IPv4 R&E Routing Table Report 17:00 GMT Fri 23 Aug, 2024 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: 19267 Prefixes after maximum aggregation (per Origin AS): 10740 Deaggregation factor: 1.79 Unique aggregates announced (without unneeded subnets): 11872 Number of IPv4 prefixes with a valid ROA: 6229 Number of IPv4 prefixes with an invalid ROA: 9 Number of IPv4 prefixes with no ROA: 13029 Total ASes present in the Internet Routing Table: 2783 Prefixes per ASN: 6.92 Origin-only ASes present in the Internet Routing Table: 2417 Origin ASes announcing only one prefix: 1065 Transit ASes present in the Internet Routing Table: 366 Transit-only ASes present in the Internet Routing Table: 64 Paths with bogon ASNs present in the IPv4 Routing Table: 3 Average AS path length visible in the Internet Routing Table: 3.8 Max AS path length visible: 17 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: 45215 Number of 32-bit ASNs visible in the Routing Table: 659 Prefixes from 32-bit ASNs in the Routing Table: 1868 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: 7 Number of addresses announced to Internet: 204394032 Equivalent to 12 /8s, 46 /16s and 206 /24s Percentage of available address space announced: 5.5 Percentage of allocated address space announced: 5.5 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: 2360 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 4807 Total APNIC prefixes after maximum aggregation: 2337 APNIC Deaggregation factor: 2.06 Prefixes being announced from the APNIC address blocks: 4802 Unique aggregates announced from the APNIC address blocks: 2667 APNIC Region origin ASes present in the Internet Routing Table: 578 APNIC Prefixes per ASN: 8.31 APNIC Region origin ASes announcing only one prefix: 245 APNIC Region transit ASes present in the Internet Routing Table: 60 Average APNIC Region AS path length visible: 3.7 Max APNIC Region AS path length visible: 15 Number of APNIC region 32-bit ASNs visible in the Routing Table: 225 Number of APNIC addresses announced to Internet: 45751360 Equivalent to 2 /8s, 186 /16s and 28 /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: 8241 Total ARIN prefixes after maximum aggregation: 4812 ARIN Deaggregation factor: 1.71 Prefixes being announced from the ARIN address blocks: 8255 Unique aggregates announced from the ARIN address blocks: 5331 ARIN Region origin ASes present in the Internet Routing Table: 1256 ARIN Prefixes per ASN: 6.57 ARIN Region origin ASes announcing only one prefix: 439 ARIN Region transit ASes present in the Internet Routing Table: 152 Average ARIN Region AS path length visible: 4.2 Max ARIN Region AS path length visible: 15 Number of ARIN region 32-bit ASNs visible in the Routing Table: 200 Number of ARIN addresses announced to Internet: 92174688 Equivalent to 5 /8s, 126 /16s and 121 /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, 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: 3631 Total RIPE prefixes after maximum aggregation: 2888 RIPE Deaggregation factor: 1.26 Prefixes being announced from the RIPE address blocks: 3623 Unique aggregates announced from the RIPE address blocks: 2939 RIPE Region origin ASes present in the Internet Routing Table: 688 RIPE Prefixes per ASN: 5.27 RIPE Region origin ASes announcing only one prefix: 307 RIPE Region transit ASes present in the Internet Routing Table: 106 Average RIPE Region AS path length visible: 2.9 Max RIPE Region AS path length visible: 12 Number of RIPE region 32-bit ASNs visible in the Routing Table: 154 Number of RIPE addresses announced to Internet: 59761552 Equivalent to 3 /8s, 143 /16s and 227 /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, 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: 1416 Total LACNIC prefixes after maximum aggregation: 539 LACNIC Deaggregation factor: 2.63 Prefixes being announced from the LACNIC address blocks: 1413 Unique aggregates announced from the LACNIC address blocks: 718 LACNIC Region origin ASes present in the Internet Routing Table: 157 LACNIC Prefixes per ASN: 9.00 LACNIC Region origin ASes announcing only one prefix: 56 LACNIC Region transit ASes present in the Internet Routing Table: 23 Average LACNIC Region AS path length visible: 4.8 Max LACNIC Region AS path length visible: 13 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 64 Number of LACNIC addresses announced to Internet: 4193280 Equivalent to 0 /8s, 63 /16s and 252 /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: 1168 Total AfriNIC prefixes after maximum aggregation: 161 AfriNIC Deaggregation factor: 7.25 Prefixes being announced from the AfriNIC address blocks: 1167 Unique aggregates announced from the AfriNIC address blocks: 211 AfriNIC Region origin ASes present in the Internet Routing Table: 37 AfriNIC Prefixes per ASN: 31.54 AfriNIC Region origin ASes announcing only one prefix: 18 AfriNIC Region transit ASes present in the Internet Routing Table: 9 Average AfriNIC Region AS path length visible: 2.7 Max AfriNIC Region AS path length visible: 17 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 16 Number of AfriNIC addresses announced to Internet: 2502144 Equivalent to 0 /8s, 38 /16s and 46 /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 2169 465 SINET-AS Research Organization of Informa 7497 445 180 24 CSTNET-AS-AP Computer Network Information 1237 193 74 145 KREONET-AS-KR KISTI, KR 4538 192 4193 75 ERX-CERNET-BKB China Education and Resear 58647 180 18 2 KAGAWAU-AS Kagawa University, JP 7575 172 329 115 AARNET-AS-AP Australian Academic and Rese 55824 132 18 19 NKN-CORE-NW NKN Core Network, IN 4762 75 4 1 MAHIDOL-BORDER-AS Mahidol University, Tha 4621 69 37 10 UNINET-AS-AP UNINET-, TH 23570 59 5 11 INCHEON-AS-KR UNIVERSITY OF INCHEON, KR 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 668 205 648 174 DNIC-AS-00668, US 376 199 162 149 RISQ-AS, CA 5786 199 16 1 UPRENET, PR 2920 175 34 7 LACOE, US 270 162 345 88 AS270, US 2152 150 507 97 CENIC-2152, US 18558 140 18 4 NETBLK-RCOEK, US 81 133 517 33 NCREN, US 23024 95 7 21 OCDE, US 21976 87 50 17 NJEDGE-NET, 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 1899 250 DFN Verein zur Foerderung eines Deutschen 786 184 1767 181 JANET Jisc Services Limited, GB 8895 136 24 5 ISU Internet Services Unit ISU, SA 559 113 533 103 SWITCH Peering requests: peering@switch.c 1103 97 2015 84 SURFNET-NL SURFnet, The Netherlands, NL 2614 90 26 70 ROEDUNET, RO 3267 88 27 70 NIKS, RU 137 82 677 77 ASGARR Consortium GARR, IT 1930 79 88 74 RCCN Fundacao para a Ciencia e a Tecnolog 553 78 462 78 BELWUE BelWue-Koordination, DE 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 199 176 43 Rede Nacional de Ensino e Pesquisa, BR 28391 153 10 67 Universidad Juarez Autonoma de Tabasco, M 11340 109 25 52 Red Universitaria Nacional, CL 271640 67 8 1 UNIVERSIDADE FEDERAL DE VICOSA, BR 61468 49 5 17 CEDIA, EC 19611 48 17 2 Associacao Antonio Vieira - Unisinos, BR 4270 46 16 1 Red de Interconexion Universitaria, AR 2715 45 99 34 Fundacao Carlos Chagas Filho de Amparo a 3596 40 8 4 Universidad Autonoma Metropolitana, MX 28614 38 2 2 Fundacao Universidade Regional de Blumena 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 36914 531 82 3 KENET-AS, KE 2018 381 319 71 TENET-1, ZA 327700 50 16 1 MoRENet, MZ 8094 47 48 18 PUKNET, ZA 37182 38 8 1 TERNET, TZ 6879 24 2 9 ENSTINET-, EG 37661 13 8 5 NRaE1-AS, NG 30983 12 4 2 MARWAN-AS, MA 37501 11 49 6 UOFS, ZA 37215 10 8 1 MAREN, MW 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 2169 465 SINET-AS Research Organization of Informa 36914 531 82 3 KENET-AS, KE 7497 445 180 24 CSTNET-AS-AP Computer Network Information 2018 381 319 71 TENET-1, ZA 680 283 1899 250 DFN Verein zur Foerderung eines Deutschen 668 205 648 174 DNIC-AS-00668, US 376 199 162 149 RISQ-AS, CA 1916 199 176 43 Rede Nacional de Ensino e Pesquisa, BR 5786 199 16 1 UPRENET, PR 1237 193 74 145 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 36914 531 528 KENET-AS, KE 7497 445 421 CSTNET-AS-AP Computer Network Information Cente 2018 381 310 TENET-1, ZA 5786 199 198 UPRENET, PR 58647 180 178 KAGAWAU-AS Kagawa University, JP 2920 175 168 LACOE, US 1916 199 156 Rede Nacional de Ensino e Pesquisa, BR 18558 140 136 NETBLK-RCOEK, US 8895 136 131 ISU Internet Services Unit ISU, SA 4538 192 117 ERX-CERNET-BKB China Education and Research Net 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 65111 PRIVATE 62.40.99.40/29 20965 GEANT The GEANT IP Serv 64500 DOCUMENT 62.40.99.60/32 20965 GEANT The GEANT IP Serv 64500 DOCUMENT 62.40.99.61/32 20965 GEANT The GEANT IP Serv 26971 UNALLOCATED 129.111.0.0/16 276 OTS-AS-276, US Complete listing at https://bgp.nsrc.org/REN/GEANT/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 192.31.196.0/24 Origin: 112 RESERVED, ZZ 192.31.196.0/24 Transit: 1103 SURFNET-NL SURFnet, The Netherlands, NL 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 202.46.0.0/20 Origin: 147171 IDNIC-BRIN-AS-ID Badan Riset dan Inovasi 202.46.0.0/20 Transit: 64302 IDNIC-IDREN-AS-ID IDREN - Indonesia Rese 202.46.240.0/20 Origin: 147171 IDNIC-BRIN-AS-ID Badan Riset dan Inovasi 202.46.240.0/20 Transit: 64302 IDNIC-IDREN-AS-ID IDREN - Indonesia Rese 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 /10:1 /11:2 /12:10 /13:19 /14:35 /15:118 /16:2013 /17:427 /18:457 /19:591 /20:866 /21:898 /22:1413 /23:1536 /24:10715 /25:45 /26:49 /27:33 /28:8 /29:14 /30:10 /31:0 /32:6 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 36914 508 531 KENET-AS, KE 8895 131 136 ISU Internet Services Unit ISU, SA 327700 44 50 MoRENet, MZ 3267 42 88 NIKS, RU 1916 39 199 Rede Nacional de Ensino e Pesquisa, BR 23024 38 95 OCDE, US 37182 37 38 TERNET, TZ 32440 36 63 LONI, US 28614 32 38 Fundacao Universidade Regional de Blumenau, BR 46115 32 35 LUTHER, 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 14:92 23:5 24:3 31:1 35:3 37:8 38:10 40:1 41:266 42:17 44:5 45:50 46:5 47:1 49:10 50:3 52:1 58:17 59:20 60:6 61:3 62:14 63:33 64:44 65:1 66:43 67:42 68:10 69:18 70:2 71:1 72:7 74:53 76:41 77:10 78:3 79:10 80:16 81:24 82:6 83:7 84:11 85:34 86:10 87:1 89:11 91:44 92:2 93:13 94:2 95:2 96:5 97:1 98:2 101:4 102:6 103:316 104:77 108:8 109:4 111:15 113:2 114:24 116:9 117:61 118:35 119:23 121:28 122:8 123:8 124:41 125:5 128:84 129:34 130:95 131:62 132:67 133:154 134:109 136:199 137:51 138:57 139:6 140:36 141:3 142:25 143:24 144:25 145:2 146:135 147:64 148:193 149:13 150:40 151:9 152:135 153:15 154:37 155:63 156:138 157:15 158:35 159:121 160:30 161:16 162:22 163:61 164:14 165:47 166:1 167:10 168:119 169:6 170:88 172:2 173:6 175:17 177:6 179:13 180:16 181:1 182:9 184:8 185:55 186:3 187:20 188:13 189:3 190:18 191:13 192:1476 193:276 194:143 195:93 196:151 197:320 198:473 199:277 200:289 201:38 202:646 203:437 204:378 205:132 206:209 207:226 208:66 209:105 210:217 211:15 212:162 213:7 214:8 216:89 217:9 218:22 219:5 220:17 222:3 223:15 End of report