IPv4 R&E Routing Table Report 17:00 GMT Wed 15 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: 19143 Prefixes after maximum aggregation (per Origin AS): 10768 Deaggregation factor: 1.78 Unique aggregates announced (without unneeded subnets): 12036 Number of IPv4 prefixes with a valid ROA: 4674 Number of IPv4 prefixes with an invalid ROA: 16 Number of IPv4 prefixes with no ROA: 14453 Total ASes present in the Internet Routing Table: 2802 Prefixes per ASN: 6.83 Origin-only ASes present in the Internet Routing Table: 2428 Origin ASes announcing only one prefix: 1076 Transit ASes present in the Internet Routing Table: 374 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: 41449 Number of 32-bit ASNs visible in the Routing Table: 652 Prefixes from 32-bit ASNs in the Routing Table: 1824 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: 206464934 Equivalent to 12 /8s, 78 /16s and 103 /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: 2319 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 4766 Total APNIC prefixes after maximum aggregation: 2302 APNIC Deaggregation factor: 2.07 Prefixes being announced from the APNIC address blocks: 4767 Unique aggregates announced from the APNIC address blocks: 2627 APNIC Region origin ASes present in the Internet Routing Table: 578 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: 45871936 Equivalent to 2 /8s, 187 /16s and 243 /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: 8210 Total ARIN prefixes after maximum aggregation: 4796 ARIN Deaggregation factor: 1.71 Prefixes being announced from the ARIN address blocks: 8226 Unique aggregates announced from the ARIN address blocks: 5404 ARIN Region origin ASes present in the Internet Routing Table: 1250 ARIN Prefixes per ASN: 6.58 ARIN Region origin ASes announcing only one prefix: 433 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: 190 Number of ARIN addresses announced to Internet: 95914624 Equivalent to 5 /8s, 183 /16s and 138 /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: 3685 Total RIPE prefixes after maximum aggregation: 2888 RIPE Deaggregation factor: 1.28 Prefixes being announced from the RIPE address blocks: 3681 Unique aggregates announced from the RIPE address blocks: 2930 RIPE Region origin ASes present in the Internet Routing Table: 701 RIPE Prefixes per ASN: 5.25 RIPE Region origin ASes announcing only one prefix: 312 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: 58044998 Equivalent to 3 /8s, 117 /16s and 178 /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: 1438 Total LACNIC prefixes after maximum aggregation: 567 LACNIC Deaggregation factor: 2.54 Prefixes being announced from the LACNIC address blocks: 1435 Unique aggregates announced from the LACNIC address blocks: 782 LACNIC Region origin ASes present in the Internet Routing Table: 157 LACNIC Prefixes per ASN: 9.14 LACNIC Region origin ASes announcing only one prefix: 58 LACNIC Region transit ASes present in the Internet Routing Table: 25 Average LACNIC Region AS path length visible: 4.7 Max LACNIC Region AS path length visible: 12 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 62 Number of LACNIC addresses announced to Internet: 3979168 Equivalent to 0 /8s, 60 /16s and 183 /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: 1033 Total AfriNIC prefixes after maximum aggregation: 206 AfriNIC Deaggregation factor: 5.01 Prefixes being announced from the AfriNIC address blocks: 1032 Unique aggregates announced from the AfriNIC address blocks: 291 AfriNIC Region origin ASes present in the Internet Routing Table: 52 AfriNIC Prefixes per ASN: 19.85 AfriNIC Region origin ASes announcing only one prefix: 24 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: 13 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 28 Number of AfriNIC addresses announced to Internet: 2653440 Equivalent to 0 /8s, 40 /16s and 125 /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 668 212 702 181 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 259 208 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 44 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 246 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 1916 259 208 44 Rede Nacional de Ensino e Pesquisa, BR 36914 246 82 3 KENET-AS, KE 668 212 702 181 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 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 246 243 KENET-AS, KE 1916 259 215 Rede Nacional de Ensino e Pesquisa, BR 5786 199 198 UPRENET, PR 58647 178 176 KAGAWAU-AS Kagawa University, JP 8895 176 172 ISU Internet Services Unit ISU, SA 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 /19:564 /20:875 /21:881 /22:1493 /23:1572 /24:10424 /25:88 /26:63 /27:95 /28:0 /29:0 /30:0 /31:1 /32:19 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 36914 233 246 KENET-AS, KE 8895 171 176 ISU Internet Services Unit ISU, SA 32440 80 106 LONI, US 23024 52 113 OCDE, US 1916 38 259 Rede Nacional de Ensino e Pesquisa, BR 28614 32 38 Fundacao Universidade Regional de Blumenau, BR 37182 32 33 TERNET, TZ 46115 32 35 LUTHER, US 200521 32 55 SEAP-AGE, ES 25977 30 44 HCCS, US 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 41:135 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 82:7 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 98:2 101:8 102:16 103:305 104:81 107:16 108:8 109:10 110:2 111:16 114:23 116:6 117:61 118:33 119:21 121:29 122:8 123:8 124:39 125:4 128:86 129:39 130:87 131:61 132:49 133:157 134:96 136:199 137:91 138:9 139:6 140:46 141:1 142:38 143:29 144:28 145:2 146:107 147:57 148:192 149:12 150:130 151:9 152:144 153:14 154:30 155:55 156:66 157:34 158:37 159:115 160:27 161:20 162:20 163:76 164:10 165:51 166:1 167:16 168:125 169:10 170:76 172:3 173:7 175:31 176:8 177:9 179:10 180:15 181:1 182:1 184:4 185:51 186:3 187:19 188:13 189:3 190:18 191:36 192:1453 193:346 194:148 195:93 196:168 197:152 198:492 199:279 200:271 201:38 202:639 203:426 204:348 205:127 206:195 207:167 208:70 209:121 210:182 211:17 212:169 213:5 214:8 216:86 217:13 218:22 219:12 220:16 222:6 223:9 End of report