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AS29107
AS29107 SYNAPSE-AS Synapse Network LTD
SYNAPSE-AS Synapse Network LTD · registered in the United Kingdom
IPv4 addresses 54,272 8 prefixes · 0.002% of announced IPv4
Rank in United Kingdom #84 largest network in GB by IPv4 space, of 2,074 · 0.08% of GB
Rank worldwide #3,802 of 79,396 networks with IPv4
IPv6 2 x /48 2 prefixes
IPv4 prefixes
All 8 prefixes, in address order.
77.87.144.0/21 91.216.176.0/24 92.249.64.0/18 141.98.109.0/24 178.54.0.0/17 193.201.80.0/23 194.0.88.0/22 195.69.84.0/22
IPv6 prefixes
All 2 prefixes.
2001:67c:2b14::/48 2a07:76c0:2::/48
Similar-sized networks in United Kingdom
ASN Name IPv4 addresses
AS59395 #81 EFAR-AS Southern Communications Ltd56,320
AS35425 #82 BYTEMARK-AS Iomart Managed Services Limited55,808
AS4455 #83 BSO IX Reach Ltd54,784
AS12701 #85 BARCAP Barclays Bank plc52,992
AS15533 #86 SASEUROPE Redcentric Solutions Ltd51,968
AS39356 #87 Avanti-UK-AS Avanti Broadband Ltd50,944
IP-to-ASN data: iptoasn.com (public domain). Snapshot downloaded 2026-11-11, refreshed daily. Ranges are what each network announces in BGP, not registry allocations. Data sources