subnet.im

AS32043NeoFiber Communications inc.

United StatesRegistryARIN

As of 11th November 2026, AS32043 (NeoFiber Communications inc.), a network registered in the United States with ARIN, originates 250 IPv4 prefixes covering 107k addresses. By IPv4 address space that makes it the 2,330th-largest of the 80,747 networks we see originating IPv4, and the 750th-largest of 18,752 in the United States. It is seen behind 6 upstream networks, most often AS135377 (UCLOUD INFORMATION TECHNOLOGY (HK)…) and AS21859 (Zenlayer Inc). 99% of its announcements have a valid RPKI ROA; 2 are RPKI-invalid. Over 99% of its routes reach at least 90% of full-feed peers, and 2 prefixes are also originated by another network.

At a glance

IPv4 prefixes

250

IPv6 prefixes

0

IPv4 addresses

107k

IPv6 /64s

0

Upstream graph

The networks AS32043 is seen behind, one and two hops out, drawn from real AS paths.

AS32043Toward the internet core
Upstream graph for AS32043: 11 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS32043NeoFiber Communic…This networkAS984Octopus Web Solut…AS17497Liasail Global Ho…AS21859Zenlayer IncAS135377UCLOUD INFORMATIO…AS139327UCLOUD INFORMATIO…AS3491PCCW Global (HK) …AS174Cogent Communicat…AS4229Zenlayer IncAS2914NTT America, Inc.AS13335Cloudflare, Inc.AS17408AboveNet Communic…

Networks observed one and two hops upstream of AS32043 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

12

adjacent networks

Upstreams
650%
Peers
650%
Downstreams
00%

Networks carrying this one's traffic toward the rest of the internet.

Upstreams of AS32043
NetworkCountryRelationshipPathsVantage pts
AS135377UCLOUD INFORMATION TECHNOLOGY (HK) LIMITEDHKPeer11,84576
AS21859Zenlayer IncUSPeer2,88376
AS17497Liasail Global Hongkong LimitedHKPeer2,04776
AS984Octopus Web Solution Inc.USPeer1,27575
AS139327UCLOUD INFORMATION TECHNOLOGY (HK) LIMITEDHKPeer39473
AS20473The Constant Company, LLCUSPeer38076

Prefixes

All 250

The largest blocks AS32043 originates, widest first.

Largest prefixes originated by AS32043
PrefixAddressesVisibility
45.192.120.0/212k76/76
154.200.80.0/212k76/76
156.232.48.0/212k76/76
45.196.64.0/221k75/76
45.197.168.0/221k76/76
45.203.48.0/221k76/76
82.111.0.0/221k76/76
82.111.4.0/221k76/76
82.111.8.0/221k76/76
82.111.12.0/221k76/76

Routing health

How AS32043'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

  • Valid98.8%247
  • Invalid0.8%2
  • No ROA0.4%1

Propagation

  • Globally propagated90% of full-feed peers or more99.2%248
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%0.8%2

Prefix sizes

IPv4 — 250 prefixes

Recent changes

Announcements that started or stopped since 12th Oct 2026.

32 announced and 17 withdrawn in all; the most recent are shown.

Routing data derived from RouteViews MRT archives, BGPKIT relationship inference and public registry data.