Zayo Group

AS6461
Tier 1 Carrier/ISPTransit-Freewww.zayo.com →

Zayo Group operates a global Tier 1 IP backbone underpinned by approximately 130,000 miles of owned fiber infrastructure, with particularly strong metro and long-haul coverage across North America and Europe. Headquartered in Boulder, Colorado, Zayo provides IP transit, wavelengths, dark fiber, and dedicated internet access to carriers, enterprises, and cloud providers. The network holds AS cone rank #12 globally and peers directly with all major content and cloud providers.

Data verified: 03/26/2026
Routing & Connectivity
AS Cone Rank#12
Known Peers2,905
Prefixes v4217
Prefixes v613
IX Presence45+IXPs
RPKI ROVnot_enabled
Avg Path Length2.6
Downstream Peers2,272+
Source: bgp.toolsAvg path length derived from RouteViews (CC-BY 4.0)Verified 04/02/2026View live data on bgp.tools →
Operational Capabilities
BGP Communities
Granular
Per-peer prepend (1x/2x/3x) by named carrier, blackhole (6461:5990), customer region tagging (US east/west/central, EU, APAC, Canada, Africa, Australia), peer type informational tags
Flowspec
Not supported
RTBH
Supported
IPv6
Native dual-stack
Port Sizes
1G – 100G
Commit Model
Flat-rate and burstable (95th percentile)
Source: Carrier documentationCarrier-sourcedVerified 03/26/2026View BGP communities on bgp.tools →
Content Provider Reach
10 providers tracked
Google
AS15169
Direct peer
Amazon/AWS
AS16509
Direct peer
Microsoft/Azure
AS8075
Direct peer
Meta
AS32934
Direct peer
Cloudflare
AS13335
Direct peer
Source: bgp.tools adjacency dataAdjacency only — no quality assessmentVerified 03/26/2026View all peers on bgp.tools →
Routing Governance
RPKI ROA Coverage
~51%
of originated prefixes have valid ROAs
RPKI Route Origin Validation
not_enabled
IRR Records
ARIN
~129 route objects registered
DDoS Mitigation
Basic (RTBH blackhole community only)
RPKI: bgp.toolsIRR: IRR ExplorerVerified 04/02/2026
Facility Presence
8 locations

Dallas, TX

1g10g100g
CoreSite DA1CoreSite
1g10g100g
Verify This Data
bgp.tools
Live routing metrics, communities, RPKI
→
PeeringDB
Peering policy, facilities, NOC contacts
→
CAIDA AS Rank
Customer cone, provider/peer relationships
→
RIPEstat
Routing history, BGP updates, path analysis
→
bgp.he.net
Prefix list, peers, IX participation, IRR
→
IRR Explorer
IRR objects, RPKI comparison, origin validation
→
Zayo Group Looking Glass
Live route lookup from Zayo Group’s routers
→
Zayo Group Website
Product pages, SLA terms, BGP community docs
→
Operator Reviews

No reviews yet. Be the first operator to review Zayo Group.

Reviews cover 7 dimensions: Provisioning, Performance, NOC Support, BGP Quality, Billing, Contracts, Account Management.

Community Intelligence
Operator experiences, peering dynamics, and discussion threads about Zayo Group — contributed by the community
→

See something wrong or outdated? Let us know →

Peerfloor carrier data is community-maintained. Corrections are verified and applied within 48 hours.

Privacy·Terms·Methodology·© 2026 Peerfloor LLC