[REN-BGP-stats-all] IPv4 R&E Routing Table Report - AARNET (Brisbane) (R&E) view
REN Routing Table Report
cscora at bgp.nsrc.org
Fri Mar 21 21:13:19 UTC 2025
IPv4 R&E Routing Table Report 21:05 GMT Fri 21 Mar, 2025
IPv4 BGP Table (R&E) as seen at AARNET (Brisbane).
Report Website: https://bgp.nsrc.org/REN
Detailed Analysis: https://bgp.nsrc.org/REN/AARNET-Brisbane/
Analysis Summary
----------------
BGP routing table entries examined: 19662
Prefixes after maximum aggregation (per Origin AS): 9565
Deaggregation factor: 2.06
Unique aggregates announced (without unneeded subnets): 1098
Number of IPv4 prefixes with a valid ROA: 7482
Number of IPv4 prefixes with an invalid ROA: 10
Number of IPv4 prefixes with no ROA: 12170
Total ASes present in the Internet Routing Table: 2765
Prefixes per ASN: 7.11
Origin-only ASes present in the Internet Routing Table: 2398
Origin ASes announcing only one prefix: 1066
Transit ASes present in the Internet Routing Table: 367
Transit-only ASes present in the Internet Routing Table: 67
Paths with bogon ASNs present in the IPv4 Routing Table: 25
Average AS path length visible in the Internet Routing Table: 4.0
Max AS path length visible: 21
Max AS path prepend of ASN (395156) 12
Prefixes from unregistered ASNs in the Routing Table: 1
Number of instances of unregistered ASNs: 1
Number of 32-bit ASNs allocated by the RIRs: 46125
Number of 32-bit ASNs visible in the Routing Table: 689
Prefixes from 32-bit ASNs in the Routing Table: 1831
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: 26960128
Equivalent to 1 /8s, 155 /16s and 97 /24s
Percentage of available address space announced: 0.7
Percentage of allocated address space announced: 0.7
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: 1809
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 5092
Total APNIC prefixes after maximum aggregation: 2159
APNIC Deaggregation factor: 2.36
Prefixes being announced from the APNIC address blocks: 5092
Unique aggregates announced from the APNIC address blocks: 55
APNIC Region origin ASes present in the Internet Routing Table: 581
APNIC Prefixes per ASN: 8.76
APNIC Region origin ASes announcing only one prefix: 237
APNIC Region transit ASes present in the Internet Routing Table: 49
Average APNIC Region AS path length visible: 3.5
Max APNIC Region AS path length visible: 11
Number of APNIC region 32-bit ASNs visible in the Routing Table: 230
Number of APNIC addresses announced to Internet: 4205312
Equivalent to 0 /8s, 64 /16s and 43 /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: 8558
Total ARIN prefixes after maximum aggregation: 4705
ARIN Deaggregation factor: 1.82
Prefixes being announced from the ARIN address blocks: 8567
Unique aggregates announced from the ARIN address blocks: 500
ARIN Region origin ASes present in the Internet Routing Table: 1276
ARIN Prefixes per ASN: 6.71
ARIN Region origin ASes announcing only one prefix: 452
ARIN Region transit ASes present in the Internet Routing Table: 165
Average ARIN Region AS path length visible: 4.0
Max ARIN Region AS path length visible: 15
Number of ARIN region 32-bit ASNs visible in the Routing Table: 220
Number of ARIN addresses announced to Internet: -1054406400
Equivalent to 193 /8s, 39 /16s and 9 /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: 3587
Total RIPE prefixes after maximum aggregation: 2075
RIPE Deaggregation factor: 1.73
Prefixes being announced from the RIPE address blocks: 3577
Unique aggregates announced from the RIPE address blocks: 511
RIPE Region origin ASes present in the Internet Routing Table: 652
RIPE Prefixes per ASN: 5.49
RIPE Region origin ASes announcing only one prefix: 289
RIPE Region transit ASes present in the Internet Routing Table: 102
Average RIPE Region AS path length visible: 3.8
Max RIPE Region AS path length visible: 13
Number of RIPE region 32-bit ASNs visible in the Routing Table: 148
Number of RIPE addresses announced to Internet: 3224576
Equivalent to 0 /8s, 49 /16s and 52 /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: 1281
Total LACNIC prefixes after maximum aggregation: 467
LACNIC Deaggregation factor: 2.74
Prefixes being announced from the LACNIC address blocks: 1281
Unique aggregates announced from the LACNIC address blocks: 16
LACNIC Region origin ASes present in the Internet Routing Table: 136
LACNIC Prefixes per ASN: 9.42
LACNIC Region origin ASes announcing only one prefix: 59
LACNIC Region transit ASes present in the Internet Routing Table: 23
Average LACNIC Region AS path length visible: 4.9
Max LACNIC Region AS path length visible: 10
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 60
Number of LACNIC addresses announced to Internet: 8448
Equivalent to 0 /8s, 0 /16s and 33 /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: 1143
Total AfriNIC prefixes after maximum aggregation: 158
AfriNIC Deaggregation factor: 7.23
Prefixes being announced from the AfriNIC address blocks: 1142
Unique aggregates announced from the AfriNIC address blocks: 16
AfriNIC Region origin ASes present in the Internet Routing Table: 52
AfriNIC Prefixes per ASN: 21.96
AfriNIC Region origin ASes announcing only one prefix: 29
AfriNIC Region transit ASes present in the Internet Routing Table: 10
Average AfriNIC Region AS path length visible: 4.6
Max AfriNIC Region AS path length visible: 21
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 31
Number of AfriNIC addresses announced to Internet: 1073928192
Equivalent to 64 /8s, 2 /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 623 524399 325 SINET-AS Research Organization of Inform
7497 452 262242 30 CSTNET-AS-AP Computer Network Informatio
4538 195 789723 51 ERX-CERNET-BKB China Education and Resea
1237 194 262194 173 KREONET-AS-KR KISTI, KR
7575 189 15 86 AARNET-AS-AP Australian Academic and Rese
58647 183 18 2 KAGAWAU-AS Kagawa University, JP
55824 147 524306 12 NKN-CORE-NW NKN Core Network, IN
10079 145 16 1 UNIWESTSYD-AS-AP University of Western Sy
4762 75 4 1 MAHIDOL-BORDER-AS Mahidol University, Tha
24313 70 16 1 NSW-DET-AS NSW Department of Education, A
Complete listing at https://bgp.nsrc.org/REN/AARNET-Brisbane/data-ASnet-APNIC
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
2152 534 786717 65 CENIC-2152, US
2920 226 786470 55 LACOE, US
668 212 786718 105 DNIC-AS-00668, US
376 201 786586 162 RISQ-AS, CA
5786 198 16 1 UPRENET, PR
18558 140 18 5 NETBLK-RCOEK, US
81 129 524806 34 NCREN, US
23024 99 524292 18 OCDE, US
21976 90 262176 19 NJEDGE-NET, US
237 85 786803 28 MERIT-AS-14, US
Complete listing at https://bgp.nsrc.org/REN/AARNET-Brisbane/data-ASnet-ARIN
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
680 284 140 36 DFN Verein zur Foerderung eines Deutschen
786 196 786924 45 JANET Jisc Services Limited, GB
559 114 262649 34 SWITCH Peering requests: peering at switch.
8895 108 262168 5 ISU Internet Services Unit ISU, SA
1103 98 787323 50 SURFNET-NL SURFnet, The Netherlands, NL
2614 90 262164 19 ROEDUNET, RO
137 82 262738 38 ASGARR Consortium GARR, IT
1930 79 262165 5 RCCN Fundacao para a Ciencia e a Tecnolo
3267 79 262166 42 NIKS, RU
553 75 524641 75 BELWUE BelWue-Koordination, DE
Complete listing at https://bgp.nsrc.org/REN/AARNET-Brisbane/data-ASnet-RIPE
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
1916 236 262301 48 Rede Nacional de Ensino e Pesquisa, BR
28391 157 262149 29 Universidad Juarez Autonoma de Tabasco,
11340 110 262146 8 Red Universitaria Nacional, CL
271640 67 0 67 UNIVERSIDADE FEDERAL DE VICOSA, BR
2715 52 262244 36 Fundacao Carlos Chagas Filho de Amparo a
61468 52 262144 4 CEDIA, EC
19611 48 16 13 Associacao Antonio Vieira - Unisinos, BR
28614 38 2 2 Fundacao Universidade Regional de Blumena
1251 37 524316 27 FUNDACAO DE AMPARO A PESQUISA DO ESTADO
3596 37 262150 3 Universidad Autonoma Metropolitana, MX
Complete listing at https://bgp.nsrc.org/REN/AARNET-Brisbane/data-ASnet-LACNIC
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
36914 543 82 3 KENET-AS, KE
2018 373 262448 71 TENET-1, ZA
8094 47 262150 4 PUKNET, ZA
37215 34 8 1 MAREN, MW
6879 24 2 9 ENSTINET-, EG
37661 13 262148 3 NRaE1-AS, NG
37501 11 49 6 UOFS, ZA
327700 10 16 1 MoRENet, MZ
37654 9 1 6 RwEdNet-AS, RW
36982 8 262160 3 UCT, ZA
Complete listing at https://bgp.nsrc.org/REN/AARNET-Brisbane/data-ASnet-AFRINIC
Global Per AS prefix count summary
----------------------------------
ASN No of nets /20 equiv MaxAgg Description
2907 623 524399 325 SINET-AS Research Organization of Inform
36914 543 82 3 KENET-AS, KE
2152 534 786717 65 CENIC-2152, US
7497 452 262242 30 CSTNET-AS-AP Computer Network Informatio
2018 373 262448 71 TENET-1, ZA
680 284 140 36 DFN Verein zur Foerderung eines Deutschen
1916 236 262301 48 Rede Nacional de Ensino e Pesquisa, BR
2920 226 786470 55 LACOE, US
668 212 786718 105 DNIC-AS-00668, US
376 201 786586 162 RISQ-AS, CA
Complete listing at https://bgp.nsrc.org/REN/AARNET-Brisbane/data-ASnet
Global Per AS Maximum Aggregation summary
-----------------------------------------
ASN No of nets Net Savings Description
36914 543 540 KENET-AS, KE
2152 534 469 CENIC-2152, US
7497 452 422 CSTNET-AS-AP Computer Network Information Cente
2018 373 302 TENET-1, ZA
680 284 248 DFN Verein zur Foerderung eines Deutschen Forsc
5786 198 197 UPRENET, PR
1916 236 188 Rede Nacional de Ensino e Pesquisa, BR
58647 183 181 KAGAWAU-AS Kagawa University, JP
2920 226 171 LACOE, US
786 196 151 JANET Jisc Services Limited, GB
Complete listing at https://bgp.nsrc.org/REN/AARNET-Brisbane/data-CIDRnet
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Net Originated Transit AS Transit AS Name
26971 UNALLOCATED 129.111.0.0/16 276 OTS-AS-276, US
Complete listing at https://bgp.nsrc.org/REN/AARNET-Brisbane/data-badAS
Advertised Unallocated Addresses
--------------------------------
Unassigned Network ASN Information AS Name
164.160.192.0/2 Origin: 37661 NRaE1-AS, NG
164.160.192.0/2 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/AARNET-Brisbane/data-add-IANA
Number of prefixes announced per prefix length (Global)
-------------------------------------------------------
/1:394 /2:4995 /3:0 /4:0 /5:0 /6:0
/7:0 /8:0 /9:1 /10:1 /11:1 /12:11
/13:19 /14:33 /15:115 /16:1986 /17:309 /18:339
/19:419 /20:611 /21:628 /22:1009 /23:1099 /24:7692
/25:0 /26:0 /27:0 /28:0 /29:0 /30:0
/31:0 /32:0
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
36914 375 543 KENET-AS, KE
8895 65 108 ISU Internet Services Unit ISU, SA
3267 35 79 NIKS, RU
23024 34 99 OCDE, US
28614 32 38 Fundacao Universidade Regional de Blumenau, BR
46115 32 35 LUTHER, US
32440 31 57 LONI, US
25977 30 44 HCCS, US
27609 29 45 USC-UNIVERSITY-HOSPITAL, US
2152 28 534 CENIC-2152, US
Complete listing at https://bgp.nsrc.org/REN/AARNET-Brisbane/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:2 5:15 6:4 8:2 12:2 14:93
23:8 24:3 31:1 35:15 37:8 38:11
40:1 41:225 42:18 44:4 45:41 46:4
47:1 49:8 50:2 52:1 58:15 59:20
60:6 61:3 62:6 63:32 64:42 65:5
66:42 67:39 68:11 69:16 70:2 71:1
72:8 74:51 76:34 77:10 78:3 79:9
80:13 81:24 82:6 83:8 84:6 85:51
86:5 87:1 89:10 91:40 92:2 93:14
94:2 95:2 96:5 97:1 98:2 101:3
102:3 103:225 104:43 108:8 109:2 111:16
113:1 114:24 116:9 117:61 118:1 119:30
121:23 123:8 124:42 125:5 128:51 129:21
130:54 131:38 132:27 133:157 134:94 136:87
137:117 138:65 139:13 140:14 141:2 142:19
143:15 144:21 146:124 147:30 148:86 149:6
150:52 151:7 152:137 153:14 154:45 155:66
156:129 157:26 158:7 159:44 160:27 161:11
162:15 163:35 164:6 165:5 167:24 168:46
169:3 170:14 171:2 172:1 173:5 175:11
177:7 179:8 180:16 182:10 185:29 186:2
187:18 188:12 189:3 190:16 191:13 192:977
193:220 194:107 195:56 196:146 197:183 198:281
199:168 200:188 201:34 202:533 203:246 204:228
205:83 206:125 207:205 208:37 209:123 210:153
211:3 212:67 213:3 214:10 216:51 217:4
218:3 219:2 220:13 222:1 223:15
End of report
More information about the ren-bgp-stats-all
mailing list