[REN-BGP-stats-all] IPv4 R&E Routing Table Report - Erdemnet (R&E) view
REN Routing Table Report
cscora at bgp.nsrc.org
Tue Feb 4 20:20:46 UTC 2025
IPv4 R&E Routing Table Report 20:20 GMT Tue 04 Feb, 2025
IPv4 BGP Table (R&E) as seen at Erdemnet.
Report Website: https://bgp.nsrc.org/REN
Detailed Analysis: https://bgp.nsrc.org/REN/Erdemnet/
Analysis Summary
----------------
BGP routing table entries examined: 20042
Prefixes after maximum aggregation (per Origin AS): 10806
Deaggregation factor: 1.85
Unique aggregates announced (without unneeded subnets): 12118
Number of IPv4 prefixes with a valid ROA: 7885
Number of IPv4 prefixes with an invalid ROA: 91
Number of IPv4 prefixes with no ROA: 12066
Total ASes present in the Internet Routing Table: 2848
Prefixes per ASN: 7.04
Origin-only ASes present in the Internet Routing Table: 2458
Origin ASes announcing only one prefix: 1105
Transit ASes present in the Internet Routing Table: 390
Transit-only ASes present in the Internet Routing Table: 74
Paths with bogon ASNs present in the IPv4 Routing Table: 4
Average AS path length visible in the Internet Routing Table: 6.8
Max AS path length visible: 27
Max AS path prepend of ASN (395156) 12
Prefixes from unregistered ASNs in the Routing Table: 5
Number of instances of unregistered ASNs: 5
Number of 32-bit ASNs allocated by the RIRs: 46096
Number of 32-bit ASNs visible in the Routing Table: 686
Prefixes from 32-bit ASNs in the Routing Table: 1822
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: 194951424
Equivalent to 11 /8s, 158 /16s and 185 /24s
Percentage of available address space announced: 5.3
Percentage of allocated address space announced: 5.3
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: 2501
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 5107
Total APNIC prefixes after maximum aggregation: 2366
APNIC Deaggregation factor: 2.16
Prefixes being announced from the APNIC address blocks: 5110
Unique aggregates announced from the APNIC address blocks: 2918
APNIC Region origin ASes present in the Internet Routing Table: 605
APNIC Prefixes per ASN: 8.45
APNIC Region origin ASes announcing only one prefix: 255
APNIC Region transit ASes present in the Internet Routing Table: 63
Average APNIC Region AS path length visible: 4.8
Max APNIC Region AS path length visible: 13
Number of APNIC region 32-bit ASNs visible in the Routing Table: 227
Number of APNIC addresses announced to Internet: 39813632
Equivalent to 2 /8s, 95 /16s and 130 /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: 8649
Total ARIN prefixes after maximum aggregation: 4841
ARIN Deaggregation factor: 1.79
Prefixes being announced from the ARIN address blocks: 8663
Unique aggregates announced from the ARIN address blocks: 5327
ARIN Region origin ASes present in the Internet Routing Table: 1286
ARIN Prefixes per ASN: 6.74
ARIN Region origin ASes announcing only one prefix: 461
ARIN Region transit ASes present in the Internet Routing Table: 161
Average ARIN Region AS path length visible: 7.9
Max ARIN Region AS path length visible: 19
Number of ARIN region 32-bit ASNs visible in the Routing Table: 210
Number of ARIN addresses announced to Internet: 89874688
Equivalent to 5 /8s, 91 /16s and 97 /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: 3627
Total RIPE prefixes after maximum aggregation: 2881
RIPE Deaggregation factor: 1.26
Prefixes being announced from the RIPE address blocks: 3614
Unique aggregates announced from the RIPE address blocks: 2937
RIPE Region origin ASes present in the Internet Routing Table: 668
RIPE Prefixes per ASN: 5.41
RIPE Region origin ASes announcing only one prefix: 299
RIPE Region transit ASes present in the Internet Routing Table: 110
Average RIPE Region AS path length visible: 6.2
Max RIPE Region AS path length visible: 15
Number of RIPE region 32-bit ASNs visible in the Routing Table: 154
Number of RIPE addresses announced to Internet: 58564608
Equivalent to 3 /8s, 125 /16s and 160 /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: 1474
Total LACNIC prefixes after maximum aggregation: 537
LACNIC Deaggregation factor: 2.74
Prefixes being announced from the LACNIC address blocks: 1472
Unique aggregates announced from the LACNIC address blocks: 707
LACNIC Region origin ASes present in the Internet Routing Table: 157
LACNIC Prefixes per ASN: 9.38
LACNIC Region origin ASes announcing only one prefix: 57
LACNIC Region transit ASes present in the Internet Routing Table: 23
Average LACNIC Region AS path length visible: 8.1
Max LACNIC Region AS path length visible: 17
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 64
Number of LACNIC addresses announced to Internet: 4187136
Equivalent to 0 /8s, 63 /16s and 228 /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: 1180
Total AfriNIC prefixes after maximum aggregation: 177
AfriNIC Deaggregation factor: 6.67
Prefixes being announced from the AfriNIC address blocks: 1179
Unique aggregates announced from the AfriNIC address blocks: 226
AfriNIC Region origin ASes present in the Internet Routing Table: 55
AfriNIC Prefixes per ASN: 21.44
AfriNIC Region origin ASes announcing only one prefix: 33
AfriNIC Region transit ASes present in the Internet Routing Table: 11
Average AfriNIC Region AS path length visible: 7.3
Max AfriNIC Region AS path length visible: 27
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 31
Number of AfriNIC addresses announced to Internet: 2508800
Equivalent to 0 /8s, 38 /16s and 72 /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 626 2202 463 SINET-AS Research Organization of Informa
7497 450 180 24 CSTNET-AS-AP Computer Network Information
1237 192 74 146 KREONET-AS-KR KISTI, KR
58647 183 18 2 KAGAWAU-AS Kagawa University, JP
7575 173 297 116 AARNET-AS-AP Australian Academic and Rese
55824 147 19 21 NKN-CORE-NW NKN Core Network, IN
4538 140 4192 71 ERX-CERNET-BKB China Education and Resear
17882 136 9 32 UNIVISION-AS-AP UNIVISION LLC, MN
4850 79 0 1 DIGICOM-AS-AP Digicom LLC, MN
9484 76 5 6 MOBINET-AS-MN Mobinet LLC. AS Mobinet Int
Complete listing at https://bgp.nsrc.org/REN/Erdemnet/data-ASnet-APNIC
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
2152 527 507 99 CENIC-2152, US
2920 226 44 49 LACOE, US
668 210 631 177 DNIC-AS-00668, US
376 202 162 151 RISQ-AS, CA
5786 198 16 1 UPRENET, PR
18558 140 18 5 NETBLK-RCOEK, US
81 129 519 34 NCREN, US
23024 97 7 17 OCDE, US
21976 90 34 16 NJEDGE-NET, US
237 79 541 48 MERIT-AS-14, US
Complete listing at https://bgp.nsrc.org/REN/Erdemnet/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
786 208 1767 183 JANET Jisc Services Limited, GB
559 114 533 104 SWITCH Peering requests: peering at switch.c
8895 110 24 5 ISU Internet Services Unit ISU, SA
1103 97 1743 84 SURFNET-NL SURFnet, The Netherlands, NL
2614 93 26 73 ROEDUNET, RO
137 80 676 76 ASGARR Consortium GARR, IT
1930 79 88 74 RCCN Fundacao para a Ciencia e a Tecnolog
553 78 462 78 BELWUE BelWue-Koordination, DE
3267 78 29 68 NIKS, RU
Complete listing at https://bgp.nsrc.org/REN/Erdemnet/data-ASnet-RIPE
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
1916 236 178 42 Rede Nacional de Ensino e Pesquisa, BR
28391 157 10 69 Universidad Juarez Autonoma de Tabasco, M
11340 109 25 52 Red Universitaria Nacional, CL
271640 67 8 1 UNIVERSIDADE FEDERAL DE VICOSA, BR
4270 53 16 1 Red de Interconexion Universitaria, AR
61468 52 5 17 CEDIA, EC
2715 49 99 35 Fundacao Carlos Chagas Filho de Amparo a
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/Erdemnet/data-ASnet-LACNIC
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
36914 550 82 3 KENET-AS, KE
2018 379 319 71 TENET-1, ZA
8094 47 48 18 PUKNET, ZA
37182 36 8 1 TERNET, TZ
37215 34 8 1 MAREN, MW
6879 24 2 9 ENSTINET-, EG
37661 12 8 4 NRaE1-AS, NG
37501 11 49 6 UOFS, ZA
327700 10 16 1 MoRENet, MZ
36982 8 33 8 UCT, ZA
Complete listing at https://bgp.nsrc.org/REN/Erdemnet/data-ASnet-AFRINIC
Global Per AS prefix count summary
----------------------------------
ASN No of nets /20 equiv MaxAgg Description
2907 626 2202 463 SINET-AS Research Organization of Informa
36914 550 82 3 KENET-AS, KE
2152 527 507 99 CENIC-2152, US
7497 450 180 24 CSTNET-AS-AP Computer Network Information
2018 379 319 71 TENET-1, ZA
680 284 1899 249 DFN Verein zur Foerderung eines Deutschen
1916 236 178 42 Rede Nacional de Ensino e Pesquisa, BR
2920 226 44 49 LACOE, US
668 210 631 177 DNIC-AS-00668, US
786 208 1767 183 JANET Jisc Services Limited, GB
Complete listing at https://bgp.nsrc.org/REN/Erdemnet/data-ASnet
Global Per AS Maximum Aggregation summary
-----------------------------------------
ASN No of nets Net Savings Description
36914 550 547 KENET-AS, KE
2152 527 428 CENIC-2152, US
7497 450 426 CSTNET-AS-AP Computer Network Information Cente
2018 379 308 TENET-1, ZA
5786 198 197 UPRENET, PR
1916 236 194 Rede Nacional de Ensino e Pesquisa, BR
58647 183 181 KAGAWAU-AS Kagawa University, JP
2920 226 177 LACOE, US
18558 140 135 NETBLK-RCOEK, US
55824 147 126 NKN-CORE-NW NKN Core Network, IN
Complete listing at https://bgp.nsrc.org/REN/Erdemnet/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
65101 PRIVATE 202.21.123.0/24 9484 MOBINET-AS-MN Mobinet L
65512 PRIVATE 202.126.89.0/24 55805 MOBICOM-AS-MN MobiCom C
65512 PRIVATE 202.126.90.0/24 55805 MOBICOM-AS-MN MobiCom C
65512 PRIVATE 202.126.91.0/24 55805 MOBICOM-AS-MN MobiCom C
Complete listing at https://bgp.nsrc.org/REN/Erdemnet/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/Erdemnet/data-add-IANA
Number of prefixes announced per prefix length (Global)
-------------------------------------------------------
!!Default route being announced!!
/1:0 /2:0 /3:0 /4:0 /5:0 /6:0
/7:0 /8:0 /9:1 /10:1 /11:0 /12:10
/13:16 /14:32 /15:114 /16:1964 /17:413 /18:459
/19:581 /20:870 /21:891 /22:1515 /23:1626 /24:11466
/25:0 /26:2 /27:2 /28:4 /29:2 /30:4
/31:1 /32:67
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
36914 526 550 KENET-AS, KE
8895 107 110 ISU Internet Services Unit ISU, SA
4850 78 79 DIGICOM-AS-AP Digicom LLC, MN
2152 62 527 CENIC-2152, US
23024 36 97 OCDE, US
17882 35 136 UNIVISION-AS-AP UNIVISION LLC, MN
37182 35 36 TERNET, TZ
3267 34 78 NIKS, RU
32440 33 58 LONI, US
28614 32 38 Fundacao Universidade Regional de Blumenau, BR
Complete listing at https://bgp.nsrc.org/REN/Erdemnet/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:2 5:15 6:4 8:2 12:1 14:93
23:8 24:3 27:4 31:1 35:1 36:2
37:8 38:11 40:1 41:255 42:11 43:8
44:4 45:51 46:4 47:1 49:7 50:4
52:1 59:23 60:6 61:3 62:8 63:36
64:49 65:5 66:88 67:40 68:13 69:18
70:2 71:1 72:8 74:55 76:38 77:10
78:3 79:10 80:14 81:25 82:7 83:7
84:8 85:51 86:5 87:1 89:10 91:41
92:2 93:14 94:2 95:2 96:5 97:1
98:2 102:13 103:367 104:80 107:2 108:8
109:5 111:21 112:16 113:1 114:24 116:9
117:61 118:33 119:30 121:27 122:24 123:8
124:43 125:5 128:59 129:37 130:97 131:66
132:64 133:156 134:109 136:198 137:98 138:58
139:9 140:33 141:3 142:41 143:25 144:27
145:2 146:135 147:60 148:199 149:13 150:70
151:11 152:132 153:14 154:45 155:64 156:130
157:27 158:30 159:117 160:34 161:17 162:24
163:65 164:11 165:49 167:26 168:119 169:7
170:103 171:1 172:2 173:6 175:16 177:6
179:12 180:16 181:1 182:11 184:3 185:49
186:3 187:22 188:15 189:3 190:34 191:13
192:1423 193:312 194:137 195:82 196:148 197:334
198:548 199:279 200:333 201:37 202:803 203:452
204:395 205:178 206:215 207:309 208:67 209:171
210:220 211:3 212:147 213:6 214:9 216:94
217:12 218:24 219:6 220:16 222:2 223:15
End of report
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