$ query “AS21687” --type=asn → 1 result(s)
AS21687 · ZAYO-CCF-AS21687
Zayo Bandwidth
AS21687 is run by Zayo Bandwidth and is a hosting stub network, based in the United States since 2001. This AS seems to be primarily used for personal/hobby purposes.
Basic Information
- Country
- 🇺🇸 United States
- Category
- Personal/Hobby Network
- Network Role
- Stub Network
- Data Origin
- Authoritative — Metadata from authoritative RIR registry (ARIN, RIPE, APNIC, etc.)
- Registered
- June 08, 2001
- Last Changed
- June 03, 2026
- Last Seen
- June 11, 2026 (active)
Prefix Summary
- IPv4 Prefixes (raw / aggregated)
- 0 / 0
- IPv6 Prefixes (raw / aggregated)
- 3 / 3
- Largest IPv6 Prefix
- /39
- Prefix Changed
- March 04, 2026
Reputation
- Reputation
- Pristine — 0 flagged IPs
Connectivity Summary
- Upstream Providers
- 1 upstream providing transit
- Degree
- 1 unique BGP neighbor
- Reach
- 0 networks in customer cone
Upstream Providers (1)
- AS46887 — LIGHTOWER
Prefix Lists
IPv6 Prefixes (3 total)
- 2607:f7a8::/39
- 2607:f7a8:c00::/39
- 2607:f7a8:1200::/39