Sumofiber

Data as of 2026-07-26
Registry
Cluster stats
Netblocks87 · 58,887 IPv4 addresses
IPv6 16 prefixes (largest 2604:f580::/32)
All fragments 92 blocks across 2 clusters
Cluster ID214403795
RegistryBGP
Customersfind customers using this network →
Evidence & provenance ?
Attribution Registry record
Shared handles clustered on 11 shared RIR contact/maintainer handles
Registry names 3 distinct registrant names across these blocks
full provenance (JSON) → · how attribution works · report an issue

Footprint over time

6 weekly snapshots · JSON
90 +5 netblocks since 2026-07-05
2026-07-05 peak 90 2026-07-26

IP Ranges (87)

showing 50 of 87 — see all — ⬇ export CSV
CIDR Org name Registry Status Confidence
38.59.192.0/23 Sumofiber BGP ANNOUNCED ● high
38.59.194.0/23 Sumofiber BGP ANNOUNCED ● high
38.59.196.0/22 Sumofiber BGP ANNOUNCED ● high
38.59.200.0/21 Sumofiber BGP ANNOUNCED ● high
38.59.208.0/21 Sumofiber BGP ANNOUNCED ● high
38.59.216.0/23 Sumofiber BGP ANNOUNCED ● high
38.59.218.0/23 Sumofiber BGP ANNOUNCED ● high
38.59.222.0/24 Sumofiber BGP ANNOUNCED ● high
38.59.223.0/24 Sumofiber BGP ANNOUNCED ● high
38.70.240.0/23 Sumofiber BGP ANNOUNCED ● high
38.70.242.0/24 Sumofiber BGP ANNOUNCED ● high
38.70.243.0/24 Sumofiber BGP ANNOUNCED ● high
38.70.244.0/22 Sumofiber BGP ANNOUNCED ● high
38.70.248.0/23 Sumofiber BGP ANNOUNCED ● high
38.70.250.0/23 Sumofiber BGP ANNOUNCED ● high
38.70.252.0/22 Sumofiber BGP ANNOUNCED ● high
38.148.0.0/22 Sumofiber BGP ANNOUNCED ● high
38.148.4.0/22 Sumofiber BGP ANNOUNCED ● high
38.148.8.0/24 Sumofiber BGP ANNOUNCED ● high
38.148.8.0/21 Sumofiber BGP ANNOUNCED ● high
38.148.16.0/21 Sumofiber BGP ANNOUNCED ● high
38.148.24.0/21 Sumofiber BGP ANNOUNCED ● high
38.148.32.0/21 Sumofiber BGP ANNOUNCED ● high
38.148.40.0/21 Sumofiber BGP ANNOUNCED ● high
38.148.48.0/21 Sumofiber BGP ANNOUNCED ● high
38.148.56.0/21 Sumofiber BGP ANNOUNCED ● high
38.148.58.0/23 Sumofiber BGP ANNOUNCED ● high
38.148.60.0/23 Sumofiber BGP ANNOUNCED ● high
38.148.64.0/21 Sumofiber BGP ANNOUNCED ● high
38.148.72.0/24 Sumofiber BGP ANNOUNCED ● high
38.148.72.0/21 Sumofiber BGP ANNOUNCED ● high
38.148.80.0/21 Sumofiber BGP ANNOUNCED ● high
38.148.88.0/21 Sumofiber BGP ANNOUNCED ● high
38.148.96.0/21 Sumofiber BGP ANNOUNCED ● high
38.148.104.0/21 Sumofiber BGP ANNOUNCED ● high
38.148.104.0/24 Sumofiber BGP ANNOUNCED ● high
38.148.106.0/24 Sumofiber BGP ANNOUNCED ● high
38.148.107.0/24 Sumofiber BGP ANNOUNCED ● high
38.148.109.0/24 Sumofiber BGP ANNOUNCED ● high
38.148.110.0/24 Sumofiber BGP ANNOUNCED ● high
38.148.111.0/24 Sumofiber BGP ANNOUNCED ● high
38.148.112.0/21 Sumofiber BGP ANNOUNCED ● high
38.148.120.0/21 Sumofiber BGP ANNOUNCED ● high
45.41.232.0/24 Sumofiber BGP ANNOUNCED ● high
130.51.28.0/22 Sumofiber BGP ANNOUNCED ● high
149.112.13.17/32 SUMOFIBER PEERINGDB ASSIGNED ● high
149.112.31.9/32 SUMOFIBER PEERINGDB ASSIGNED ● high
162.220.82.0/24 Sumofiber BGP ANNOUNCED ● high
162.220.83.0/24 Sumofiber BGP ANNOUNCED ● high
162.221.116.0/24 Sumofiber BGP ANNOUNCED ● high

IPv6 ranges (16)

showing the 15 largest allocations
CIDR
2604:f580::/32
2604:f583::/32
2604:f585::/32
2604:f586::/32
2604:f587::/32
2604:f581:8000::/34
2604:f581:c000::/34
2602:fc38:1::/48
2606:a600:8::/48
2001:504:105::17/128
2001:504:13::211:223/128
2001:504:16::1082/128
2001:504:17:110::67/128
2001:504:60::d439/128
2602:fb05:1::9/128

Network trust

what's this?
RPKI hygiene: F how networks compare →
17.8% of checked blocks have valid RPKI ROA coverage (16 of 90)
No discrepancies found among checked blocks.

NIC Handles

ABUSE9078-ARIN APC16-ARIN APC16-ARIN APC16-ARIN AS33297 AS397162 AS399233 AS399462 AS4226 AS4226 CL-64