BCBS Alpha Numeric Prefix List (Z2A to Z9Z)

Today you will find The BCBS Alpha Numeric Prefix List from Z2A to Z9Z. 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	Z2A	Unassigned Prefix
2	Z2B	Anthem Blue Cross Blue Shield of Indiana
3	Z2C	Unassigned Prefix
4	Z2D	Unassigned Prefix
5	Z2E	Unassigned Prefix
6	Z2F	Blue Cross Blue Shield of Minnesota
7	Z2G	Unassigned Prefix
8	Z2H	Wellmark
9	Z2I	Unassigned Prefix
10	Z2J	Unassigned Prefix
11	Z2K	Blue Cross Blue Shield of Alabama
12	Z2L	Highmark Blue Cross Blue Shield
13	Z2M	Blue Cross Blue Shield of Rhode Island
14	Z2N	Unassigned Prefix
15	Z2O	Unassigned Prefix
16	Z2P	Anthem Blue Cross Blue Shield of Georgia
17	Z2Q	Unassigned Prefix
18	Z2R	Unassigned Prefix
19	Z2S	Wellmark
20	Z2T	Regence Blue Cross Blue Shield
21	Z2U	Unassigned Prefix
22	Z2V	Unassigned Prefix
23	Z2W	Unassigned Prefix
24	Z2X	Unassigned Prefix
25	Z2Y	Unassigned Prefix
26	Z2Z	Unassigned Prefix
27	Z3A	Blue Cross Blue Shield of Illinois
28	Z3B	Anthem Blue Cross Blue Shield of Connecticut
29	Z3C	Unassigned Prefix
30	Z3D	Unassigned Prefix
31	Z3E	Unassigned Prefix
32	Z3F	Blue Cross Blue Shield of Illinois
33	Z3G	Blue Cross Blue Shield of Illinois
34	Z3H	Wellmark
35	Z3I	Unassigned Prefix
36	Z3J	Blue Cross Blue Shield of Arizona
37	Z3K	Blue Cross Blue Shield of Illinois
38	Z3L	Anthem Blue Cross Blue Shield of New Hampshire
39	Z3M	Blue Cross Blue Shield of Rhode Island
40	Z3N	Blue Cross Blue Shield of Illinois
41	Z3O	Unassigned Prefix
42	Z3P	Unassigned Prefix
43	Z3Q	Unassigned Prefix
44	Z3R	Blue Cross Blue Shield of Massachusetts
45	Z3S	Blue Cross Blue Shield of Illinois
46	Z3T	Unassigned Prefix
47	Z3U	Unassigned Prefix
48	Z3V	Unassigned Prefix
49	Z3W	Unassigned Prefix
50	Z3X	Anthem Blue Cross Blue Shield of New Hampshire
51	Z3Y	Unassigned Prefix
52	Z3Z	Unassigned Prefix
53	Z4A	Unassigned Prefix
54	Z4B	Anthem Blue Cross Blue Shield of Colorado
55	Z4C	Couple Health
56	Z4D	Unassigned Prefix
57	Z4E	Blue Cross Blue Shield of Arizona
58	Z4F	Unassigned Prefix
59	Z4G	Regence Blue Cross Blue Shield
60	Z4H	Unassigned Prefix
61	Z4I	Unassigned Prefix
62	Z4J	Unassigned Prefix
63	Z4K	Regence Blue Cross Blue Shield
64	Z4L	Regence Blue Cross Blue Shield
65	Z4M	Blue Cross Blue Shield of Arizona
66	Z4N	Blue Cross Blue Shield of Arizona
67	Z4O	Unassigned Prefix
68	Z4P	Blue Cross Blue Shield of Arizona
69	Z4Q	Unassigned Prefix
70	Z4R	Regence Blue Cross Blue Shield
71	Z4S	Unassigned Prefix
72	Z4T	Regence Blue Cross Blue Shield
73	Z4U	Unassigned Prefix
74	Z4V	Regence Blue Cross Blue Shield
75	Z4W	Unassigned Prefix
76	Z4X	Blue Cross Blue Shield of Arizona
77	Z4Y	Unassigned Prefix
78	Z4Z	Anthem Blue Cross of California
79	Z5A	Blue Cross Blue Shield of Illinois
80	Z5B	Anthem Blue Cross Blue Shield of Indiana
81	Z5C	Anthem Blue Cross Blue Shield of Indiana
82	Z5D	Anthem Blue Cross Blue Shield of Indiana
83	Z5E	Anthem Blue Cross Blue Shield of Indiana
84	Z5F	Anthem Blue Cross Blue Shield of Indiana
85	Z5G	Anthem Blue Cross Blue Shield of Indiana
86	Z5H	Anthem Blue Cross Blue Shield of Indiana
87	Z5I	Unassigned Prefix
88	Z5J	Anthem Blue Cross Blue Shield of Indiana
89	Z5K	Blue Shield of Northeastern New York
90	Z5L	Anthem Blue Cross Blue Shield of Indiana
91	Z5M	Blue Cross Blue Shield of Arizona
92	Z5N	Anthem Blue Cross Blue Shield of Indiana
93	Z5O	Unassigned Prefix
94	Z5P	Anthem Blue Cross Blue Shield of Indiana
95	Z5Q	Anthem Blue Cross Blue Shield of Indiana
96	Z5R	Anthem Blue Cross Blue Shield of Indiana
97	Z5S	Anthem Blue Cross Blue Shield of Indiana
98	Z5T	Unassigned Prefix
99	Z5U	Anthem Blue Cross Blue Shield of Indiana
100	Z5V	Anthem Blue Cross Blue Shield of Indiana
101	Z5W	Anthem Blue Cross Blue Shield of Indiana
102	Z5X	Anthem Blue Cross Blue Shield of Indiana
103	Z5Y	Unassigned Prefix
104	Z5Z	Anthem Blue Cross Blue Shield of Indiana
105	Z6A	Empire Blue Cross Blue Shield
106	Z6B	Unassigned Prefix
107	Z6C	Anthem Blue Cross Blue Shield of Colorado
108	Z6D	Anthem Blue Cross of California
109	Z6E	Anthem Blue Cross Blue Shield of Wiconsin
110	Z6F	Unassigned Prefix
111	Z6G	Anthem Blue Cross of California
112	Z6H	Anthem Blue Cross of California
113	Z6I	Unassigned Prefix
114	Z6J	Anthem Blue Cross Blue Shield of Connecticut
115	Z6K	Anthem Blue Cross Blue Shield of Connecticut
116	Z6L	Unassigned Prefix
117	Z6M	Anthem Blue Cross Blue Shield of New Hampshire
118	Z6N	Premera Blue Cross Blue Shield of Alaska
119	Z6O	Unassigned Prefix
120	Z6P	Anthem Blue Cross Blue Shield of Indiana
121	Z6Q	Unassigned Prefix
122	Z6R	Blue Cross Blue Shield of Texas
123	Z6S	Blue Cross Blue Shield of Texas
124	Z6T	Blue Cross Blue Shield of Texas
125	Z6U	Unassigned Prefix
126	Z6V	Unassigned Prefix
127	Z6W	Anthem Blue Cross Blue Shield of Wiconsin
128	Z6X	Unassigned Prefix
129	Z6Y	Anthem Blue Cross Blue Shield of Georgia
130	Z6Z	Anthem Blue Cross Blue Shield of Wiconsin
131	Z7A	Anthem Blue Cross Blue Shield of Indiana
132	Z7B	Anthem Blue Cross Blue Shield of Indiana
133	Z7C	Anthem Blue Cross Blue Shield of Indiana
134	Z7D	Anthem Blue Cross Blue Shield of Indiana
135	Z7E	Anthem Blue Cross Blue Shield of Indiana
136	Z7F	Anthem Blue Cross Blue Shield of Indiana
137	Z7G	Anthem Blue Cross Blue Shield of Indiana
138	Z7H	Anthem Blue Cross Blue Shield of Indiana
139	Z7I	Unassigned Prefix
140	Z7J	Anthem Blue Cross Blue Shield of Indiana
141	Z7K	Anthem Blue Cross Blue Shield of Indiana
142	Z7L	Anthem Blue Cross Blue Shield of Connecticut
143	Z7M	Blue Cross Blue Shield of Rhode Island
144	Z7N	Unassigned Prefix
145	Z7O	Unassigned Prefix
146	Z7P	Unassigned Prefix
147	Z7Q	Unassigned Prefix
148	Z7R	Unassigned Prefix
149	Z7S	Unassigned Prefix
150	Z7T	Unassigned Prefix
151	Z7U	Unassigned Prefix
152	Z7V	Unassigned Prefix
153	Z7W	Anthem Blue Cross Blue Shield of Wiconsin
154	Z7X	Anthem Blue Cross Blue Shield of Wiconsin
155	Z7Y	Unassigned Prefix
156	Z7Z	Anthem Blue Cross Blue Shield of Wiconsin
157	Z8A	Anthem Blue Cross of California
158	Z8B	Unassigned Prefix
159	Z8C	Anthem Blue Cross Blue Shield of Indiana
160	Z8D	Anthem Blue Cross Blue Shield of Indiana
161	Z8E	Anthem Blue Cross Blue Shield of Indiana
162	Z8F	Anthem Blue Cross Blue Shield of Indiana
163	Z8G	Unassigned Prefix
164	Z8H	Anthem Blue Cross Blue Shield of Georgia
165	Z8I	Unassigned Prefix
166	Z8J	Unassigned Prefix
167	Z8K	Anthem Blue Cross Blue Shield of Georgia
168	Z8L	Anthem Blue Cross Blue Shield of Georgia
169	Z8M	Blue Cross Blue Shield of Arizona
170	Z8N	Unassigned Prefix
171	Z8O	Unassigned Prefix
172	Z8P	Premera Blue Cross Blue Shield of Alaska
173	Z8Q	Unassigned Prefix
174	Z8R	Premera Blue Cross Blue Shield of Alaska
175	Z8S	Unassigned Prefix
176	Z8T	Unassigned Prefix
177	Z8U	Unassigned Prefix
178	Z8V	Unassigned Prefix
179	Z8W	Unassigned Prefix
180	Z8X	Unassigned Prefix
181	Z8Y	Unassigned Prefix
182	Z8Z	Unassigned Prefix
183	Z9A	Anthem Blue Cross Blue Shield of New Hampshire
184	Z9B	Regence Blue Cross Blue Shield
185	Z9C	Regence Blue Cross Blue Shield
186	Z9D	Anthem Blue Cross Blue Shield of Ohio
187	Z9E	Unassigned Prefix
188	Z9F	Regence Blue Cross Blue Shield
189	Z9G	Regence Blue Cross Blue Shield
190	Z9H	Anthem Blue Cross Blue Shield of Ohio
191	Z9I	Unassigned Prefix
192	Z9J	Unassigned Prefix
193	Z9K	Blue Cross Blue Shield of Rhode Island
194	Z9L	Unassigned Prefix
195	Z9M	Anthem Blue Cross of California
196	Z9N	Regence Blue Cross Blue Shield
197	Z9O	Unassigned Prefix
198	Z9P	Unassigned Prefix
199	Z9Q	Unassigned Prefix
200	Z9R	Regence Blue Cross Blue Shield
201	Z9S	Anthem Blue Cross of California
202	Z9T	Anthem Blue Cross Blue Shield of Connecticut
203	Z9U	Unassigned Prefix
204	Z9V	Unassigned Prefix
205	Z9W	Unassigned Prefix
206	Z9X	Unassigned Prefix
207	Z9Y	Unassigned Prefix
208	Z9Z	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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