IPv4 R&E Routing Table Report 20:00 GMT Thu 14 Nov, 2024 IPv4 BGP Table (R&E) as seen at SingAREN. Report Website: https://bgp.nsrc.org/REN Detailed Analysis: https://bgp.nsrc.org/REN/SingAREN/ Analysis Summary ---------------- BGP routing table entries examined: 19424 Prefixes after maximum aggregation (per Origin AS): 10701 Deaggregation factor: 1.82 Unique aggregates announced (without unneeded subnets): 11769 Number of IPv4 prefixes with a valid ROA: 7443 Number of IPv4 prefixes with an invalid ROA: 2 Number of IPv4 prefixes with no ROA: 11979 Total ASes present in the Internet Routing Table: 2796 Prefixes per ASN: 6.95 Origin-only ASes present in the Internet Routing Table: 2413 Origin ASes announcing only one prefix: 1079 Transit ASes present in the Internet Routing Table: 383 Transit-only ASes present in the Internet Routing Table: 71 Paths with bogon ASNs present in the IPv4 Routing Table: 0 Average AS path length visible in the Internet Routing Table: 4.6 Max AS path length visible: 19 Max AS path prepend of ASN (395156) 12 Prefixes from unregistered ASNs in the Routing Table: 1 Number of instances of unregistered ASNs: 1 Number of 32-bit ASNs allocated by the RIRs: 45846 Number of 32-bit ASNs visible in the Routing Table: 671 Prefixes from 32-bit ASNs in the Routing Table: 1826 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: 201433088 Equivalent to 12 /8s, 1 /16s and 160 /24s Percentage of available address space announced: 5.4 Percentage of allocated address space announced: 5.4 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: 2312 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 4621 Total APNIC prefixes after maximum aggregation: 2266 APNIC Deaggregation factor: 2.04 Prefixes being announced from the APNIC address blocks: 4619 Unique aggregates announced from the APNIC address blocks: 2617 APNIC Region origin ASes present in the Internet Routing Table: 562 APNIC Prefixes per ASN: 8.22 APNIC Region origin ASes announcing only one prefix: 239 APNIC Region transit ASes present in the Internet Routing Table: 59 Average APNIC Region AS path length visible: 3.5 Max APNIC Region AS path length visible: 11 Number of APNIC region 32-bit ASNs visible in the Routing Table: 209 Number of APNIC addresses announced to Internet: 45617152 Equivalent to 2 /8s, 184 /16s and 16 /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: 8654 Total ARIN prefixes after maximum aggregation: 4852 ARIN Deaggregation factor: 1.78 Prefixes being announced from the ARIN address blocks: 8668 Unique aggregates announced from the ARIN address blocks: 5315 ARIN Region origin ASes present in the Internet Routing Table: 1282 ARIN Prefixes per ASN: 6.76 ARIN Region origin ASes announcing only one prefix: 454 ARIN Region transit ASes present in the Internet Routing Table: 156 Average ARIN Region AS path length visible: 5.3 Max ARIN Region AS path length visible: 17 Number of ARIN region 32-bit ASNs visible in the Routing Table: 212 Number of ARIN addresses announced to Internet: 90424832 Equivalent to 5 /8s, 99 /16s and 198 /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: 3581 Total RIPE prefixes after maximum aggregation: 2878 RIPE Deaggregation factor: 1.24 Prefixes being announced from the RIPE address blocks: 3569 Unique aggregates announced from the RIPE address blocks: 2916 RIPE Region origin ASes present in the Internet Routing Table: 674 RIPE Prefixes per ASN: 5.30 RIPE Region origin ASes announcing only one prefix: 301 RIPE Region transit ASes present in the Internet Routing Table: 108 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: 158 Number of RIPE addresses announced to Internet: 58660608 Equivalent to 3 /8s, 127 /16s and 23 /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: 1446 Total LACNIC prefixes after maximum aggregation: 541 LACNIC Deaggregation factor: 2.67 Prefixes being announced from the LACNIC address blocks: 1445 Unique aggregates announced from the LACNIC address blocks: 725 LACNIC Region origin ASes present in the Internet Routing Table: 156 LACNIC Prefixes per ASN: 9.26 LACNIC Region origin ASes announcing only one prefix: 54 LACNIC Region transit ASes present in the Internet Routing Table: 23 Average LACNIC Region AS path length visible: 6.1 Max LACNIC Region AS path length visible: 15 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 64 Number of LACNIC addresses announced to Internet: 4198912 Equivalent to 0 /8s, 64 /16s and 18 /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: 1121 Total AfriNIC prefixes after maximum aggregation: 163 AfriNIC Deaggregation factor: 6.88 Prefixes being announced from the AfriNIC address blocks: 1120 Unique aggregates announced from the AfriNIC address blocks: 193 AfriNIC Region origin ASes present in the Internet Routing Table: 50 AfriNIC Prefixes per ASN: 22.40 AfriNIC Region origin ASes announcing only one prefix: 31 AfriNIC Region transit ASes present in the Internet Routing Table: 11 Average AfriNIC Region AS path length visible: 4.3 Max AfriNIC Region AS path length visible: 19 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 28 Number of AfriNIC addresses announced to Internet: 2529024 Equivalent to 0 /8s, 38 /16s and 151 /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 590 2170 464 SINET-AS Research Organization of Informa 7497 447 180 24 CSTNET-AS-AP Computer Network Information 1237 191 74 145 KREONET-AS-KR KISTI, KR 58647 180 18 2 KAGAWAU-AS Kagawa University, JP 7575 172 329 115 AARNET-AS-AP Australian Academic and Rese 4538 138 4192 72 ERX-CERNET-BKB China Education and Resear 55824 131 18 18 NKN-CORE-NW NKN Core Network, IN 4762 75 4 1 MAHIDOL-BORDER-AS Mahidol University, Tha 4621 66 37 10 UNINET-AS-AP UNINET-, TH 2697 59 4 34 ERX-ERNET-AS Education and Research Netwo Complete listing at https://bgp.nsrc.org/REN/SingAREN/data-ASnet-APNIC ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 2152 511 507 99 CENIC-2152, US 2920 229 44 49 LACOE, US 668 205 648 174 DNIC-AS-00668, US 5786 197 16 1 UPRENET, PR 376 185 161 138 RISQ-AS, CA 18558 141 18 5 NETBLK-RCOEK, US 81 134 517 33 NCREN, US 23024 95 7 21 OCDE, US 21976 91 50 17 NJEDGE-NET, US 237 85 541 50 MERIT-AS-14, US Complete listing at https://bgp.nsrc.org/REN/SingAREN/data-ASnet-ARIN RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 680 281 1899 248 DFN Verein zur Foerderung eines Deutschen 786 186 1767 183 JANET Jisc Services Limited, GB 8895 133 24 5 ISU Internet Services Unit ISU, SA 559 114 533 104 SWITCH Peering requests: peering@switch.c 1103 97 1759 84 SURFNET-NL SURFnet, The Netherlands, NL 2614 93 26 73 ROEDUNET, RO 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 3267 76 26 66 NIKS, RU Complete listing at https://bgp.nsrc.org/REN/SingAREN/data-ASnet-RIPE LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 1916 217 178 42 Rede Nacional de Ensino e Pesquisa, BR 28391 154 10 68 Universidad Juarez Autonoma de Tabasco, M 11340 110 25 53 Red Universitaria Nacional, CL 271640 66 8 1 UNIVERSIDADE FEDERAL DE VICOSA, BR 61468 51 5 17 CEDIA, EC 2715 49 99 35 Fundacao Carlos Chagas Filho de Amparo a 4270 48 16 2 Red de Interconexion Universitaria, AR 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/SingAREN/data-ASnet-LACNIC AfriNIC Region per AS prefix count summary ------------------------------------------ ASN No of nets /20 equiv MaxAgg Description 36914 537 82 3 KENET-AS, KE 2018 381 319 71 TENET-1, ZA 8094 47 48 18 PUKNET, ZA 37215 33 8 1 MAREN, MW 37074 15 8 2 UG-AS, GH 327700 15 16 1 MoRENet, MZ 37661 12 8 4 NRaE1-AS, NG 37501 11 49 6 UOFS, ZA 36982 8 33 8 UCT, ZA 37654 6 0 5 RwEdNet-AS, RW Complete listing at https://bgp.nsrc.org/REN/SingAREN/data-ASnet-AFRINIC Global Per AS prefix count summary ---------------------------------- ASN No of nets /20 equiv MaxAgg Description 2907 590 2170 464 SINET-AS Research Organization of Informa 36914 537 82 3 KENET-AS, KE 2152 511 507 99 CENIC-2152, US 7497 447 180 24 CSTNET-AS-AP Computer Network Information 2018 381 319 71 TENET-1, ZA 680 281 1899 248 DFN Verein zur Foerderung eines Deutschen 2920 229 44 49 LACOE, US 1916 217 178 42 Rede Nacional de Ensino e Pesquisa, BR 668 205 648 174 DNIC-AS-00668, US 5786 197 16 1 UPRENET, PR Complete listing at https://bgp.nsrc.org/REN/SingAREN/data-ASnet Global Per AS Maximum Aggregation summary ----------------------------------------- ASN No of nets Net Savings Description 36914 537 534 KENET-AS, KE 7497 447 423 CSTNET-AS-AP Computer Network Information Cente 2152 511 412 CENIC-2152, US 2018 381 310 TENET-1, ZA 5786 197 196 UPRENET, PR 2920 229 180 LACOE, US 58647 180 178 KAGAWAU-AS Kagawa University, JP 1916 217 175 Rede Nacional de Ensino e Pesquisa, BR 18558 141 136 NETBLK-RCOEK, US 8895 133 128 ISU Internet Services Unit ISU, SA Complete listing at https://bgp.nsrc.org/REN/SingAREN/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 Complete listing at https://bgp.nsrc.org/REN/SingAREN/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 202.46.245.0/24 Origin: 147171 IDNIC-BRIN-AS-ID Badan Riset dan Inovasi 202.46.245.0/24 Transit: 64302 IDNIC-IDREN-AS-ID IDREN - Indonesia Rese 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/SingAREN/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 /11:1 /12:11 /13:18 /14:33 /15:118 /16:1991 /17:425 /18:461 /19:586 /20:874 /21:897 /22:1487 /23:1613 /24:10907 /25:0 /26:0 /27:0 /28:0 /29:0 /30:0 /31:0 /32:0 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 36914 513 537 KENET-AS, KE 8895 128 133 ISU Internet Services Unit ISU, SA 2152 61 511 CENIC-2152, US 23024 37 95 OCDE, US 32440 37 63 LONI, US 3267 34 76 NIKS, RU 28614 32 38 Fundacao Universidade Regional de Blumenau, BR 46115 32 35 LUTHER, US 25977 30 44 HCCS, US 200521 30 53 SEAP-AGE, ES Complete listing at https://bgp.nsrc.org/REN/SingAREN/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:2 5:15 6:4 8:2 12:2 14:92 23:8 24:3 31:1 35:3 37:8 38:10 40:1 41:219 42:11 44:6 45:50 46:4 47:1 49:10 50:4 52:1 59:19 60:6 61:3 62:8 63:37 64:45 65:5 66:56 67:42 68:11 69:19 70:2 71:1 72:7 74:54 76:42 77:10 78:3 79:10 80:12 81:25 82:7 83:7 84:8 85:45 86:5 87:1 89:11 91:42 92:2 93:13 94:2 95:2 96:5 97:1 98:2 101:1 102:12 103:290 104:78 107:2 108:8 109:4 111:20 113:2 114:24 116:9 117:61 118:33 119:23 121:27 122:8 123:8 124:42 125:5 128:56 129:36 130:96 131:61 132:65 133:154 134:109 136:197 137:96 138:58 139:6 140:36 141:3 142:53 143:26 144:27 145:2 146:137 147:63 148:196 149:12 150:40 151:9 152:139 153:14 154:39 155:63 156:133 157:27 158:30 159:118 160:32 161:16 162:24 163:62 164:11 165:47 166:1 167:26 168:120 169:7 170:97 171:1 172:2 173:7 175:16 177:6 179:13 180:16 181:1 182:11 184:3 185:54 186:3 187:21 188:13 189:2 190:18 191:13 192:1400 193:274 194:137 195:51 196:147 197:331 198:544 199:278 200:334 201:37 202:634 203:438 204:407 205:175 206:199 207:311 208:67 209:156 210:218 211:3 212:165 213:6 214:8 216:90 217:9 218:21 219:5 220:17 222:2 223:15 End of report