IPv4 R&E Routing Table Report 22:15 GMT Mon 25 May, 2026 IPv4 BGP Table (R&E) as seen at RedCLARA. Report Website: https://bgp.nsrc.org/REN Detailed Analysis: https://bgp.nsrc.org/REN/RedCLARA/ Analysis Summary ---------------- BGP routing table entries examined: 26960 Prefixes after maximum aggregation (per Origin AS): 13483 Deaggregation factor: 2.00 Unique aggregates announced (without unneeded subnets): 15600 Number of IPv4 prefixes with a valid ROA: 16944 Number of IPv4 prefixes with an invalid ROA: 15 Number of IPv4 prefixes with no ROA: 10001 Total ASes present in the Internet Routing Table: 2741 Prefixes per ASN: 9.84 Origin-only ASes present in the Internet Routing Table: 2383 Origin ASes announcing only one prefix: 1062 Transit ASes present in the Internet Routing Table: 358 Transit-only ASes present in the Internet Routing Table: 58 Paths with bogon ASNs present in the IPv4 Routing Table: 1 Average AS path length visible in the Internet Routing Table: 3.6 Max AS path length visible: 15 Max AS path prepend of ASN (395156) 12 Prefixes from unregistered ASNs in the Routing Table: 4 Number of instances of unregistered ASNs: 4 Number of 32-bit ASNs allocated by the RIRs: 49892 Number of 32-bit ASNs visible in the Routing Table: 720 Prefixes from 32-bit ASNs in the Routing Table: 5486 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: 4 Number of addresses announced to Internet: 248087425 Equivalent to 14 /8s, 201 /16s and 131 /24s Percentage of available address space announced: 6.7 Percentage of allocated address space announced: 6.7 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: 3697 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 4872 Total APNIC prefixes after maximum aggregation: 2363 APNIC Deaggregation factor: 2.06 Prefixes being announced from the APNIC address blocks: 4970 Unique aggregates announced from the APNIC address blocks: 2711 APNIC Region origin ASes present in the Internet Routing Table: 607 APNIC Prefixes per ASN: 8.19 APNIC Region origin ASes announcing only one prefix: 262 APNIC Region transit ASes present in the Internet Routing Table: 54 Average APNIC Region AS path length visible: 4.4 Max APNIC Region AS path length visible: 12 Number of APNIC region 32-bit ASNs visible in the Routing Table: 251 Number of APNIC addresses announced to Internet: 45640768 Equivalent to 2 /8s, 184 /16s and 108 /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: 16263 Total ARIN prefixes after maximum aggregation: 7771 ARIN Deaggregation factor: 2.09 Prefixes being announced from the ARIN address blocks: 15829 Unique aggregates announced from the ARIN address blocks: 8937 ARIN Region origin ASes present in the Internet Routing Table: 1306 ARIN Prefixes per ASN: 12.12 ARIN Region origin ASes announcing only one prefix: 463 ARIN Region transit ASes present in the Internet Routing Table: 157 Average ARIN Region AS path length visible: 3.4 Max ARIN Region AS path length visible: 15 Number of ARIN region 32-bit ASNs visible in the Routing Table: 238 Number of ARIN addresses announced to Internet: 138577408 Equivalent to 8 /8s, 66 /16s and 134 /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, 393216-404380 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: 3440 Total RIPE prefixes after maximum aggregation: 2742 RIPE Deaggregation factor: 1.25 Prefixes being announced from the RIPE address blocks: 3754 Unique aggregates announced from the RIPE address blocks: 3157 RIPE Region origin ASes present in the Internet Routing Table: 602 RIPE Prefixes per ASN: 6.24 RIPE Region origin ASes announcing only one prefix: 268 RIPE Region transit ASes present in the Internet Routing Table: 101 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: 155 Number of RIPE addresses announced to Internet: 57566849 Equivalent to 3 /8s, 110 /16s and 102 /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: 1160 Total LACNIC prefixes after maximum aggregation: 404 LACNIC Deaggregation factor: 2.87 Prefixes being announced from the LACNIC address blocks: 1172 Unique aggregates announced from the LACNIC address blocks: 500 LACNIC Region origin ASes present in the Internet Routing Table: 122 LACNIC Prefixes per ASN: 9.61 LACNIC Region origin ASes announcing only one prefix: 50 LACNIC Region transit ASes present in the Internet Routing Table: 21 Average LACNIC Region AS path length visible: 3.3 Max LACNIC Region AS path length visible: 8 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 56 Number of LACNIC addresses announced to Internet: 3844032 Equivalent to 0 /8s, 58 /16s and 167 /24s LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247, 61440-61951, 64099-64197, 262144-275868 + 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: 1221 Total AfriNIC prefixes after maximum aggregation: 199 AfriNIC Deaggregation factor: 6.14 Prefixes being announced from the AfriNIC address blocks: 1231 Unique aggregates announced from the AfriNIC address blocks: 291 AfriNIC Region origin ASes present in the Internet Routing Table: 42 AfriNIC Prefixes per ASN: 29.31 AfriNIC Region origin ASes announcing only one prefix: 19 AfriNIC Region transit ASes present in the Internet Routing Table: 11 Average AfriNIC Region AS path length visible: 2.9 Max AfriNIC Region AS path length visible: 8 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 20 Number of AfriNIC addresses announced to Internet: 2457088 Equivalent to 0 /8s, 37 /16s and 126 /24s AfriNIC AS Blocks 36864-37887, 327680-330751 & 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 667 2153 465 SINET-AS - for assignment to JPNIC member 7497 465 212 24 CSTNET-AS-AP - Computer Network Informati 1237 199 72 154 KREONET-AS-KR-KR - KISTI, KR 58647 182 18 2 KAGAWAU-AS - JPNIC-2Byte-ASBLOCK-AP, JP 4538 181 4191 71 ERX-CERNET-BKB - China Education and Rese 7575 166 281 113 AARNET-AS-AP - Australian Academic and Re 55824 152 19 20 AS55824-529 - National Knowledge Network, 4762 75 4 1 AS4762-155 - Mahidol University, Thailand 6262 63 134 56 CSIRO - Commonwealth Scientific and Indus 1659 61 1466 35 ERX-TANET-ASN1 - Taiwan Academic Network Complete listing at https://bgp.nsrc.org/REN/RedCLARA/data-ASnet-APNIC ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 396982 3353 4865 508 GOOGLE-CLOUD-PLATFORM - Google LLC, US 16509 2435 2161 1318 AMAZON-02 - Amazon.com, Inc., US 14618 1322 5162 999 AMAZON-AES - Amazon.com, Inc., US 15169 926 623 58 GOOGLE - Google LLC, US 5786 197 16 1 UPRENET - University of Puerto Rico, PR 376 196 146 150 RISQ-AS - Reseau d'Informations Scientifi 2920 173 34 7 LACOE - Los Angeles County Office of Educ 2152 145 491 95 CENIC-2152 - CENIC, US 18558 140 18 4 NETBLK-RCOEK - Riverside County Office of 81 115 455 35 NCREN - MCNC, US Complete listing at https://bgp.nsrc.org/REN/RedCLARA/data-ASnet-ARIN RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 680 291 1883 253 DFN - Verein zur Foerderung eines Deutsch 786 210 1684 192 JANET - Jisc Services Limited, GB 559 115 533 105 Switch - SWITCH, CH 1103 100 1759 85 SURFNET-NL - SURF B.V., NL 8895 98 24 5 ISU - King Abdul Aziz City for Science an 2614 87 26 67 RoEduNet - Agentia de Administrare a Rete 137 82 677 77 ASGARR - Consortium GARR, IT 1930 78 88 73 RCCN - Fundacao para a Ciencia e a Tecnol 553 75 366 75 BELWUE - Universitaet Stuttgart, DE 2200 64 630 59 FR-RENATER - Renater, FR Complete listing at https://bgp.nsrc.org/REN/RedCLARA/data-ASnet-RIPE LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 1916 308 161 43 AS1916 - Rede Nacional de Ensino e Pesqui 11340 110 25 49 AS11340 - Red Universitaria Nacional, CL 3596 69 8 4 AS3596 - Universidad Autonoma Metropolita 271640 65 8 1 AS271640 - UNIVERSIDADE FEDERAL DE VICOSA 2715 57 84 39 AS2715 - Fundacao Carlos Chagas Filho de 19611 53 17 2 AS19611 - Associacao Antonio Vieira - Uni 61468 51 3 20 AS61468 - CEDIA, EC 1251 37 31 26 AS1251 - FUNDACAO DE AMPARO A PESQUISA DO 21612 27 16 1 AS21612 - FUNDACAO INSTITUTO OSWALDO CRUZ 20191 26 16 1 AS20191 - Pontificia Universidad Catolica Complete listing at https://bgp.nsrc.org/REN/RedCLARA/data-ASnet-LACNIC AfriNIC Region per AS prefix count summary ------------------------------------------ ASN No of nets /20 equiv MaxAgg Description 36914 556 82 3 Kenya Education Network - Kenya Education 2018 374 318 69 TENET (The UNINET Project) - TENET (The U 2561 68 4 34 Egyptian Universities Network (EUN) - Egy 8094 46 48 21 North West University - North West Univer 37215 45 8 1 Malawi Research and Education Network - M 6879 24 2 9 ENSTINET - ENSTINET, EG 30983 12 4 2 CNRST (Centre National pour la Recherche 37501 11 49 6 University of the Free State - University 327700 11 16 1 Mozambique Research & Education Network - 37182 10 8 1 Tanzania Education And Research Network - Complete listing at https://bgp.nsrc.org/REN/RedCLARA/data-ASnet-AFRINIC Global Per AS prefix count summary ---------------------------------- ASN No of nets /20 equiv MaxAgg Description 396982 3353 4865 508 GOOGLE-CLOUD-PLATFORM - Google LLC, US 16509 2435 2161 1318 AMAZON-02 - Amazon.com, Inc., US 14618 1322 5162 999 AMAZON-AES - Amazon.com, Inc., US 15169 926 623 58 GOOGLE - Google LLC, US 2907 667 2153 465 SINET-AS - for assignment to JPNIC member 36914 556 82 3 Kenya Education Network - Kenya Education 7497 465 212 24 CSTNET-AS-AP - Computer Network Informati 2018 374 318 69 TENET (The UNINET Project) - TENET (The U 1916 308 161 43 AS1916 - Rede Nacional de Ensino e Pesqui 680 291 1883 253 DFN - Verein zur Foerderung eines Deutsch Complete listing at https://bgp.nsrc.org/REN/RedCLARA/data-ASnet Global Per AS Maximum Aggregation summary ----------------------------------------- ASN No of nets Net Savings Description 16509 2435 1117 AMAZON-02 - Amazon.com, Inc., US 15169 926 868 GOOGLE - Google LLC, US 36914 556 553 Kenya Education Network - Kenya Education Netwo 7497 465 441 CSTNET-AS-AP - Computer Network Information Cen 14618 1322 323 AMAZON-AES - Amazon.com, Inc., US 2018 374 305 TENET (The UNINET Project) - TENET (The UNINET 1916 308 265 AS1916 - Rede Nacional de Ensino e Pesquisa, BR 2907 667 202 SINET-AS - for assignment to JPNIC members, JP 5786 197 196 UPRENET - University of Puerto Rico, PR 58647 182 180 KAGAWAU-AS - JPNIC-2Byte-ASBLOCK-AP, JP Complete listing at https://bgp.nsrc.org/REN/RedCLARA/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 - University 64011 UNALLOCATED 130.215.0.0/16 10326 WPI - Worcester Polytec 64510 DOCUMENT 185.48.234.168/32 200999 pl-cloudferro - CloudFe 401367 UNALLOCATED 216.186.25.0/24 10430 WA-K20 - Washington Sta Complete listing at https://bgp.nsrc.org/REN/RedCLARA/data-badAS Advertised Unallocated Addresses -------------------------------- Unassigned Network ASN Information AS Name 103.177.50.0/23 Origin: 396982 GOOGLE-CLOUD-PLATFORM - Google LLC, US 103.177.50.0/23 Transit: 15169 GOOGLE - Google LLC, US 113.212.76.0/24 Origin: 396982 GOOGLE-CLOUD-PLATFORM - Google LLC, US 113.212.76.0/24 Transit: 15169 GOOGLE - Google LLC, US 202.14.117.0/24 Origin: 17827 AS17827-175 - Office of Info.Tech. Admin 202.14.117.0/24 Transit: 4621 AS4621-14 - Office of Info.Tech. Admin. 203.9.156.0/24 Origin: 1851 ADELAIDE-UNIVERSITY-AS-AP - Adelaide Uni 203.9.156.0/24 Transit: 7575 AARNET-AS-AP - Australian Academic and R Complete listing at https://bgp.nsrc.org/REN/RedCLARA/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 /11:5 /12:22 /13:39 /14:88 /15:171 /16:2075 /17:568 /18:560 /19:820 /20:2818 /21:1134 /22:1686 /23:1861 /24:14850 /25:64 /26:83 /27:44 /28:6 /29:4 /30:5 /31:0 /32:55 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 36914 532 556 Kenya Education Network - Kenya Education Network, KE 16509 432 2435 AMAZON-02 - Amazon.com, Inc., US 14618 380 1322 AMAZON-AES - Amazon.com, Inc., US 15169 280 926 GOOGLE - Google LLC, US 396982 278 3353 GOOGLE-CLOUD-PLATFORM - Google LLC, US 8895 95 98 ISU - King Abdul Aziz City for Science and Technology, SA 1916 88 308 AS1916 - Rede Nacional de Ensino e Pesquisa, BR 2907 59 667 SINET-AS - for assignment to JPNIC members, JP 31638 48 48 ASN-LEPIDA - Lepida S.c.p.A., IT 37215 39 45 Malawi Research and Education Network - MAREN - Malawi Research and Education Network - MAREN, MW Complete listing at https://bgp.nsrc.org/REN/RedCLARA/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:18 2:1 3:147 5:31 8:32 12:2 13:67 14:96 15:93 16:32 18:88 23:202 24:13 31:8 34:31 35:78 36:1 37:26 38:11 40:6 41:236 42:16 43:2 44:6 45:70 46:9 47:1 49:13 50:13 52:365 54:42 57:8 58:13 59:20 60:6 61:3 62:7 63:36 64:153 65:22 66:100 67:68 68:22 69:63 70:10 72:24 74:170 75:1 76:33 77:6 78:3 79:11 80:10 81:27 82:4 83:7 84:9 85:32 86:4 87:5 88:1 89:28 91:49 92:5 93:46 94:4 95:2 96:9 97:1 98:11 99:54 101:5 102:10 103:377 104:244 107:41 108:83 109:21 110:1 111:7 113:3 114:32 116:12 117:7 118:33 119:36 121:19 122:8 123:8 124:42 125:3 128:58 129:52 130:121 131:77 132:62 133:157 134:128 135:5 136:276 137:78 138:15 139:17 140:47 141:17 142:346 143:30 144:26 145:16 146:136 147:86 148:85 149:22 150:37 151:45 152:143 153:62 154:39 155:121 156:127 157:44 158:38 159:180 160:38 161:49 162:100 163:90 164:21 165:73 166:2 167:70 168:162 169:13 170:86 171:1 172:174 173:115 174:2 175:15 176:3 177:5 178:1 179:12 180:16 181:2 182:11 184:3 185:115 186:4 187:8 188:27 190:17 191:13 192:1656 193:329 194:115 195:101 196:149 197:343 198:536 199:353 200:317 201:6 202:624 203:437 204:426 205:158 206:229 207:262 208:134 209:173 210:233 211:15 212:145 213:16 216:226 217:26 218:21 219:7 220:16 222:4 223:17 End of report