$ query “AS2721” --type=asn → 1 result(s)

AS2721 · SCLR

CULR LLC

AS2721 is operated by CULR LLC and serves as a residential access provider, established in the United States in 2009. The system announces 8 960 IPv4 addresses, and supports IPv6. Its primary geographic footprint is in the United States.

Basic Information

Country
🇺🇸 United States
Category
Internet Service Provider
Network Role
Access Provider
Data Origin
Authoritative — Metadata from authoritative RIR registry (ARIN, RIPE, APNIC, etc.)
Registered
August 28, 2009
Last Changed
October 01, 2026
Last Seen
October 10, 2026 (active)

Prefix Summary

IPv4 Prefixes (raw / aggregated)
5 / 3
IPv6 Prefixes (raw / aggregated)
1 / 1
IPv4 Addresses
8 960
Largest IPv4 Prefix
/19 (8 192 addresses)
Largest IPv6 Prefix
/32
Geolocated Countries
🇺🇸 United States (8 960 IPs)
Prefix Changed
June 30, 2026

Reputation

Reputation
Pristine — 0 flagged IPs

Connectivity Summary

Upstream Providers
5 upstreams providing transit
Peers
2 networks exchanging traffic without transit
Downstream Customers
3 downstreams buying transit
Degree
10 unique BGP neighbors
Reach
7 networks in customer cone

Upstream Providers (5)

  • AS174 — COGENT-174 (Tier-1 transit)
  • AS3257 — GTT-BACKBONE (Tier-1 transit)
  • AS11164 — INTERNET2-I2PX
  • AS11537 — INTERNET2-RESEARCH-EDU
  • AS2711 — SPIRITTEL-AS

Prefix Lists

IPv4 Prefixes (5 total)

  • 205.186.224.0/19 (8 192 addresses (/19 prefix))
  • 205.186.46.0/23 (512 addresses (/23 prefix))
  • 192.188.108.0/24 (256 addresses (/24 prefix))

IPv6 Prefixes (1 total)

  • 2606:c000::/32