BCBS Alpha Numeric Prefix List (I2A to I9Z)

Today you will find The BCBS Alpha Numeric Prefix List from I2A to I9Z. 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	I2A	Blue Shield of California
2	I2B	Anthem Blue Cross Blue Shield of Ohio
3	I2C	Anthem Blue Cross Blue Shield of Colorado
4	I2D	Unassigned Prefix
5	I2E	Unassigned Prefix
6	I2F	Anthem Blue Cross of California
7	I2G	Unassigned Prefix
8	I2H	Unassigned Prefix
9	I2I	Anthem Blue Cross of California
10	I2J	Unassigned Prefix
11	I2K	Unassigned Prefix
12	I2L	Unassigned Prefix
13	I2M	Wellmark
14	I2N	Wellmark
15	I2O	Unassigned Prefix
16	I2P	Regence Blue Cross Blue Shield
17	I2Q	Unassigned Prefix
18	I2R	Unassigned Prefix
19	I2S	Unassigned Prefix
20	I2T	Regence Blue Cross Blue Shield
21	I2U	Unassigned Prefix
22	I2V	Anthem Blue Cross of California
23	I2W	Regence Blue Cross Blue Shield
24	I2X	Unassigned Prefix
25	I2Y	Unassigned Prefix
26	I2Z	Unassigned Prefix
27	I3A	Unassigned Prefix
28	I3B	Unassigned Prefix
29	I3C	Unassigned Prefix
30	I3D	Unassigned Prefix
31	I3E	Unassigned Prefix
32	I3F	Regence Blue Cross Blue Shield
33	I3G	Unassigned Prefix
34	I3H	Blue Cross Blue Shield of Alabama
35	I3I	Unassigned Prefix
36	I3J	Unassigned Prefix
37	I3K	Unassigned Prefix
38	I3L	Capital Blue Cross
39	I3M	Unassigned Prefix
40	I3N	Unassigned Prefix
41	I3O	Unassigned Prefix
42	I3P	Unassigned Prefix
43	I3Q	Unassigned Prefix
44	I3R	Unassigned Prefix
45	I3S	Unassigned Prefix
46	I3T	Anthem Blue Cross Blue Shield of Virginia
47	I3U	Unassigned Prefix
48	I3V	Unassigned Prefix
49	I3W	Regence Blue Cross Blue Shield
50	I3X	Unassigned Prefix
51	I3Y	Unassigned Prefix
52	I3Z	Unassigned Prefix
53	I4A	Anthem Blue Cross Blue Shield of Virginia
54	I4B	Unassigned Prefix
55	I4C	Unassigned Prefix
56	I4D	Unassigned Prefix
57	I4E	Unassigned Prefix
58	I4F	Unassigned Prefix
59	I4G	Unassigned Prefix
60	I4H	Unassigned Prefix
61	I4I	Unassigned Prefix
62	I4J	Unassigned Prefix
63	I4K	Unassigned Prefix
64	I4L	Unassigned Prefix
65	I4M	Unassigned Prefix
66	I4N	Unassigned Prefix
67	I4O	Unassigned Prefix
68	I4P	Unassigned Prefix
69	I4Q	Unassigned Prefix
70	I4R	Unassigned Prefix
71	I4S	Unassigned Prefix
72	I4T	Unassigned Prefix
73	I4U	Unassigned Prefix
74	I4V	Unassigned Prefix
75	I4W	Unassigned Prefix
76	I4X	Unassigned Prefix
77	I4Y	Unassigned Prefix
78	I4Z	Unassigned Prefix
79	I5A	Unassigned Prefix
80	I5B	Unassigned Prefix
81	I5C	Unassigned Prefix
82	I5D	Unassigned Prefix
83	I5E	Unassigned Prefix
84	I5F	Unassigned Prefix
85	I5G	Unassigned Prefix
86	I5H	Unassigned Prefix
87	I5I	Unassigned Prefix
88	I5J	Independence Blue Cross
89	I5K	Unassigned Prefix
90	I5L	Unassigned Prefix
91	I5M	Unassigned Prefix
92	I5N	Unassigned Prefix
93	I5O	Unassigned Prefix
94	I5P	Unassigned Prefix
95	I5Q	Unassigned Prefix
96	I5R	Unassigned Prefix
97	I5S	Unassigned Prefix
98	I5T	Unassigned Prefix
99	I5U	Unassigned Prefix
100	I5V	Unassigned Prefix
101	I5W	Unassigned Prefix
102	I5X	Unassigned Prefix
103	I5Y	Unassigned Prefix
104	I5Z	Unassigned Prefix
105	I6A	Unassigned Prefix
106	I6B	Unassigned Prefix
107	I6C	Unassigned Prefix
108	I6D	Unassigned Prefix
109	I6E	Unassigned Prefix
110	I6F	Unassigned Prefix
111	I6G	Unassigned Prefix
112	I6H	Unassigned Prefix
113	I6I	Unassigned Prefix
114	I6J	Unassigned Prefix
115	I6K	Unassigned Prefix
116	I6L	Unassigned Prefix
117	I6M	Unassigned Prefix
118	I6N	Unassigned Prefix
119	I6O	Unassigned Prefix
120	I6P	Unassigned Prefix
121	I6Q	Unassigned Prefix
122	I6R	Unassigned Prefix
123	I6S	Highmark Blue Cross Blue Shield
124	I6T	Unassigned Prefix
125	I6U	Unassigned Prefix
126	I6V	Unassigned Prefix
127	I6W	Unassigned Prefix
128	I6X	Unassigned Prefix
129	I6Y	Unassigned Prefix
130	I6Z	Unassigned Prefix
131	I7A	Unassigned Prefix
132	I7B	Unassigned Prefix
133	I7C	Unassigned Prefix
134	I7D	Unassigned Prefix
135	I7E	Unassigned Prefix
136	I7F	Unassigned Prefix
137	I7G	Unassigned Prefix
138	I7H	Unassigned Prefix
139	I7I	Unassigned Prefix
140	I7J	Unassigned Prefix
141	I7K	Unassigned Prefix
142	I7L	Unassigned Prefix
143	I7M	Unassigned Prefix
144	I7N	Unassigned Prefix
145	I7O	Unassigned Prefix
146	I7P	Unassigned Prefix
147	I7Q	Unassigned Prefix
148	I7R	Unassigned Prefix
149	I7S	Unassigned Prefix
150	I7T	Unassigned Prefix
151	I7U	Unassigned Prefix
152	I7V	Unassigned Prefix
153	I7W	Unassigned Prefix
154	I7X	Unassigned Prefix
155	I7Y	Unassigned Prefix
156	I7Z	Unassigned Prefix
157	I8A	Unassigned Prefix
158	I8B	Unassigned Prefix
159	I8C	Unassigned Prefix
160	I8D	Unassigned Prefix
161	I8E	Unassigned Prefix
162	I8F	Unassigned Prefix
163	I8G	Unassigned Prefix
164	I8H	Unassigned Prefix
165	I8I	Unassigned Prefix
166	I8J	Unassigned Prefix
167	I8K	Unassigned Prefix
168	I8L	Unassigned Prefix
169	I8M	Unassigned Prefix
170	I8N	Unassigned Prefix
171	I8O	Unassigned Prefix
172	I8P	Unassigned Prefix
173	I8Q	Unassigned Prefix
174	I8R	Unassigned Prefix
175	I8S	Unassigned Prefix
176	I8T	Unassigned Prefix
177	I8U	Unassigned Prefix
178	I8V	Unassigned Prefix
179	I8W	Unassigned Prefix
180	I8X	Unassigned Prefix
181	I8Y	Unassigned Prefix
182	I8Z	Unassigned Prefix
183	I9A	Unassigned Prefix
184	I9B	Unassigned Prefix
185	I9C	Unassigned Prefix
186	I9D	Unassigned Prefix
187	I9E	Unassigned Prefix
188	I9F	Unassigned Prefix
189	I9G	Unassigned Prefix
190	I9H	Unassigned Prefix
191	I9I	Unassigned Prefix
192	I9J	Unassigned Prefix
193	I9K	Unassigned Prefix
194	I9L	Unassigned Prefix
195	I9M	Unassigned Prefix
196	I9N	Unassigned Prefix
197	I9O	Unassigned Prefix
198	I9P	Unassigned Prefix
199	I9Q	Unassigned Prefix
200	I9R	Unassigned Prefix
201	I9S	Unassigned Prefix
202	I9T	Unassigned Prefix
203	I9U	Unassigned Prefix
204	I9V	Unassigned Prefix
205	I9W	Unassigned Prefix
206	I9X	Unassigned Prefix
207	I9Y	Unassigned Prefix
208	I9Z	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:

1. Do not omit or randomly select an alpha prefix.
2. Do not substitute another Blue Cross Blue Shield Member’s prefix.
3. 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.
4. The alpha prefix is always three letters followed by the member’s ID number which can be from 6 up to 14 characters total.
5. If possible, make copies of the member’s ID card (front and back) for your records.
6. 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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