[REN-BGP-stats-all] IPv4 R&E Routing Table Report - ASREN (R&E) view
REN Routing Table Report
cscora at frr.nsrc.org
Mon Jan 24 17:05:29 UTC 2022
IPv4 R&E Routing Table Report 17:05 GMT Mon 24 Jan, 2022
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: 14210
Prefixes after maximum aggregation (per Origin AS): 8397
Deaggregation factor: 1.69
Unique aggregates announced (without unneeded subnets): 9234
Number of IPv4 prefixes with a valid ROA: 3218
Number of IPv4 prefixes with an invalid ROA: 0
Number of IPv4 prefixes with no ROA: 10992
Total ASes present in the Internet Routing Table: 2161
Prefixes per ASN: 6.58
Origin-only ASes present in the Internet Routing Table: 1868
Origin ASes announcing only one prefix: 895
Transit ASes present in the Internet Routing Table: 293
Transit-only ASes present in the Internet Routing Table: 33
Average AS path length visible in the Internet Routing Table: 4.4
Max AS path length visible: 14
Max AS path prepend of ASN ( 5474) 11
Prefixes from unregistered ASNs in the Routing Table: 32
Number of instances of unregistered ASNs: 32
Number of 32-bit ASNs allocated by the RIRs: 38382
Number of 32-bit ASNs visible in the Routing Table: 497
Prefixes from 32-bit ASNs in the Routing Table: 1351
Number of bogon 32-bit ASNs visible in the Routing Table: 0
Special use prefixes present in the Routing Table: 1
Prefixes being announced from unallocated address space: 1
Number of addresses announced to Internet: 169171136
Equivalent to 10 /8s, 21 /16s and 88 /24s
Percentage of available address space announced: 4.6
Percentage of allocated address space announced: 4.6
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 99.5
Total number of prefixes smaller than registry allocations: 1569
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 3682
Total APNIC prefixes after maximum aggregation: 1996
APNIC Deaggregation factor: 1.84
Prefixes being announced from the APNIC address blocks: 3683
Unique aggregates announced from the APNIC address blocks: 2162
APNIC Region origin ASes present in the Internet Routing Table: 453
APNIC Prefixes per ASN: 8.13
APNIC Region origin ASes announcing only one prefix: 203
APNIC Region transit ASes present in the Internet Routing Table: 48
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: 175
Number of APNIC addresses announced to Internet: 38906176
Equivalent to 2 /8s, 81 /16s and 169 /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, 131072-151865
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: 5452
Total ARIN prefixes after maximum aggregation: 3245
ARIN Deaggregation factor: 1.68
Prefixes being announced from the ARIN address blocks: 5462
Unique aggregates announced from the ARIN address blocks: 3658
ARIN Region origin ASes present in the Internet Routing Table: 849
ARIN Prefixes per ASN: 6.43
ARIN Region origin ASes announcing only one prefix: 308
ARIN Region transit ASes present in the Internet Routing Table: 112
Average ARIN Region AS path length visible: 5.0
Max ARIN Region AS path length visible: 14
Number of ARIN region 32-bit ASNs visible in the Routing Table: 113
Number of ARIN addresses announced to Internet: 68448448
Equivalent to 4 /8s, 20 /16s and 112 /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, 393216-401308
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: 3154
Total RIPE prefixes after maximum aggregation: 2532
RIPE Deaggregation factor: 1.25
Prefixes being announced from the RIPE address blocks: 3146
Unique aggregates announced from the RIPE address blocks: 2625
RIPE Region origin ASes present in the Internet Routing Table: 624
RIPE Prefixes per ASN: 5.04
RIPE Region origin ASes announcing only one prefix: 301
RIPE Region transit ASes present in the Internet Routing Table: 94
Average RIPE Region AS path length visible: 3.7
Max RIPE Region AS path length visible: 14
Number of RIPE region 32-bit ASNs visible in the Routing Table: 124
Number of RIPE addresses announced to Internet: 55613664
Equivalent to 3 /8s, 80 /16s and 152 /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
196608-213403
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: 1025
Total LACNIC prefixes after maximum aggregation: 420
LACNIC Deaggregation factor: 2.44
Prefixes being announced from the LACNIC address blocks: 1023
Unique aggregates announced from the LACNIC address blocks: 489
LACNIC Region origin ASes present in the Internet Routing Table: 143
LACNIC Prefixes per ASN: 7.15
LACNIC Region origin ASes announcing only one prefix: 60
LACNIC Region transit ASes present in the Internet Routing Table: 22
Average LACNIC Region AS path length visible: 5.0
Max LACNIC Region AS path length visible: 13
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 59
Number of LACNIC addresses announced to Internet: 3500512
Equivalent to 0 /8s, 53 /16s and 105 /24s
LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247,
61440-61951, 64099-64197, 262144-273820 + 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: 865
Total AfriNIC prefixes after maximum aggregation: 183
AfriNIC Deaggregation factor: 4.73
Prefixes being announced from the AfriNIC address blocks: 895
Unique aggregates announced from the AfriNIC address blocks: 299
AfriNIC Region origin ASes present in the Internet Routing Table: 50
AfriNIC Prefixes per ASN: 17.90
AfriNIC Region origin ASes announcing only one prefix: 23
AfriNIC Region transit ASes present in the Internet Routing Table: 12
Average AfriNIC Region AS path length visible: 3.8
Max AfriNIC Region AS path length visible: 7
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 26
Number of AfriNIC addresses announced to Internet: 2702080
Equivalent to 0 /8s, 41 /16s and 59 /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 576 2156 457 SINET-AS Research Organization of Infor
7497 426 177 19 CSTNET-AS-AP Computer Network Informati
1237 189 74 135 KREONET-AS-KR KISTI, KR
58647 178 18 2 KAGAWAU-AS Kagawa University, JP
7575 176 330 123 AARNET-AS-AP Australian Academic and Re
4538 175 4192 72 ERX-CERNET-BKB China Education and Rese
55824 129 19 22 NKN-CORE-NW NKN Core Network, IN
2697 54 3 32 ERX-ERNET-AS Education and Research Net
132524 49 9 11 TIFR-AS Tata Institute of Fundamental R
45773 47 3 5 HECPERN-AS-PK PERN AS Content Servie Pr
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
376 201 162 150 RISQ-AS, CA
5786 200 16 1 UPRENET, PR
2152 144 507 86 CSUNET-NW, US
18558 136 18 4 NETBLK-RCOEK, US
270 119 329 88 AS270, US
2920 111 34 6 LACOE, US
21976 85 51 18 NJEDGE-NET, US
1736 80 16 1 MU-AS, US
3477 70 71 40 NOAA-NWAVE, US
22742 69 53 34 CT-EDU-NET, 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
680 279 1950 245 DFN Verein zur Foerderung eines Deutsch
786 186 1774 183 JANET Jisc Services Limited, GB
8895 182 24 4 ISU Internet Services Unit ISU, SA
559 115 550 106 SWITCH Peering requests: peering at switch
1103 98 1520 85 SURFNET-NL SURFnet, The Netherlands, NL
137 82 677 77 ASGARR Consortium GARR, IT
2200 67 647 61 FR-RENATER Reseau National de telecommu
2614 58 32 55 ROEDUNET, RO
1930 57 81 52 RCCN Fundacao para a Ciencia e a Tecnol
1653 53 167 50 SUNET SUNET Swedish University Network,
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 198 203 43 Rede Nacional de Ensino e Pesquisa, BR
11340 95 24 55 Red Universitaria Nacional, CL
1251 65 37 20 FUNDACAO DE AMPARO A PESQUISA DO ESTADO
4270 44 16 1 Red de Interconexion Universitaria, AR
61468 41 3 15 CEDIA, EC
28571 37 26 15 UNIVERSIDADE DE SAO PAULO, BR
20191 31 16 1 Pontificia Universidad Catolica de Chil
271640 27 8 1 UNIVERSIDADE FEDERAL DE VICOSA, BR
3597 23 2 17 Fundacion InnovaT, AR
28068 21 2 2 Universidad Nacional de San Luis, AR
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
2018 320 251 66 TENET-1, ZA
36914 203 82 3 KENET-AS, KE
2561 72 5 31 EUN, EG
8094 50 48 4 PUKNET, ZA
327700 40 16 1 MoRENet, MZ
327687 37 28 3 RENU, UG
6879 24 2 9 ENSTINET-, EG
37182 11 8 1 TERNET, TZ
37501 11 49 6 UOFS, ZA
37074 10 7 7 UG-AS, GH
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 576 2156 457 SINET-AS Research Organization of Infor
7497 426 177 19 CSTNET-AS-AP Computer Network Informati
2018 320 251 66 TENET-1, ZA
680 279 1950 245 DFN Verein zur Foerderung eines Deutsch
36914 203 82 3 KENET-AS, KE
376 201 162 150 RISQ-AS, CA
5786 200 16 1 UPRENET, PR
1916 198 203 43 Rede Nacional de Ensino e Pesquisa, BR
1237 189 74 135 KREONET-AS-KR KISTI, KR
786 186 1774 183 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
7497 426 407 CSTNET-AS-AP Computer Network Information Cente
2018 320 254 TENET-1, ZA
36914 203 200 KENET-AS, KE
5786 200 199 UPRENET, PR
8895 182 178 ISU Internet Services Unit ISU, SA
58647 178 176 KAGAWAU-AS Kagawa University, JP
1916 198 155 Rede Nacional de Ensino e Pesquisa, BR
18558 136 132 NETBLK-RCOEK, US
55824 129 107 NKN-CORE-NW NKN Core Network, IN
2920 111 105 LACOE, US
Complete listing at https://bgp.nsrc.org/REN/ASREN/data-CIDRnet
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Net Originated Transit AS Transit AS Name
65254 PRIVATE 137.215.0.0/16 2018 TENET-1, ZA
65254 PRIVATE 137.215.0.0/17 2018 TENET-1, ZA
65254 PRIVATE 137.215.128.0/17 2018 TENET-1, ZA
65530 PRIVATE 146.141.0.0/16 2018 TENET-1, ZA
64786 PRIVATE 146.232.0.0/17 2018 TENET-1, ZA
64786 PRIVATE 146.232.128.0/17 2018 TENET-1, ZA
22063 UNALLOCATED 153.10.0.0/16 2152 CSUNET-NW, US
65102 PRIVATE 154.114.10.0/23 2018 TENET-1, ZA
65102 PRIVATE 154.114.37.0/24 2018 TENET-1, ZA
65100 PRIVATE 154.115.0.0/21 2018 TENET-1, ZA
Complete listing at https://bgp.nsrc.org/REN/ASREN/data-badAS
Prefixes from the Special Purpose Address Registry (Global)
-----------------------------------------------------------
Prefix Origin AS Description
192.88.99.0/24 1103 SURFNET-NL SURFnet, The Netherlands, NL
Complete listing at https://bgp.nsrc.org/REN/ASREN/data-spar
Advertised Unallocated Addresses
--------------------------------
Unassigned Network ASN Information AS Name
192.88.99.0/24 Origin: 1103 SURFNET-NL SURFnet, The Netherlands, NL
192.88.99.0/24 Transit: 20965 GEANT The GEANT IP Service, NL
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 /10:2 /11:0 /12:9
/13:16 /14:33 /15:102 /16:1628 /17:289 /18:308
/19:446 /20:648 /21:725 /22:1127 /23:1202 /24:7493
/25:70 /26:55 /27:56 /28:0 /29:0 /30:0
/31:0 /32:0
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
36914 190 203 KENET-AS, KE
8895 177 182 ISU Internet Services Unit ISU, SA
23024 53 56 OCDE, US
327700 38 40 MoRENet, MZ
25977 29 32 HCCS, US
200521 29 49 SEAP-AGE, ES
1916 26 198 Rede Nacional de Ensino e Pesquisa, BR
30220 25 25 SWTELCOOP, US
31638 21 21 ASN-LEPIDA, IT
2614 20 58 ROEDUNET, RO
Complete listing at https://bgp.nsrc.org/REN/ASREN/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:2 5:15 8:2 12:1 14:85 23:2
24:3 31:1 37:6 38:3 40:1 41:124
42:9 44:4 45:30 46:6 49:8 58:7
59:3 60:4 61:2 62:6 63:4 64:12
66:23 67:34 68:1 69:16 72:10 74:8
76:6 77:7 78:3 79:10 80:10 81:27
82:2 83:6 84:3 85:26 86:7 87:1
88:1 89:10 91:44 93:18 94:2 95:4
96:5 101:4 102:12 103:226 104:5 106:1
108:3 109:10 110:3 111:16 112:4 114:17
116:5 117:2 119:21 121:27 124:39 125:1
128:68 129:34 130:84 131:77 132:50 133:140
134:90 136:191 137:48 138:8 139:4 140:33
141:2 142:22 143:30 144:25 145:2 146:123
147:25 148:7 149:13 150:16 151:6 152:21
153:6 154:25 155:46 156:67 157:26 158:39
159:115 160:25 161:16 162:10 163:60 164:36
165:17 166:1 167:11 168:80 169:8 170:42
172:1 173:1 175:19 176:8 177:8 178:1
179:8 180:20 182:6 184:2 185:35 186:3
187:1 188:13 189:2 190:41 191:1 192:1165
193:218 194:107 195:84 196:149 197:115 198:358
199:190 200:217 201:23 202:352 203:284 204:283
205:132 206:145 207:136 208:47 209:95 210:177
211:1 212:172 213:3 216:51 217:14 218:5
219:11 220:12 222:5 223:3
End of report
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