield |
205 | W9W | Unassigned Prefix |
206 | W9X | Blue Cross Blue Shield of Michigan |
207 | W9Y | Unassigned Prefix |
208 | W9Z | Unassigned Prefix |
Some identification cards may not include an alpha prefix, which may indicate that the claim filing instructions for these type policies are different. We suggest that you verify claim filing instructions during the time eligibility information is obtained. If not, please follow the instructions on the back of the member’s ID card or contact the plan directly. Member eligibility can be obtained at 1 (800) 676-BLUE (2583). Once connected, you will then simply provide the alpha prefix and the operator will then route you to the member’s plan. Helpful Tips Related to the Alpha Prefix:
- Do not omit or randomly select an alpha prefix.
- Do not substitute another Blue Cross Blue Shield Member’s prefix.
- Include the alpha prefix and all alpha numeric characters preceding the alpha prefix on all correspondence and claims submitted to Blue Cross Blue Shield of Texas.
- The alpha prefix is always three letters followed by the member’s ID number which can be from 6 up to 14 characters total.
- If possible, make copies of the member’s ID card (front and back) for your records.
- We recommend that you obtain a copy of the ID card any time there has been a coverage or policy change. If there are no changes, we suggest that you obtain card copies annually.
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Billing Executive – a Medical Billing and Coding Knowledge Base for Physicians, Office staff, Medical Billers and Coders, including resources pertaining to HCPCS Codes, CPT Codes, ICD-10 billing codes, Modifiers, POS Codes, Revenue Codes, Billing Errors, Denials and Rejections.
Read More:
BCBS Alpha Numeric Prefix List (V2A to V9Z)
BCBS Alpha Numeric Prefix List (B2A To B9Z)
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