[REN-BGP-stats-all] IPv4 R&E Routing Table Report - CANARIE (R&E) view
REN Routing Table Report
cscora at bgp.nsrc.org
Thu Mar 20 22:30:44 UTC 2025
IPv4 R&E Routing Table Report 22:30 GMT Thu 20 Mar, 2025
IPv4 BGP Table (R&E) as seen at CANARIE.
Report Website: https://bgp.nsrc.org/REN
Detailed Analysis: https://bgp.nsrc.org/REN/CANARIE/
Analysis Summary
----------------
BGP routing table entries examined: 19448
Prefixes after maximum aggregation (per Origin AS): 10818
Deaggregation factor: 1.80
Unique aggregates announced (without unneeded subnets): 12070
Number of IPv4 prefixes with a valid ROA: 7570
Number of IPv4 prefixes with an invalid ROA: 23
Number of IPv4 prefixes with no ROA: 11855
Total ASes present in the Internet Routing Table: 2811
Prefixes per ASN: 6.92
Origin-only ASes present in the Internet Routing Table: 2439
Origin ASes announcing only one prefix: 1080
Transit ASes present in the Internet Routing Table: 372
Transit-only ASes present in the Internet Routing Table: 62
Paths with bogon ASNs present in the IPv4 Routing Table: 7
Average AS path length visible in the Internet Routing Table: 4.0
Max AS path length visible: 18
Max AS path prepend of ASN (395156) 12
Prefixes from unregistered ASNs in the Routing Table: 6
Number of instances of unregistered ASNs: 6
Number of 32-bit ASNs allocated by the RIRs: 46115
Number of 32-bit ASNs visible in the Routing Table: 706
Prefixes from 32-bit ASNs in the Routing Table: 1895
Number of bogon 32-bit ASNs visible in the Routing Table: 0
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 3
Number of addresses announced to Internet: 202896239
Equivalent to 12 /8s, 23 /16s and 243 /24s
Percentage of available address space announced: 5.5
Percentage of allocated address space announced: 5.5
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 99.6
Total number of prefixes smaller than registry allocations: 2403
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 4929
Total APNIC prefixes after maximum aggregation: 2330
APNIC Deaggregation factor: 2.12
Prefixes being announced from the APNIC address blocks: 4928
Unique aggregates announced from the APNIC address blocks: 2668
APNIC Region origin ASes present in the Internet Routing Table: 597
APNIC Prefixes per ASN: 8.25
APNIC Region origin ASes announcing only one prefix: 246
APNIC Region transit ASes present in the Internet Routing Table: 53
Average APNIC Region AS path length visible: 4.5
Max APNIC Region AS path length visible: 14
Number of APNIC region 32-bit ASNs visible in the Routing Table: 240
Number of APNIC addresses announced to Internet: 45589352
Equivalent to 2 /8s, 183 /16s and 163 /24s
APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079, 55296-56319,
58368-59391, 63488-64098, 64297-64395, 131072-155961
APNIC Address Blocks 1/8, 14/8, 27/8, 36/8, 39/8, 42/8, 43/8,
49/8, 58/8, 59/8, 60/8, 61/8, 101/8, 103/8,
106/8, 110/8, 111/8, 112/8, 113/8, 114/8, 115/8,
116/8, 117/8, 118/8, 119/8, 120/8, 121/8, 122/8,
123/8, 124/8, 125/8, 126/8, 133/8, 150/8, 153/8,
163/8, 171/8, 175/8, 180/8, 182/8, 183/8, 202/8,
203/8, 210/8, 211/8, 218/8, 219/8, 220/8, 221/8,
222/8, 223/8,
ARIN Region Analysis Summary
----------------------------
Prefixes being announced by ARIN Region ASes: 8412
Total ARIN prefixes after maximum aggregation: 4956
ARIN Deaggregation factor: 1.70
Prefixes being announced from the ARIN address blocks: 8427
Unique aggregates announced from the ARIN address blocks: 5546
ARIN Region origin ASes present in the Internet Routing Table: 1305
ARIN Prefixes per ASN: 6.46
ARIN Region origin ASes announcing only one prefix: 459
ARIN Region transit ASes present in the Internet Routing Table: 167
Average ARIN Region AS path length visible: 3.7
Max ARIN Region AS path length visible: 14
Number of ARIN region 32-bit ASNs visible in the Routing Table: 224
Number of ARIN addresses announced to Internet: 92889825
Equivalent to 5 /8s, 137 /16s and 98 /24s
ARIN AS Blocks 1-1876, 1902-2042, 2044-2046, 2048-2106
(pre-ERX allocations) 2138-2584, 2615-2772, 2823-2829, 2880-3153
3354-4607, 4865-5119, 5632-6655, 6912-7466
7723-8191, 10240-12287, 13312-15359, 16384-17407
18432-20479, 21504-23551, 25600-26591,
26624-27647, 29696-30719, 31744-33791
35840-36863, 39936-40959, 46080-47103
53248-55295, 62464-63487, 64198-64296, 393216-402332
ARIN Address Blocks 3/8, 4/8, 6/8, 7/8, 8/8, 9/8, 11/8,
12/8, 13/8, 15/8, 16/8, 17/8, 18/8, 19/8,
20/8, 21/8, 22/8, 23/8, 24/8, 26/8, 28/8,
29/8, 30/8, 32/8, 33/8, 34/8, 35/8, 38/8,
40/8, 44/8, 45/8, 47/8, 48/8, 50/8, 52/8,
54/8, 55/8, 56/8, 63/8, 64/8, 65/8, 66/8,
67/8, 68/8, 69/8, 70/8, 71/8, 72/8, 73/8,
74/8, 75/8, 76/8, 96/8, 97/8, 98/8, 99/8,
100/8, 104/8, 107/8, 108/8, 128/8, 129/8, 130/8,
131/8, 132/8, 134/8, 135/8, 136/8, 137/8, 138/8,
139/8, 140/8, 142/8, 143/8, 144/8, 146/8, 147/8,
148/8, 149/8, 152/8, 155/8, 156/8, 157/8, 158/8,
159/8, 160/8, 161/8, 162/8, 164/8, 165/8, 166/8,
167/8, 168/8, 169/8, 170/8, 172/8, 173/8, 174/8,
184/8, 192/8, 198/8, 199/8, 204/8, 205/8, 206/8,
207/8, 208/8, 209/8, 214/8, 215/8, 216/8,
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 3575
Total RIPE prefixes after maximum aggregation: 2851
RIPE Deaggregation factor: 1.25
Prefixes being announced from the RIPE address blocks: 3565
Unique aggregates announced from the RIPE address blocks: 2937
RIPE Region origin ASes present in the Internet Routing Table: 654
RIPE Prefixes per ASN: 5.45
RIPE Region origin ASes announcing only one prefix: 288
RIPE Region transit ASes present in the Internet Routing Table: 103
Average RIPE Region AS path length visible: 3.7
Max RIPE Region AS path length visible: 15
Number of RIPE region 32-bit ASNs visible in the Routing Table: 151
Number of RIPE addresses announced to Internet: 57980048
Equivalent to 3 /8s, 116 /16s and 180 /24s
RIPE AS Blocks 1877-1901, 2043, 2047, 2107-2136, 2585-2614
(pre-ERX allocations) 2773-2822, 2830-2879, 3154-3353, 5377-5631
6656-6911, 8192-9215, 12288-13311, 15360-16383
20480-21503, 24576-25599, 28672-29695
30720-31743, 33792-35839, 38912-39935
40960-45055, 47104-52223, 56320-58367
59392-61439, 61952-62463, 64396-64495
196608-216475
RIPE Address Blocks 2/8, 5/8, 25/8, 31/8, 37/8, 46/8, 51/8,
53/8, 57/8, 62/8, 77/8, 78/8, 79/8, 80/8,
81/8, 82/8, 83/8, 84/8, 85/8, 86/8, 87/8,
88/8, 89/8, 90/8, 91/8, 92/8, 93/8, 94/8,
95/8, 109/8, 141/8, 145/8, 151/8, 176/8, 178/8,
185/8, 188/8, 193/8, 194/8, 195/8, 212/8, 213/8,
217/8,
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 1381
Total LACNIC prefixes after maximum aggregation: 501
LACNIC Deaggregation factor: 2.76
Prefixes being announced from the LACNIC address blocks: 1381
Unique aggregates announced from the LACNIC address blocks: 686
LACNIC Region origin ASes present in the Internet Routing Table: 140
LACNIC Prefixes per ASN: 9.86
LACNIC Region origin ASes announcing only one prefix: 60
LACNIC Region transit ASes present in the Internet Routing Table: 23
Average LACNIC Region AS path length visible: 4.2
Max LACNIC Region AS path length visible: 11
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 61
Number of LACNIC addresses announced to Internet: 4085398
Equivalent to 0 /8s, 62 /16s and 86 /24s
LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247,
61440-61951, 64099-64197, 262144-274844 + ERX transfers
LACNIC Address Blocks 177/8, 179/8, 181/8, 186/8, 187/8, 189/8, 190/8,
191/8, 200/8, 201/8,
AfriNIC Region Analysis Summary
-------------------------------
Prefixes being announced by AfriNIC Region ASes: 1145
Total AfriNIC prefixes after maximum aggregation: 174
AfriNIC Deaggregation factor: 6.58
Prefixes being announced from the AfriNIC address blocks: 1144
Unique aggregates announced from the AfriNIC address blocks: 230
AfriNIC Region origin ASes present in the Internet Routing Table: 50
AfriNIC Prefixes per ASN: 22.88
AfriNIC Region origin ASes announcing only one prefix: 27
AfriNIC Region transit ASes present in the Internet Routing Table: 10
Average AfriNIC Region AS path length visible: 3.7
Max AfriNIC Region AS path length visible: 18
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 30
Number of AfriNIC addresses announced to Internet: 2349056
Equivalent to 0 /8s, 35 /16s and 216 /24s
AfriNIC AS Blocks 36864-37887, 327680-329727 & ERX transfers
AfriNIC Address Blocks 41/8, 102/8, 105/8, 154/8, 196/8, 197/8,
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
2907 639 2170 465 SINET-AS Research Organization of Informa
7497 452 180 24 CSTNET-AS-AP Computer Network Information
1237 197 74 146 KREONET-AS-KR KISTI, KR
4538 195 4192 73 ERX-CERNET-BKB China Education and Resear
58647 183 18 2 KAGAWAU-AS Kagawa University, JP
7575 174 297 117 AARNET-AS-AP Australian Academic and Rese
55824 147 19 21 NKN-CORE-NW NKN Core Network, IN
4762 75 4 1 MAHIDOL-BORDER-AS Mahidol University, Tha
4621 67 37 9 UNINET-AS-AP UNINET-, TH
1659 61 1466 35 ERX-TANET-ASN1 Taiwan Academic Network TA
Complete listing at https://bgp.nsrc.org/REN/CANARIE/data-ASnet-APNIC
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
668 211 631 179 DNIC-AS-00668, US
376 201 162 151 RISQ-AS, CA
5786 199 16 1 UPRENET, PR
2920 173 34 7 LACOE, US
2152 151 507 99 CENIC-2152, US
18558 139 18 4 NETBLK-RCOEK, US
81 129 519 34 NCREN, US
270 114 304 79 AS270, US
23024 99 7 17 OCDE, US
21976 90 34 16 NJEDGE-NET, US
Complete listing at https://bgp.nsrc.org/REN/CANARIE/data-ASnet-ARIN
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
680 284 1899 249 DFN Verein zur Foerderung eines Deutschen
786 196 1750 188 JANET Jisc Services Limited, GB
559 114 533 104 SWITCH Peering requests: peering at switch.c
8895 108 24 5 ISU Internet Services Unit ISU, SA
1103 98 1743 84 SURFNET-NL SURFnet, The Netherlands, NL
2614 90 26 70 ROEDUNET, RO
137 82 677 77 ASGARR Consortium GARR, IT
3267 80 29 70 NIKS, RU
1930 79 88 74 RCCN Fundacao para a Ciencia e a Tecnolog
553 75 366 75 BELWUE BelWue-Koordination, DE
Complete listing at https://bgp.nsrc.org/REN/CANARIE/data-ASnet-RIPE
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
1916 311 178 43 Rede Nacional de Ensino e Pesquisa, BR
28391 157 10 69 Universidad Juarez Autonoma de Tabasco, M
11340 110 25 52 Red Universitaria Nacional, CL
271640 67 8 1 UNIVERSIDADE FEDERAL DE VICOSA, BR
61468 52 3 21 CEDIA, EC
2715 51 100 35 Fundacao Carlos Chagas Filho de Amparo a
3596 51 8 4 Universidad Autonoma Metropolitana, MX
19611 48 17 2 Associacao Antonio Vieira - Unisinos, BR
28614 38 2 2 Fundacao Universidade Regional de Blumena
1251 37 31 26 FUNDACAO DE AMPARO A PESQUISA DO ESTADO S
Complete listing at https://bgp.nsrc.org/REN/CANARIE/data-ASnet-LACNIC
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
36914 539 82 3 KENET-AS, KE
2018 374 318 69 TENET-1, ZA
8094 47 48 18 PUKNET, ZA
37215 34 8 1 MAREN, MW
6879 24 2 9 ENSTINET-, EG
37661 13 8 5 NRaE1-AS, NG
30983 12 4 2 MARWAN-AS, MA
37501 11 49 6 UOFS, ZA
327700 10 16 1 MoRENet, MZ
37654 9 1 6 RwEdNet-AS, RW
Complete listing at https://bgp.nsrc.org/REN/CANARIE/data-ASnet-AFRINIC
Global Per AS prefix count summary
----------------------------------
ASN No of nets /20 equiv MaxAgg Description
2907 639 2170 465 SINET-AS Research Organization of Informa
36914 539 82 3 KENET-AS, KE
7497 452 180 24 CSTNET-AS-AP Computer Network Information
2018 374 318 69 TENET-1, ZA
1916 311 178 43 Rede Nacional de Ensino e Pesquisa, BR
680 284 1899 249 DFN Verein zur Foerderung eines Deutschen
668 211 631 179 DNIC-AS-00668, US
376 201 162 151 RISQ-AS, CA
5786 199 16 1 UPRENET, PR
1237 197 74 146 KREONET-AS-KR KISTI, KR
Complete listing at https://bgp.nsrc.org/REN/CANARIE/data-ASnet
Global Per AS Maximum Aggregation summary
-----------------------------------------
ASN No of nets Net Savings Description
36914 539 536 KENET-AS, KE
7497 452 428 CSTNET-AS-AP Computer Network Information Cente
2018 374 305 TENET-1, ZA
1916 311 268 Rede Nacional de Ensino e Pesquisa, BR
5786 199 198 UPRENET, PR
58647 183 181 KAGAWAU-AS Kagawa University, JP
2920 173 166 LACOE, US
18558 139 135 NETBLK-RCOEK, US
55824 147 126 NKN-CORE-NW NKN Core Network, IN
4538 195 122 ERX-CERNET-BKB China Education and Research Net
Complete listing at https://bgp.nsrc.org/REN/CANARIE/data-CIDRnet
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Net Originated Transit AS Transit AS Name
65208 PRIVATE 63.225.1.0/24 11570 AS11570, US
64532 PRIVATE 109.105.121.192/27 2603 NORDUNET, DK
64532 PRIVATE 109.105.121.224/30 2603 NORDUNET, DK
26971 UNALLOCATED 129.111.0.0/16 276 OTS-AS-276, US
65208 PRIVATE 206.206.156.0/22 11570 AS11570, US
65208 PRIVATE 216.161.32.0/23 11570 AS11570, US
Complete listing at https://bgp.nsrc.org/REN/CANARIE/data-badAS
Advertised Unallocated Addresses
--------------------------------
Unassigned Network ASN Information AS Name
164.160.192.0/21 Origin: 37661 NRaE1-AS, NG
164.160.192.0/21 Transit: 37288 WACREN, SN
202.14.117.0/24 Origin: 17827 STOU-AS-TH Sukhothai Thammathirat Open U
202.14.117.0/24 Transit: 4621 UNINET-AS-AP UNINET-, TH
203.9.156.0/24 Origin: 1851 ADELAIDE-UNIVERSITY-AS-AP The University
203.9.156.0/24 Transit: 7575 AARNET-AS-AP Australian Academic and Res
Complete listing at https://bgp.nsrc.org/REN/CANARIE/data-add-IANA
Number of prefixes announced per prefix length (Global)
-------------------------------------------------------
/1:0 /2:0 /3:0 /4:0 /5:0 /6:0
/7:0 /8:0 /9:1 /10:1 /11:1 /12:11
/13:19 /14:35 /15:115 /16:2014 /17:415 /18:463
/19:586 /20:867 /21:864 /22:1449 /23:1564 /24:10805
/25:60 /26:76 /27:36 /28:19 /29:21 /30:13
/31:3 /32:10
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
36914 515 539 KENET-AS, KE
8895 105 108 ISU Internet Services Unit ISU, SA
1916 75 311 Rede Nacional de Ensino e Pesquisa, BR
23024 38 99 OCDE, US
3267 36 80 NIKS, RU
32440 33 57 LONI, US
28614 32 38 Fundacao Universidade Regional de Blumenau, BR
46115 32 35 LUTHER, US
200521 32 57 SEAP-AGE, ES
25977 30 44 HCCS, US
Complete listing at https://bgp.nsrc.org/REN/CANARIE/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:2 5:15 6:4 8:2 12:2 14:93
23:10 24:3 31:1 35:9 37:8 38:11
40:1 41:222 42:18 44:4 45:47 46:4
47:1 49:12 50:4 52:1 58:15 59:20
60:6 61:3 62:8 63:37 64:44 65:5
66:57 67:41 68:10 69:16 70:2 71:1
72:8 74:55 76:35 77:10 78:3 79:9
80:13 81:24 82:6 83:8 84:5 85:51
86:5 87:1 89:10 91:41 92:2 93:14
94:2 95:2 96:5 97:1 98:2 101:3
102:12 103:362 104:79 107:2 108:8 109:5
111:21 113:1 114:24 116:9 117:61 118:34
119:30 121:28 122:8 123:8 124:42 125:5
128:57 129:40 130:97 131:65 132:66 133:157
134:110 136:200 137:51 138:59 139:11 140:33
141:3 142:27 143:26 144:28 145:2 146:137
147:57 148:199 149:11 150:69 151:11 152:138
153:15 154:46 155:84 156:130 157:27 158:29
159:117 160:34 161:16 162:25 163:64 164:11
165:48 167:30 168:103 169:7 170:27 171:2
172:2 173:5 175:16 177:6 179:10 180:16
181:1 182:12 184:3 185:50 186:3 187:24
188:14 189:3 190:17 191:13 192:1501 193:292
194:126 195:73 196:147 197:326 198:485 199:282
200:298 201:38 202:635 203:438 204:379 205:137
206:215 207:227 208:67 209:125 210:224 211:4
212:145 213:4 214:10 216:93 217:12 218:23
219:6 220:17 222:4 223:15
End of report
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