Tanod Util

utilpeek: parse and format a phone number (numbering-plan check)

parse_phone_number

Read-onlyIdempotent

utilpeek: parse and format a phone number. Input: number. Returns valid, possible, e164, international, national, rfc3966, country_calling_code, region, type (mobile, fixed_line, toll_free, ...), carrier, location and timezones. A string that is not a phone number, or a national form without region, is a 422 (not charged). Offline numbering-plan check (phonenumbers, Apache-2.0): valid means the number fits its country's numbering plan, not that it is assigned, in service or reachable; carrier is the original range holder (ported numbers are not detected). The submitted value is processed in memory only, never logged or stored. Typically under 0.1 s. Price: USD 0.001. Free: 10 utilpeek calls per IP per UTC day. Docs: https://tanod.dev/learn/phone-number-validation-api.html

Input Schema

TableJSON Schema

Name	Required	Description	Default
`number`	Yes	Phone number: +CC international form, or national form with region.
`region`	No	Optional ISO 3166-1 alpha-2 region for a national-form number (e.g. US).

Output Schema

TableJSON Schema

Name	Required	Description
`e164`	No
`note`	No
`type`	No
`error`	No	Only on an error result: an object {code, message}, or the reason string of an x402 PaymentRequired object.
`valid`	No
`region`	No
`source`	No
`carrier`	No
`rfc3966`	No
`location`	No
`national`	No
`possible`	No
`extension`	No
`timezones`	No
`international`	No
`country_calling_code`	No

Schema Changelog

Changes observed during successful MCP inspections.

Changed1 schema field changedOct 8, 2026

changedOutput schema / (root)

Previous value: -nullNew value: +{
+  "properties": {
+    "carrier": {
+      "type": [
+        "string",
+        "null"
+      ]
+    },
+    "country_calling_code": {
+      "type": [
+        "integer",
+        "null"
+      ]
+    },
+    "e164": {
+      "type": [
+        "string",
+        "null"
+      ]
+    },
+    "error": {
+      "description": "Only on an error result: an object {code, message}, or the reason string of an x402 PaymentRequired object."
+    },
+    "extension": {
+      "type": [
+        "string",
+        "null"
+      ]
+    },
+    "international": {
+      "type": [
+        "string",
+        "null"
+      ]
+    },
+    "location": {
+      "type": [
+        "string",
+        "null"
+      ]
+    },
+    "national": {
+      "type": [
+        "string",
+        "null"
+      ]
+    },
+    "note": {
+      "type": [
+        "string",
+        "null"
+      ]
+    },
+    "possible": {
+      "type": [
+        "boolean",
+        "null"
+      ]
+    },
+    "region": {
+      "type": [
+        "string",
+        "null"
+      ]
+    },
+    "rfc3966": {
+      "type": [
+        "string",
+        "null"
+      ]
+    },
+    "source": {
+      "properties": {
+        "library": {
+          "type": [
+            "string",
+            "null"
+          ]
+        },
+        "license": {
+          "type": [
+            "string",
+            "null"
+          ]
+        },
+        "url": {
+          "type": [
+            "string",
+            "null"
+          ]
+        }
+      },
+      "type": [
+        "object",
+        "null"
+      ]
+    },
+    "timezones": {
+      "items": {
+        "type": [
+          "string",
+          "null"
+        ]
+      },
+      "type": [
+        "array",
+        "null"
+      ]
+    },
+    "type": {
+      "type": [
+        "string",
+        "null"
+      ]
+    },
+    "valid": {
+      "type": [
+        "boolean",
+        "null"
+      ]
+    }
+  },
+  "type": "object"
+}

First observedOct 8, 2026

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