[REN-BGP-stats-all] IPv4 R&E Routing Table Report - ASREN (R&E) view
REN Routing Table Report
cscora at bgp.nsrc.org
Fri Sep 20 17:05:39 UTC 2024
IPv4 R&E Routing Table Report 17:05 GMT Fri 20 Sep, 2024
IPv4 BGP Table (R&E) as seen at ASREN.
Report Website: https://bgp.nsrc.org/REN
Detailed Analysis: https://bgp.nsrc.org/REN/ASREN/
Analysis Summary
----------------
BGP routing table entries examined: 13704
Prefixes after maximum aggregation (per Origin AS): 7907
Deaggregation factor: 1.73
Unique aggregates announced (without unneeded subnets): 8713
Number of IPv4 prefixes with a valid ROA: 5150
Number of IPv4 prefixes with an invalid ROA: 1
Number of IPv4 prefixes with no ROA: 8553
Total ASes present in the Internet Routing Table: 2035
Prefixes per ASN: 6.73
Origin-only ASes present in the Internet Routing Table: 1758
Origin ASes announcing only one prefix: 838
Transit ASes present in the Internet Routing Table: 277
Transit-only ASes present in the Internet Routing Table: 44
Paths with bogon ASNs present in the IPv4 Routing Table: 0
Average AS path length visible in the Internet Routing Table: 4.6
Max AS path length visible: 17
Max AS path prepend of ASN ( 30116) 10
Prefixes from unregistered ASNs in the Routing Table: 0
Number of instances of unregistered ASNs: 0
Number of 32-bit ASNs allocated by the RIRs: 45396
Number of 32-bit ASNs visible in the Routing Table: 500
Prefixes from 32-bit ASNs in the Routing Table: 1338
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: 2
Number of addresses announced to Internet: 161891424
Equivalent to 9 /8s, 166 /16s and 68 /24s
Percentage of available address space announced: 4.4
Percentage of allocated address space announced: 4.4
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: 1632
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 3240
Total APNIC prefixes after maximum aggregation: 1733
APNIC Deaggregation factor: 1.87
Prefixes being announced from the APNIC address blocks: 3239
Unique aggregates announced from the APNIC address blocks: 1906
APNIC Region origin ASes present in the Internet Routing Table: 429
APNIC Prefixes per ASN: 7.55
APNIC Region origin ASes announcing only one prefix: 202
APNIC Region transit ASes present in the Internet Routing Table: 44
Average APNIC Region AS path length visible: 4.1
Max APNIC Region AS path length visible: 12
Number of APNIC region 32-bit ASNs visible in the Routing Table: 174
Number of APNIC addresses announced to Internet: 37873216
Equivalent to 2 /8s, 65 /16s and 230 /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, 131072-153913
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: 5949
Total ARIN prefixes after maximum aggregation: 3326
ARIN Deaggregation factor: 1.79
Prefixes being announced from the ARIN address blocks: 5964
Unique aggregates announced from the ARIN address blocks: 3743
ARIN Region origin ASes present in the Internet Routing Table: 858
ARIN Prefixes per ASN: 6.95
ARIN Region origin ASes announcing only one prefix: 316
ARIN Region transit ASes present in the Internet Routing Table: 113
Average ARIN Region AS path length visible: 5.4
Max ARIN Region AS path length visible: 17
Number of ARIN region 32-bit ASNs visible in the Routing Table: 139
Number of ARIN addresses announced to Internet: 63423520
Equivalent to 3 /8s, 199 /16s and 196 /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, 47/8, 48/8, 50/8, 52/8, 53/8,
54/8, 55/8, 56/8, 57/8, 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: 2954
Total RIPE prefixes after maximum aggregation: 2461
RIPE Deaggregation factor: 1.20
Prefixes being announced from the RIPE address blocks: 2943
Unique aggregates announced from the RIPE address blocks: 2530
RIPE Region origin ASes present in the Internet Routing Table: 569
RIPE Prefixes per ASN: 5.17
RIPE Region origin ASes announcing only one prefix: 261
RIPE Region transit ASes present in the Internet Routing Table: 86
Average RIPE Region AS path length visible: 3.7
Max RIPE Region AS path length visible: 13
Number of RIPE region 32-bit ASNs visible in the Routing Table: 133
Number of RIPE addresses announced to Internet: 57036160
Equivalent to 3 /8s, 102 /16s and 77 /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,
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: 887
Total LACNIC prefixes after maximum aggregation: 338
LACNIC Deaggregation factor: 2.62
Prefixes being announced from the LACNIC address blocks: 883
Unique aggregates announced from the LACNIC address blocks: 469
LACNIC Region origin ASes present in the Internet Routing Table: 107
LACNIC Prefixes per ASN: 8.25
LACNIC Region origin ASes announcing only one prefix: 40
LACNIC Region transit ASes present in the Internet Routing Table: 14
Average LACNIC Region AS path length visible: 4.9
Max LACNIC Region AS path length visible: 14
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 38
Number of LACNIC addresses announced to Internet: 2902656
Equivalent to 0 /8s, 44 /16s and 74 /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: 674
Total AfriNIC prefixes after maximum aggregation: 49
AfriNIC Deaggregation factor: 13.76
Prefixes being announced from the AfriNIC address blocks: 673
Unique aggregates announced from the AfriNIC address blocks: 63
AfriNIC Region origin ASes present in the Internet Routing Table: 28
AfriNIC Prefixes per ASN: 24.04
AfriNIC Region origin ASes announcing only one prefix: 19
AfriNIC Region transit ASes present in the Internet Routing Table: 7
Average AfriNIC Region AS path length visible: 4.0
Max AfriNIC Region AS path length visible: 12
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 16
Number of AfriNIC addresses announced to Internet: 653568
Equivalent to 0 /8s, 9 /16s and 249 /24s
AfriNIC AS Blocks 36864-37887, 327680-329727 & ERX transfers
AfriNIC Address Blocks 41/8, 45/8, 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 593 2169 465 SINET-AS Research Organization of Informa
7497 451 212 25 CSTNET-AS-AP Computer Network Information
58647 180 18 2 KAGAWAU-AS Kagawa University, JP
7575 172 329 115 AARNET-AS-AP Australian Academic and Rese
55824 133 19 20 NKN-CORE-NW NKN Core Network, IN
4538 125 4192 72 ERX-CERNET-BKB China Education and Resear
2697 58 4 34 ERX-ERNET-AS Education and Research Netwo
45773 47 3 5 HECPERN-AS-PK PERN AS Content Servie Prov
132524 44 9 11 TIFR-AS Tata Institute of Fundamental Res
24361 33 56 17 CNGI-NJ-IX-AS-AP CERNET2 IX at Southeast
Complete listing at https://bgp.nsrc.org/REN/ASREN/data-ASnet-APNIC
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
2152 469 507 97 CENIC-2152, US
2920 224 44 45 LACOE, US
376 199 162 148 RISQ-AS, CA
5786 197 16 1 UPRENET, PR
18558 140 18 4 NETBLK-RCOEK, US
270 129 332 91 AS270, US
23024 95 7 21 OCDE, US
21976 87 50 17 NJEDGE-NET, US
237 85 541 50 MERIT-AS-14, US
1736 79 16 1 MU-AS, US
Complete listing at https://bgp.nsrc.org/REN/ASREN/data-ASnet-ARIN
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
680 282 1899 249 DFN Verein zur Foerderung eines Deutschen
786 185 1767 182 JANET Jisc Services Limited, GB
559 114 533 104 SWITCH Peering requests: peering at switch.c
1103 97 2015 84 SURFNET-NL SURFnet, The Netherlands, NL
2614 90 26 70 ROEDUNET, RO
137 82 677 77 ASGARR Consortium GARR, IT
1930 79 88 74 RCCN Fundacao para a Ciencia e a Tecnolog
2200 63 598 58 FR-RENATER Reseau National de telecommuni
200521 55 4 21 SEAP-AGE, ES
1653 53 150 50 SUNET SUNET Swedish University Network, E
Complete listing at https://bgp.nsrc.org/REN/ASREN/data-ASnet-RIPE
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
1916 216 163 39 Rede Nacional de Ensino e Pesquisa, BR
11340 109 25 52 Red Universitaria Nacional, CL
271640 66 4 27 UNIVERSIDADE FEDERAL DE VICOSA, BR
4270 44 16 1 Red de Interconexion Universitaria, AR
2715 43 67 32 Fundacao Carlos Chagas Filho de Amparo a
20191 28 16 1 Pontificia Universidad Catolica de Chile,
21612 24 16 1 FUNDACAO INSTITUTO OSWALDO CRUZ, BR
3597 19 16 2 Fundacion InnovaT, AR
27790 18 2 2 Universidad Nacional de Cordoba, AR
28609 17 1 2 Instituto Nupef, BR
Complete listing at https://bgp.nsrc.org/REN/ASREN/data-ASnet-LACNIC
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
36914 522 82 3 KENET-AS, KE
327700 50 16 1 MoRENet, MZ
37215 32 8 1 MAREN, MW
6879 24 2 9 ENSTINET-, EG
37661 12 8 4 NRaE1-AS, NG
37654 6 1 6 RwEdNet-AS, RW
327947 4 4 1 KNUST-, GH
37074 3 0 3 UG-AS, GH
37532 2 20 2 ZAMREN, ZM
3208 1 2 1 ARN, DZ
Complete listing at https://bgp.nsrc.org/REN/ASREN/data-ASnet-AFRINIC
Global Per AS prefix count summary
----------------------------------
ASN No of nets /20 equiv MaxAgg Description
2907 593 2169 465 SINET-AS Research Organization of Informa
36914 522 82 3 KENET-AS, KE
2152 469 507 97 CENIC-2152, US
7497 451 212 25 CSTNET-AS-AP Computer Network Information
680 282 1899 249 DFN Verein zur Foerderung eines Deutschen
2920 224 44 45 LACOE, US
1916 216 163 39 Rede Nacional de Ensino e Pesquisa, BR
376 199 162 148 RISQ-AS, CA
5786 197 16 1 UPRENET, PR
786 185 1767 182 JANET Jisc Services Limited, GB
Complete listing at https://bgp.nsrc.org/REN/ASREN/data-ASnet
Global Per AS Maximum Aggregation summary
-----------------------------------------
ASN No of nets Net Savings Description
36914 522 519 KENET-AS, KE
7497 451 426 CSTNET-AS-AP Computer Network Information Cente
2152 469 372 CENIC-2152, US
5786 197 196 UPRENET, PR
2920 224 179 LACOE, US
58647 180 178 KAGAWAU-AS Kagawa University, JP
1916 216 177 Rede Nacional de Ensino e Pesquisa, BR
18558 140 136 NETBLK-RCOEK, US
55824 133 113 NKN-CORE-NW NKN Core Network, IN
1736 79 78 MU-AS, US
Complete listing at https://bgp.nsrc.org/REN/ASREN/data-CIDRnet
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
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/ASREN/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 /12:9
/13:16 /14:33 /15:97 /16:1563 /17:285 /18:294
/19:407 /20:569 /21:620 /22:1032 /23:1135 /24:7535
/25:31 /26:50 /27:25 /28:0 /29:0 /30:0
/31:0 /32:0
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
36914 501 522 KENET-AS, KE
2152 57 469 CENIC-2152, US
1916 47 216 Rede Nacional de Ensino e Pesquisa, BR
327700 44 50 MoRENet, MZ
23024 37 95 OCDE, US
200521 32 55 SEAP-AGE, ES
25977 27 39 HCCS, US
37215 26 32 MAREN, MW
26898 24 32 LNOCA-ORG, US
31638 20 20 ASN-LEPIDA, IT
Complete listing at https://bgp.nsrc.org/REN/ASREN/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:1 5:15 8:2 12:1 14:92 23:2
24:3 31:1 35:3 37:8 38:3 41:249
42:6 44:4 45:27 46:4 47:1 49:5
50:1 58:1 59:8 60:6 61:2 62:5
63:3 64:21 65:1 66:17 67:33 68:2
69:9 70:2 72:7 74:19 76:7 77:3
78:3 79:10 80:6 81:24 82:2 83:6
84:6 85:25 86:1 87:1 89:11 91:37
93:13 94:2 95:2 96:5 98:2 101:1
102:5 103:224 104:68 108:2 109:1 111:16
114:1 116:7 118:18 119:25 121:27 122:8
123:8 124:43 128:28 129:25 130:82 131:50
132:15 133:154 134:75 136:195 137:70 138:57
139:5 140:17 141:3 142:17 143:16 144:23
145:2 146:120 147:19 148:8 149:13 150:9
151:3 152:107 153:7 154:13 155:26 156:134
157:24 158:30 159:116 160:29 161:11 162:17
163:56 164:14 165:8 167:9 168:27 169:6
170:69 172:1 173:6 175:6 177:3 179:6
180:15 182:1 184:6 185:41 186:2 187:4
188:11 189:3 190:2 191:2 192:1153 193:226
194:85 195:61 196:9 197:315 198:404 199:184
200:237 201:17 202:374 203:202 204:342 205:124
206:146 207:259 208:45 209:126 210:98 211:1
212:41 213:4 216:46 217:9 219:5 220:4
222:1 223:15
End of report
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