IBAN format · LY

Libya IBAN format: 25 characters.

Libya IBANs have 25 characters: the country code LY, two check digits and a 21-character BBAN, the national account number, laid out as 3!n3!n15!n.

Libya IBAN structure

LY83002048000020100120361

Country code: LY
Check digits: 83
Bank code: 002
Branch code: 048
Account: 000020100120361

Parts of a Libya IBAN and their positions
Positions	Part	In the example
1–2	Country code	LY
3–4	Check digits	83
5–7	Bank code	002
8–10	Branch code	048
11–25	Account	000020100120361

The BBAN, segment by segment

The registry writes the BBAN in SWIFT notation: n is a digit, a an upper-case letter, c a letter or digit, and the ! means a fixed length. 3!n3!n15!n reads:

The Libya BBAN format, segment by segment
Positions	Notation	Holds	Example
5–7	3!n	3 digitsBank code	002
8–10	3!n	3 digitsBranch code	048
11–25	15!n	15 digits	000020100120361

Libya IBAN example

LY83 0020 4800 0020 1001 2036 1 is the sample the SWIFT IBAN Registry publishes for Libya: a well-formed IBAN for showing the format, not a real account. Written electronically it has no spaces (LY83002048000020100120361); on paper it is printed in groups of four.

Its check digits, worked through with ISO 7064 mod 97-10:

Move the country code and check digits to the end
002048000020100120361LY83
Replace each letter with two digits (A = 10 … Z = 35)
L = 21, Y = 34
002048000020100120361213483
Divide that number by 97 and keep the remainder
Remainder 1. A valid IBAN always leaves 1, so the check digits are right.
Where the check digits come from
Put 00 in their place (LY00…), repeat steps 1–3: remainder 15. The check digits are 98 − 15 = 83.

SEPA

Libya is not in the Single Euro Payments Area, so SEPA credit transfers and direct debits don’t reach LY IBANs.

What the format can and can’t tell you

Valid means the structure and check digits are right — not that the account exists or can receive payments.
National check digits inside the BBAN (e.g. the French RIB key, or the Spanish, Belgian and Italian CIN digits) are not verified.
Bank and branch codes are read from their positions; they are not looked up in a bank directory.

Check LY IBANs from code or an AI agent

REST · GET · no key

curl -s 'https://payopskit.com/api/v1/iban/LY83002048000020100120361'

MCP · tools/call · validate_iban

{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "validate_iban",
    "arguments": {
      "iban": "LY83002048000020100120361"
    }
  }
}

Response (JSON)

{
  "input": "LY83002048000020100120361",
  "iban": "LY83002048000020100120361",
  "print": "LY83 0020 4800 0020 1001 2036 1",
  "valid": true,
  "country": {
    "code": "LY",
    "name": "Libya",
    "sepa": false,
    "sepaNote": null
  },
  "checkDigits": "83",
  "expectedCheckDigits": "83",
  "length": {
    "actual": 25,
    "expected": 25
  },
  "bban": "002048000020100120361",
  "bbanFormat": "3!n3!n15!n",
  "bankCode": "002",
  "branchCode": "048",
  "parts": [
    {
      "label": "Country code",
      "value": "LY",
      "start": 0,
      "end": 2,
      "kind": "country"
    },
    {
      "label": "Check digits",
      "value": "83",
      "start": 2,
      "end": 4,
      "kind": "check"
    },
    {
      "label": "Bank code",
      "value": "002",
      "start": 4,
      "end": 7,
      "kind": "bank"
    },
    {
      "label": "Branch code",
      "value": "048",
      "start": 7,
      "end": 10,
      "kind": "branch"
    },
    {
      "label": "Account",
      "value": "000020100120361",
      "start": 10,
      "end": 25,
      "kind": "account"
    }
  ],
  "checks": {
    "characters": true,
    "country": true,
    "length": true,
    "bbanFormat": true,
    "checksum": true
  },
  "errors": [],
  "notes": [
    "Valid means the structure and check digits are right — not that the account exists or can receive payments.",
    "National check digits inside the BBAN (e.g. the French RIB key, or the Spanish, Belgian and Italian CIN digits) are not verified."
  ]
}

The MCP server is at /mcp (Streamable HTTP, no key); the API and MCP docs show how to connect Claude, Cursor or VS Code.

From a national account number: GET /api/v1/iban/check-digits?country=LY&bban=… or the MCP tool compute_iban_check_digits computes the check digits and the whole IBAN.

Other 25-character IBANs

The same length doesn’t mean the same structure: compare the BBAN formats. All IBAN formats and lengths

Source: the SWIFT IBAN Registry (ISO 13616), transcribed and checked against each country’s registry example; the positions of bank and branch codes are given only where the registry’s are well established. The SWIFT IBAN Registry is the authority. Informational only.