AS139883SPTEL PTE. LTD.
As of 24th October 2026, AS139883 (SPTEL PTE. LTD.), a network registered in Singapore with APNIC, originates 5 IPv4 prefixes covering 1.3k addresses and 1 IPv6 prefix. By IPv4 address space that makes it the 33,391st-largest of the 79,671 networks we see originating IPv4, and the 197th-largest of 443 in Singapore. It is seen behind 1 upstream network, most often AS23856 (SPTEL PTE. LTD.), and in front of 28 downstream networks. Every one of its announcements has a valid RPKI ROA, and none are RPKI-invalid. 100% of its routes reach at least 90% of full-feed peers.
At a glance
IPv4 prefixes
IPv6 prefixes
IPv4 addresses
IPv6 /64s
Upstream graph
The networks AS139883 is seen behind, one and two hops out, drawn from real AS paths.
Networks observed one and two hops upstream of AS139883 in real AS paths. A thicker line means more vantage points saw that adjacency, so weight tracks how well attested it is — not how much traffic it carries. Adjacency is an observation; whether it is a transit purchase or a settlement-free peering is an inference, and is labelled as one wherever we show it.
Neighbouring networks
57
adjacent networks
- Upstreams
- 12%
- Peers
- 2849%
- Downstreams
- 2849%
Networks carrying this one's traffic toward the rest of the internet.
| Network | Country | Relationship | Paths | Vantage pts |
|---|---|---|---|---|
| AS23856SPTEL PTE. LTD. | Peer | 5,392 | 138 |
Prefixes
The largest blocks AS139883 originates, widest first.
| Prefix | Addresses | Visibility |
|---|---|---|
| 61.13.236.0/24 | 256 | 76/76 |
| 61.16.51.0/24 | 256 | 76/76 |
| 61.16.52.0/24 | 256 | 76/76 |
| 61.16.110.0/24 | 256 | 76/76 |
| 166.120.128.0/24 | 256 | 76/76 |
| 2407:9880:8112::/48 | 65.5k × /64 | 62/63 |
Routing health
How AS139883's own announcements validate against RPKI and how far they propagate. The same measures for the whole routing table are on the routing table in numbers.
RPKI origin validation
- Valid100.0%6
- Invalid0.0%0
- No ROA0.0%0
Propagation
- Globally propagated90% of full-feed peers or more100.0%6
- Partially propagated40% to 90%0.0%0
- Seen by few peersUnder 40%0.0%0
Prefix sizes
IPv4 — 5 prefixes
IPv6 — 1 prefixes
- /4865.5k × /64100.0%1
Recent changes
Announcements that started or stopped since 24th Sept 2026.
- Withdrawn61.16.55.0/2412th Oct 2026
- Announced61.16.55.0/244th Oct 2026
- Withdrawn61.16.55.0/2428th Sept 2026
- Announced61.13.236.0/2428th Sept 2026
- Announced61.16.55.0/2428th Sept 2026
- Announced61.13.236.0/2427th Sept 2026
- Withdrawn61.13.236.0/2427th Sept 2026
- Withdrawn61.13.236.0/2427th Sept 2026
- Announced61.13.236.0/2427th Sept 2026
- Withdrawn61.13.236.0/2425th Sept 2026
Routing data derived from RouteViews MRT archives, BGPKIT relationship inference and public registry data.