IPv4 R&E Routing Table Report 17:00 GMT Mon 13 Mar, 2023 IPv4 BGP Table (R&E) as seen at GEANT. Report Website: https://bgp.nsrc.org/REN Detailed Analysis: https://bgp.nsrc.org/REN/GEANT/ Analysis Summary ---------------- BGP routing table entries examined: 19088 Prefixes after maximum aggregation (per Origin AS): 10769 Deaggregation factor: 1.77 Unique aggregates announced (without unneeded subnets): 12044 Number of IPv4 prefixes with a valid ROA: 4601 Number of IPv4 prefixes with an invalid ROA: 16 Number of IPv4 prefixes with no ROA: 14471 Total ASes present in the Internet Routing Table: 2803 Prefixes per ASN: 6.81 Origin-only ASes present in the Internet Routing Table: 2431 Origin ASes announcing only one prefix: 1076 Transit ASes present in the Internet Routing Table: 372 Transit-only ASes present in the Internet Routing Table: 59 Paths with bogon ASNs present in the IPv4 Routing Table: 0 Average AS path length visible in the Internet Routing Table: 3.8 Max AS path length visible: 19 Max AS path prepend of ASN (395156) 12 Prefixes from unregistered ASNs in the Routing Table: 11 Number of instances of unregistered ASNs: 11 Number of 32-bit ASNs allocated by the RIRs: 41429 Number of 32-bit ASNs visible in the Routing Table: 653 Prefixes from 32-bit ASNs in the Routing Table: 1825 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: 206462630 Equivalent to 12 /8s, 78 /16s and 94 /24s Percentage of available address space announced: 5.6 Percentage of allocated address space announced: 5.6 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: 2304 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 4774 Total APNIC prefixes after maximum aggregation: 2305 APNIC Deaggregation factor: 2.07 Prefixes being announced from the APNIC address blocks: 4775 Unique aggregates announced from the APNIC address blocks: 2635 APNIC Region origin ASes present in the Internet Routing Table: 579 APNIC Prefixes per ASN: 8.25 APNIC Region origin ASes announcing only one prefix: 249 APNIC Region transit ASes present in the Internet Routing Table: 59 Average APNIC Region AS path length visible: 3.6 Max APNIC Region AS path length visible: 14 Number of APNIC region 32-bit ASNs visible in the Routing Table: 226 Number of APNIC addresses announced to Internet: 45873984 Equivalent to 2 /8s, 187 /16s and 251 /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: 8221 Total ARIN prefixes after maximum aggregation: 4798 ARIN Deaggregation factor: 1.71 Prefixes being announced from the ARIN address blocks: 8237 Unique aggregates announced from the ARIN address blocks: 5405 ARIN Region origin ASes present in the Internet Routing Table: 1252 ARIN Prefixes per ASN: 6.58 ARIN Region origin ASes announcing only one prefix: 435 ARIN Region transit ASes present in the Internet Routing Table: 159 Average ARIN Region AS path length visible: 4.3 Max ARIN Region AS path length visible: 19 Number of ARIN region 32-bit ASNs visible in the Routing Table: 191 Number of ARIN addresses announced to Internet: 95918720 Equivalent to 5 /8s, 183 /16s and 154 /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: 3681 Total RIPE prefixes after maximum aggregation: 2886 RIPE Deaggregation factor: 1.28 Prefixes being announced from the RIPE address blocks: 3677 Unique aggregates announced from the RIPE address blocks: 2927 RIPE Region origin ASes present in the Internet Routing Table: 699 RIPE Prefixes per ASN: 5.26 RIPE Region origin ASes announcing only one prefix: 310 RIPE Region transit ASes present in the Internet Routing Table: 106 Average RIPE Region AS path length visible: 2.8 Max RIPE Region AS path length visible: 11 Number of RIPE region 32-bit ASNs visible in the Routing Table: 146 Number of RIPE addresses announced to Internet: 58043974 Equivalent to 3 /8s, 117 /16s and 174 /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: 1364 Total LACNIC prefixes after maximum aggregation: 566 LACNIC Deaggregation factor: 2.41 Prefixes being announced from the LACNIC address blocks: 1361 Unique aggregates announced from the LACNIC address blocks: 785 LACNIC Region origin ASes present in the Internet Routing Table: 158 LACNIC Prefixes per ASN: 8.61 LACNIC Region origin ASes announcing only one prefix: 58 LACNIC Region transit ASes present in the Internet Routing Table: 24 Average LACNIC Region AS path length visible: 4.8 Max LACNIC Region AS path length visible: 12 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 63 Number of LACNIC addresses announced to Internet: 3979936 Equivalent to 0 /8s, 60 /16s and 186 /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: 1037 Total AfriNIC prefixes after maximum aggregation: 205 AfriNIC Deaggregation factor: 5.06 Prefixes being announced from the AfriNIC address blocks: 1036 Unique aggregates announced from the AfriNIC address blocks: 290 AfriNIC Region origin ASes present in the Internet Routing Table: 51 AfriNIC Prefixes per ASN: 20.31 AfriNIC Region origin ASes announcing only one prefix: 24 AfriNIC Region transit ASes present in the Internet Routing Table: 10 Average AfriNIC Region AS path length visible: 2.9 Max AfriNIC Region AS path length visible: 13 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 27 Number of AfriNIC addresses announced to Internet: 2645248 Equivalent to 0 /8s, 40 /16s and 93 /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 598 2157 464 SINET-AS Research Organization of Infor 7497 435 182 24 CSTNET-AS-AP Computer Network Informati 1237 192 74 139 KREONET-AS-KR KISTI, KR 4538 192 4192 73 ERX-CERNET-BKB China Education and Rese 58647 178 18 2 KAGAWAU-AS Kagawa University, JP 7575 173 329 119 AARNET-AS-AP Australian Academic and Re 55824 118 18 11 NKN-CORE-NW NKN Core Network, IN 4621 70 37 10 UNINET-AS-AP UNINET-, TH 9411 66 16 2 NONTRINET-AS-AP Kasetsart University, T 4762 65 4 1 MAHIDOL-BORDER-AS Mahidol University, T Complete listing at https://bgp.nsrc.org/REN/GEANT/data-ASnet-APNIC ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 668 218 702 181 DNIC-AS-00668, US 5786 199 16 1 UPRENET, PR 376 198 178 148 RISQ-AS, CA 2152 152 507 91 CSUNET-NW, US 18558 134 18 4 NETBLK-RCOEK, US 81 129 521 32 NCREN, US 270 120 329 85 AS270, US 23024 113 7 17 OCDE, US 2920 109 34 7 LACOE, US 32440 106 34 17 LONI, US Complete listing at https://bgp.nsrc.org/REN/GEANT/data-ASnet-ARIN RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 680 283 1919 249 DFN Verein zur Foerderung eines Deutsch 786 186 1775 183 JANET Jisc Services Limited, GB 8895 176 24 4 ISU Internet Services Unit ISU, SA 559 113 533 105 SWITCH Peering requests: peering@switch 1103 95 1518 84 SURFNET-NL SURFnet, The Netherlands, NL 2614 94 27 74 ROEDUNET, RO 137 82 677 77 ASGARR Consortium GARR, IT 553 73 449 73 BELWUE BelWue-Koordination, DE 3267 67 64 28 RUNNET, RU 1930 65 81 60 RCCN Fundacao para a Ciencia e a Tecnol Complete listing at https://bgp.nsrc.org/REN/GEANT/data-ASnet-RIPE LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 1916 180 208 44 Rede Nacional de Ensino e Pesquisa, BR 28391 153 10 67 Universidad Juarez Autonoma de Tabasco, 11340 104 24 47 Red Universitaria Nacional, CL 1251 58 37 19 FUNDACAO DE AMPARO A PESQUISA DO ESTADO 2715 58 102 38 Fundacao Carlos Chagas Filho de Amparo 4270 45 16 1 Red de Interconexion Universitaria, AR 61468 42 3 14 CEDIA, EC 28614 38 2 2 Fundacao Universidade Regional de Blume 19611 37 17 2 Associacao Antonio Vieira - Unisinos, B 28571 37 40 18 UNIVERSIDADE DE SAO PAULO, BR Complete listing at https://bgp.nsrc.org/REN/GEANT/data-ASnet-LACNIC AfriNIC Region per AS prefix count summary ------------------------------------------ ASN No of nets /20 equiv MaxAgg Description 2018 380 319 72 TENET-1, ZA 36914 252 82 3 KENET-AS, KE 2561 67 4 34 EUN, EG 327687 61 28 3 RENU, UG 8094 48 48 15 PUKNET, ZA 37182 33 8 1 TERNET, TZ 3208 32 2 1 ARN, DZ 327700 31 16 1 MoRENet, MZ 6879 24 2 9 ENSTINET-, EG 37074 13 8 2 UG-AS, GH Complete listing at https://bgp.nsrc.org/REN/GEANT/data-ASnet-AFRINIC Global Per AS prefix count summary ---------------------------------- ASN No of nets /20 equiv MaxAgg Description 2907 598 2157 464 SINET-AS Research Organization of Infor 7497 435 182 24 CSTNET-AS-AP Computer Network Informati 2018 380 319 72 TENET-1, ZA 680 283 1919 249 DFN Verein zur Foerderung eines Deutsch 36914 252 82 3 KENET-AS, KE 668 218 702 181 DNIC-AS-00668, US 5786 199 16 1 UPRENET, PR 376 198 178 148 RISQ-AS, CA 1237 192 74 139 KREONET-AS-KR KISTI, KR 4538 192 4192 73 ERX-CERNET-BKB China Education and Rese Complete listing at https://bgp.nsrc.org/REN/GEANT/data-ASnet Global Per AS Maximum Aggregation summary ----------------------------------------- ASN No of nets Net Savings Description 7497 435 411 CSTNET-AS-AP Computer Network Information Cente 2018 380 308 TENET-1, ZA 36914 252 249 KENET-AS, KE 5786 199 198 UPRENET, PR 58647 178 176 KAGAWAU-AS Kagawa University, JP 8895 176 172 ISU Internet Services Unit ISU, SA 1916 180 136 Rede Nacional de Ensino e Pesquisa, BR 18558 134 130 NETBLK-RCOEK, US 4538 192 119 ERX-CERNET-BKB China Education and Research Net 55824 118 107 NKN-CORE-NW NKN Core Network, IN Complete listing at https://bgp.nsrc.org/REN/GEANT/data-CIDRnet List of Unregistered Origin ASNs (Global) ----------------------------------------- Bad AS Designation Net Originated Transit AS Transit AS Name 30797 UNALLOCATED 84.237.71.0/24 5387 NSC, RU 30797 UNALLOCATED 84.237.96.0/23 5387 NSC, RU 30797 UNALLOCATED 84.237.98.0/24 5387 NSC, RU 30797 UNALLOCATED 84.237.99.0/24 5387 NSC, RU 30797 UNALLOCATED 84.237.100.0/24 5387 NSC, RU 30797 UNALLOCATED 84.237.120.0/23 5387 NSC, RU 394607 UNALLOCATED 104.249.65.0/24 23024 OCDE, US 18621 UNALLOCATED 142.156.0.0/16 26677 ORION-ASN, CA 33008 UNALLOCATED 162.248.66.0/24 11096 FLORIDANET, US 19658 UNALLOCATED 199.27.241.0/24 11096 FLORIDANET, US Complete listing at https://bgp.nsrc.org/REN/GEANT/data-badAS Advertised Unallocated Addresses -------------------------------- Unassigned Network ASN Information AS Name 102.36.194.0/23 Origin: 2018 TENET-1, ZA 102.36.194.0/23 Transit: 20965 GEANT The GEANT IP Service, NL 192.31.196.0/24 Origin: 112 UNASSIGNED 192.31.196.0/24 Transit: 1103 SURFNET-NL SURFnet, The Netherlands, NL Complete listing at https://bgp.nsrc.org/REN/GEANT/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 /11:1 /12:10 /13:19 /14:36 /15:122 /16:2016 /17:415 /18:446 /19:563 /20:875 /21:881 /22:1485 /23:1569 /24:10396 /25:82 /26:55 /27:94 /28:0 /29:0 /30:0 /31:1 /32:19 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 36914 239 252 KENET-AS, KE 8895 171 176 ISU Internet Services Unit ISU, SA 32440 80 106 LONI, US 23024 52 113 OCDE, US 28614 32 38 Fundacao Universidade Regional de Blumenau, BR 37182 32 33 TERNET, TZ 46115 32 35 LUTHER, US 200521 31 53 SEAP-AGE, ES 25977 30 44 HCCS, US 263282 30 37 FUNDACAO UNIVERSIDADE DO OESTE DE SANTA CATARIN Complete listing at https://bgp.nsrc.org/REN/GEANT/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:2 5:15 6:4 8:2 12:1 14:89 23:6 24:3 31:7 35:6 38:9 40:1 41:137 42:15 44:5 45:37 46:5 47:1 49:6 50:3 52:1 58:12 59:21 60:4 61:3 62:15 63:37 64:54 65:5 66:48 67:44 68:8 69:20 70:2 71:1 72:7 74:50 76:41 77:9 78:3 79:10 80:19 81:28 82:6 83:6 84:22 85:44 86:10 87:1 89:10 91:48 92:2 93:4 94:4 95:2 96:5 97:1 98:2 101:8 102:16 103:305 104:81 107:16 108:8 109:10 110:2 111:16 114:23 116:6 117:61 118:33 119:21 121:29 122:8 123:8 124:39 125:4 128:86 129:39 130:87 131:61 132:49 133:157 134:99 136:199 137:91 138:9 139:6 140:51 141:1 142:38 143:30 144:28 145:2 146:107 147:57 148:192 149:12 150:130 151:9 152:144 153:14 154:30 155:55 156:66 157:34 158:37 159:115 160:27 161:20 162:20 163:76 164:10 165:51 166:1 167:16 168:125 169:10 170:79 172:3 173:7 175:31 176:8 177:9 179:10 180:15 181:1 182:1 184:3 185:50 186:3 187:19 188:13 189:3 190:18 191:36 192:1455 193:346 194:148 195:93 196:168 197:156 198:493 199:279 200:219 201:38 202:638 203:431 204:348 205:127 206:195 207:167 208:70 209:121 210:186 211:17 212:169 213:5 214:7 216:86 217:12 218:22 219:12 220:16 222:6 223:9 End of report