Which of the following organizations would an ISP based in Europe approach for an IP prefix assignment?

Question

Options

• AARIN
• BICANN
• CRIPE NCC
• DLACNIC
• EAFNIC

• A
  4% (2)
• B
  2% (1)
• C
  91% (41)
• E
  2% (1)

Explanation

RIPE NCC (Réseaux IP Européens Network Coordination Centre) is the Regional Internet Registry (RIR) responsible for IP address allocation in Europe, the Middle East, and Central Asia - making it the correct choice for a European ISP.

Why the distractors are wrong:

• A. ARIN - serves North America and some Caribbean territories
• B. ICANN - oversees global internet governance and DNS coordination, but delegates IP allocation to the five RIRs; it does not directly assign prefixes
• D. LACNIC - serves Latin America and the Caribbean
• E. AFNIC - is a country-code domain registry for France (.fr), not an RIR; it does not assign IP prefixes

Memory tip: The five RIRs map to regions - think of RIPE as "Europe" (RIPE sounds like "ripe" European culture), ARIN for America, APNIC for Asia-Pacific, LACNIC for Latin America, and AFRINIC for Africa. When you see a European ISP, RIPE NCC is always the answer.

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