IPv4 R&E Routing Table Report 20:00 GMT Thu 25 Jul, 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: 19238 Prefixes after maximum aggregation (per Origin AS): 10704 Deaggregation factor: 1.80 Unique aggregates announced (without unneeded subnets): 11728 Number of IPv4 prefixes with a valid ROA: 6113 Number of IPv4 prefixes with an invalid ROA: 5 Number of IPv4 prefixes with no ROA: 13120 Total ASes present in the Internet Routing Table: 2808 Prefixes per ASN: 6.85 Origin-only ASes present in the Internet Routing Table: 2417 Origin ASes announcing only one prefix: 1079 Transit ASes present in the Internet Routing Table: 391 Transit-only ASes present in the Internet Routing Table: 84 Paths with bogon ASNs present in the IPv4 Routing Table: 0 Average AS path length visible in the Internet Routing Table: 4.8 Max AS path length visible: 17 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: 45031 Number of 32-bit ASNs visible in the Routing Table: 650 Prefixes from 32-bit ASNs in the Routing Table: 1783 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: 5 Number of addresses announced to Internet: 200938240 Equivalent to 11 /8s, 250 /16s and 19 /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: 2268 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 4644 Total APNIC prefixes after maximum aggregation: 2300 APNIC Deaggregation factor: 2.02 Prefixes being announced from the APNIC address blocks: 4641 Unique aggregates announced from the APNIC address blocks: 2639 APNIC Region origin ASes present in the Internet Routing Table: 564 APNIC Prefixes per ASN: 8.23 APNIC Region origin ASes announcing only one prefix: 242 APNIC Region transit ASes present in the Internet Routing Table: 61 Average APNIC Region AS path length visible: 3.4 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: 45703680 Equivalent to 2 /8s, 185 /16s and 98 /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: 8633 Total ARIN prefixes after maximum aggregation: 4818 ARIN Deaggregation factor: 1.79 Prefixes being announced from the ARIN address blocks: 8645 Unique aggregates announced from the ARIN address blocks: 5237 ARIN Region origin ASes present in the Internet Routing Table: 1284 ARIN Prefixes per ASN: 6.73 ARIN Region origin ASes announcing only one prefix: 453 ARIN Region transit ASes present in the Internet Routing Table: 168 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: 208 Number of ARIN addresses announced to Internet: 90889984 Equivalent to 5 /8s, 106 /16s and 223 /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: 3563 Total RIPE prefixes after maximum aggregation: 2889 RIPE Deaggregation factor: 1.23 Prefixes being announced from the RIPE address blocks: 3551 Unique aggregates announced from the RIPE address blocks: 2930 RIPE Region origin ASes present in the Internet Routing Table: 679 RIPE Prefixes per ASN: 5.23 RIPE Region origin ASes announcing only one prefix: 305 RIPE Region transit ASes present in the Internet Routing Table: 105 Average RIPE Region AS path length visible: 4.4 Max RIPE Region AS path length visible: 14 Number of RIPE region 32-bit ASNs visible in the Routing Table: 154 Number of RIPE addresses announced to Internet: 57645056 Equivalent to 3 /8s, 111 /16s and 152 /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: 1359 Total LACNIC prefixes after maximum aggregation: 544 LACNIC Deaggregation factor: 2.50 Prefixes being announced from the LACNIC address blocks: 1359 Unique aggregates announced from the LACNIC address blocks: 723 LACNIC Region origin ASes present in the Internet Routing Table: 165 LACNIC Prefixes per ASN: 8.24 LACNIC Region origin ASes announcing only one prefix: 63 LACNIC Region transit ASes present in the Internet Routing Table: 25 Average LACNIC Region AS path length visible: 6.2 Max LACNIC Region AS path length visible: 15 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 68 Number of LACNIC addresses announced to Internet: 4271104 Equivalent to 0 /8s, 65 /16s and 44 /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: 1038 Total AfriNIC prefixes after maximum aggregation: 152 AfriNIC Deaggregation factor: 6.83 Prefixes being announced from the AfriNIC address blocks: 1037 Unique aggregates announced from the AfriNIC address blocks: 195 AfriNIC Region origin ASes present in the Internet Routing Table: 31 AfriNIC Prefixes per ASN: 33.45 AfriNIC Region origin ASes announcing only one prefix: 16 AfriNIC Region transit ASes present in the Internet Routing Table: 7 Average AfriNIC Region AS path length visible: 5.4 Max AfriNIC Region AS path length visible: 10 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 11 Number of AfriNIC addresses announced to Internet: 2417920 Equivalent to 0 /8s, 36 /16s and 229 /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 591 2162 464 SINET-AS Research Organization of Informa 7497 448 180 24 CSTNET-AS-AP Computer Network Information 1237 190 74 145 KREONET-AS-KR KISTI, KR 58647 183 18 2 KAGAWAU-AS Kagawa University, JP 7575 172 329 115 AARNET-AS-AP Australian Academic and Rese 55824 130 18 19 NKN-CORE-NW NKN Core Network, IN 4538 129 4192 72 ERX-CERNET-BKB China Education and Resear 4621 66 37 10 UNINET-AS-AP UNINET-, TH 23570 59 5 11 INCHEON-AS-KR UNIVERSITY OF INCHEON, KR 2697 58 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 505 507 99 CENIC-2152, US 2920 230 44 49 LACOE, US 668 205 648 174 DNIC-AS-00668, US 376 202 162 151 RISQ-AS, CA 5786 199 16 1 UPRENET, PR 18558 141 18 5 NETBLK-RCOEK, US 81 133 517 33 NCREN, US 23024 96 7 21 OCDE, US 21976 87 50 17 NJEDGE-NET, US 237 84 543 51 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 680 282 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 96 1503 83 SURFNET-NL SURFnet, The Netherlands, NL 2614 90 26 70 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 28391 153 10 67 Universidad Juarez Autonoma de Tabasco, M 1916 141 176 42 Rede Nacional de Ensino e Pesquisa, BR 11340 109 25 52 Red Universitaria Nacional, CL 271640 67 8 1 UNIVERSIDADE FEDERAL DE VICOSA, BR 4270 48 16 2 Red de Interconexion Universitaria, AR 19611 48 17 2 Associacao Antonio Vieira - Unisinos, BR 2715 45 99 34 Fundacao Carlos Chagas Filho de Amparo a 61468 45 5 15 CEDIA, EC 28614 38 2 2 Fundacao Universidade Regional de Blumena 3596 37 8 4 Universidad Autonoma Metropolitana, MX 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 456 82 3 KENET-AS, KE 2018 381 319 71 TENET-1, ZA 8094 47 48 18 PUKNET, ZA 327700 46 16 1 MoRENet, MZ 6879 24 2 9 ENSTINET-, EG 37661 13 8 5 NRaE1-AS, NG 37182 11 8 1 TERNET, TZ 37501 11 49 6 UOFS, ZA 36982 8 33 8 UCT, ZA 37215 7 8 1 MAREN, MW 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 591 2162 464 SINET-AS Research Organization of Informa 2152 505 507 99 CENIC-2152, US 36914 456 82 3 KENET-AS, KE 7497 448 180 24 CSTNET-AS-AP Computer Network Information 2018 381 319 71 TENET-1, ZA 680 282 1899 250 DFN Verein zur Foerderung eines Deutschen 2920 230 44 49 LACOE, US 668 205 648 174 DNIC-AS-00668, US 376 202 162 151 RISQ-AS, CA 5786 199 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 456 453 KENET-AS, KE 7497 448 424 CSTNET-AS-AP Computer Network Information Cente 2152 505 406 CENIC-2152, US 2018 381 310 TENET-1, ZA 5786 199 198 UPRENET, PR 2920 230 181 LACOE, US 58647 183 181 KAGAWAU-AS Kagawa University, JP 18558 141 136 NETBLK-RCOEK, US 8895 136 131 ISU Internet Services Unit ISU, SA 55824 130 111 NKN-CORE-NW NKN Core Network, IN 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 192.31.196.0/24 Origin: 112 RESERVED, ZZ 192.31.196.0/24 Transit: 1103 SURFNET-NL SURFnet, The Netherlands, NL 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 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 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 /12:10 /13:18 /14:33 /15:118 /16:1998 /17:422 /18:452 /19:576 /20:887 /21:883 /22:1468 /23:1609 /24:10761 /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 446 456 KENET-AS, KE 8895 131 136 ISU Internet Services Unit ISU, SA 2152 61 505 CENIC-2152, US 327700 40 46 MoRENet, MZ 23024 38 96 OCDE, US 32440 36 62 LONI, US 3267 35 76 NIKS, RU 28614 32 38 Fundacao Universidade Regional de Blumenau, BR 46115 32 35 LUTHER, US 18632 31 64 VOLCANO-VISION, US 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 12:1 14:90 23:5 24:3 31:1 35:3 38:10 40:1 41:177 42:10 44:6 45:51 46:5 47:1 49:10 50:5 52:1 58:1 59:19 60:6 61:3 62:8 63:37 64:45 65:5 66:51 67:43 68:10 69:19 70:2 71:1 72:7 74:52 76:42 77:10 78:3 79:10 80:13 81:25 82:6 83:7 84:8 85:41 86:5 87:1 89:11 91:49 92:2 93:6 94:2 95:2 96:5 97:2 98:2 101:1 102:6 103:284 104:77 107:14 108:8 109:8 111:16 113:2 114:24 116:8 117:61 118:34 119:23 121:27 122:8 123:8 124:43 125:5 128:84 129:36 130:93 131:62 132:67 133:158 134:108 136:198 137:89 138:57 139:5 140:34 141:3 142:24 143:25 144:26 145:2 146:135 147:63 148:194 149:11 150:40 151:9 152:135 153:15 154:37 155:63 156:134 157:21 158:35 159:121 160:30 161:17 162:23 163:60 164:14 165:48 166:1 167:14 168:120 169:6 170:106 171:1 172:3 173:6 175:29 176:8 177:5 179:14 180:16 181:1 182:9 184:2 185:51 186:3 187:18 188:13 189:3 190:18 191:13 192:1396 193:266 194:141 195:75 196:147 197:319 198:578 199:275 200:259 201:38 202:605 203:439 204:394 205:175 206:205 207:287 208:71 209:169 210:216 211:14 212:161 213:6 214:8 216:91 217:9 218:22 219:5 220:17 222:2 223:14 End of report