diff --git a/data/seeds__network_version.csv b/data/seeds__network_version.csv
new file mode 100644
index 0000000..0d7b837
--- /dev/null
+++ b/data/seeds__network_version.csv
@@ -0,0 +1,26 @@
+root_height,network_version
+1065711,candidate-04
+2033592,candidate-05
+3187931,candidate-06
+4132133,candidate-07
+4972987,candidate-08
+6483246,candidate-09
+7601063,mainnet-01
+8742959,mainnet-02
+9737133,mainnet-03
+9992020,mainnet-04
+12020337,mainnet-05
+12609237,mainnet-06
+13404174,mainnet-07
+13950742,mainnet-08
+14892104,mainnet-09
+15791891,mainnet-10
+16755602,mainnet-11
+17544523,mainnet-12
+18587478,mainnet-13
+19050753,mainnet-14
+21291692,mainnet-15
+23830813,mainnet-16
+27341470,mainnet-17
+31735955,mainnet-18
+35858811,mainnet-19
\ No newline at end of file
diff --git a/models/core/core__fact_blocks.sql b/models/core/core__fact_blocks.sql
index ae9df0d..dedf620 100644
--- a/models/core/core__fact_blocks.sql
+++ b/models/core/core__fact_blocks.sql
@@ -16,6 +16,7 @@ gold_blocks AS (
         block_height,
         block_timestamp,
         network,
+        network_version,
         chain_id,
         tx_count,
         id,
diff --git a/models/core/core__fact_blocks.yml b/models/core/core__fact_blocks.yml
index c6ac4f0..797ccfe 100644
--- a/models/core/core__fact_blocks.yml
+++ b/models/core/core__fact_blocks.yml
@@ -39,6 +39,15 @@ models:
                 - STRING
                 - VARCHAR
 
+      - name: NETWORK_VERSION
+        description: "{{ doc('network_version') }}"
+        tests:
+          - not_null
+          - dbt_expectations.expect_column_values_to_be_in_type_list:
+              column_type_list:
+                - STRING
+                - VARCHAR
+
       - name: CHAIN_ID
         description: "{{ doc('chain_id') }}"
         tests:
diff --git a/models/descriptions/network_version.md b/models/descriptions/network_version.md
new file mode 100644
index 0000000..8b5245a
--- /dev/null
+++ b/models/descriptions/network_version.md
@@ -0,0 +1,5 @@
+{% docs network_version %}
+
+The version of the Blockchain that cooresponds with the block height. For more information on Flow's network upgrades (Sporks), see https://developers.flow.com/nodes/node-operation/spork
+
+{% enddocs %}
\ No newline at end of file
diff --git a/models/silver/silver__blocks.sql b/models/silver/silver__blocks.sql
index 92646e0..fdd0113 100644
--- a/models/silver/silver__blocks.sql
+++ b/models/silver/silver__blocks.sql
@@ -49,8 +49,36 @@ silver_blocks AS (
     _inserted_timestamp
   FROM
     bronze_blocks
+),
+network_version AS (
+  SELECT
+    root_height,
+    network_version,
+    COALESCE(LAG(root_height) over (
+  ORDER BY
+    network_version DESC) - 1, 'inf' :: FLOAT) AS end_height
+  FROM
+    {{ ref('seeds__network_version') }}
+),
+add_version AS (
+  SELECT
+    block_height,
+    block_timestamp,
+    network,
+    v.network_version,
+    chain_id,
+    tx_count,
+    id,
+    parent_id,
+    _ingested_at,
+    _inserted_timestamp
+  FROM
+    silver_blocks b
+    LEFT JOIN network_version v
+    ON b.block_height BETWEEN v.root_height
+    AND v.end_height
 )
 SELECT
   *
 FROM
-  silver_blocks
+  add_version
diff --git a/models/silver/silver__blocks.yml b/models/silver/silver__blocks.yml
index dac718b..f1a5f66 100644
--- a/models/silver/silver__blocks.yml
+++ b/models/silver/silver__blocks.yml
@@ -39,6 +39,15 @@ models:
                 - STRING
                 - VARCHAR
 
+      - name: network_version
+        description: "{{ doc('network_version') }}"
+        tests:
+          - not_null
+          - dbt_expectations.expect_column_values_to_be_in_type_list:
+              column_type_list:
+                - STRING
+                - VARCHAR
+
       - name: chain_id
         description: "{{ doc('chain_id') }}"
         tests: