AS263356 CNT Fiber

🇧🇷

Org handle: 199168

LACNICallocated

Announced Prefixes (BGP)

38total

15 IPv423 IPv6

IPv4 Addresses

Allocated (RIR)2,048

Announced (BGP)8,192

IPv6 Addresses

Allocated (RIR)7.9×10²⁸

Announced (BGP)3.1×10²⁹

Prefix Limit (IPv4)

Prefix Limit (IPv6)

100

Country

RIR

Status

allocated

Allocated

2014-03-18

Announced Prefixes

(BGP)38

Prefix	RPKI	IRR	Last Seen
191.37.72.0/21	Valid	Other IRR	2026-10-10
191.37.72.0/22	Valid	Other IRR	2026-10-10
191.37.72.0/23	Valid	Other IRR	2026-10-10
191.37.72.0/24	Valid	Other IRR	2026-10-10
191.37.73.0/24	Valid	Other IRR	2026-10-10
191.37.74.0/23	Valid	Other IRR	2026-10-10
191.37.74.0/24	Valid	Other IRR	2026-10-10
191.37.75.0/24	Valid	Other IRR	2026-10-10
191.37.76.0/22	Valid	Other IRR	2026-10-10
191.37.76.0/23	Valid	Other IRR	2026-10-10

1-10 of 38

1 / 4

(RIR)2

Prefix	Country	RIR	Status
191.37.72.0/21	🇧🇷 BR	LACNIC	allocated
2804:14e0::/32	🇧🇷 BR	LACNIC	allocated

(seen in AS paths)

Networks AS263356 hands its own prefixes to: transit providers, or peers at an exchange.

ASPA

No ASPA

External Links

What is an ASN?Autonomous systems, ASN ranges and how they are assigned
RPKI and route origin validationWhat the RPKI badges on the prefix list mean
ASPA explainedWhy AS263356 should publish an ASPA object
IPv4 transfers in the LACNIC regionMonthly volume and the latest registry transfers
ASN data in AI agents and SIEMMCP server and API integrations

API

Returns ASN details, announced prefixes, and BGP routing data.

curl -s "https://api.ipctl.io/v1/asn/263356" | jq