IPv4 R&E Routing Table Report 20:00 GMT Thu 13 Jun, 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: 18888 Prefixes after maximum aggregation (per Origin AS): 10567 Deaggregation factor: 1.79 Unique aggregates announced (without unneeded subnets): 11588 Number of IPv4 prefixes with a valid ROA: 5931 Number of IPv4 prefixes with an invalid ROA: 0 Number of IPv4 prefixes with no ROA: 12957 Total ASes present in the Internet Routing Table: 2757 Prefixes per ASN: 6.85 Origin-only ASes present in the Internet Routing Table: 2385 Origin ASes announcing only one prefix: 1053 Transit ASes present in the Internet Routing Table: 372 Transit-only ASes present in the Internet Routing Table: 69 Paths with bogon ASNs present in the IPv4 Routing Table: 0 Average AS path length visible in the Internet Routing Table: 4.5 Max AS path length visible: 17 Max AS path prepend of ASN (395156) 12 Prefixes from unregistered ASNs in the Routing Table: 3 Number of instances of unregistered ASNs: 3 Number of 32-bit ASNs allocated by the RIRs: 44738 Number of 32-bit ASNs visible in the Routing Table: 644 Prefixes from 32-bit ASNs in the Routing Table: 1782 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: 1 Number of addresses announced to Internet: 200552960 Equivalent to 11 /8s, 244 /16s and 50 /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: 2070 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 4573 Total APNIC prefixes after maximum aggregation: 2264 APNIC Deaggregation factor: 2.02 Prefixes being announced from the APNIC address blocks: 4573 Unique aggregates announced from the APNIC address blocks: 2553 APNIC Region origin ASes present in the Internet Routing Table: 551 APNIC Prefixes per ASN: 8.30 APNIC Region origin ASes announcing only one prefix: 235 APNIC Region transit ASes present in the Internet Routing Table: 59 Average APNIC Region AS path length visible: 3.4 Max APNIC Region AS path length visible: 10 Number of APNIC region 32-bit ASNs visible in the Routing Table: 212 Number of APNIC addresses announced to Internet: 45532160 Equivalent to 2 /8s, 182 /16s and 196 /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: 8573 Total ARIN prefixes after maximum aggregation: 4777 ARIN Deaggregation factor: 1.79 Prefixes being announced from the ARIN address blocks: 8588 Unique aggregates announced from the ARIN address blocks: 5231 ARIN Region origin ASes present in the Internet Routing Table: 1270 ARIN Prefixes per ASN: 6.76 ARIN Region origin ASes announcing only one prefix: 446 ARIN Region transit ASes present in the Internet Routing Table: 159 Average ARIN Region AS path length visible: 5.2 Max ARIN Region AS path length visible: 17 Number of ARIN region 32-bit ASNs visible in the Routing Table: 206 Number of ARIN addresses announced to Internet: 90921984 Equivalent to 5 /8s, 107 /16s and 92 /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: 3533 Total RIPE prefixes after maximum aggregation: 2834 RIPE Deaggregation factor: 1.25 Prefixes being announced from the RIPE address blocks: 3521 Unique aggregates announced from the RIPE address blocks: 2885 RIPE Region origin ASes present in the Internet Routing Table: 675 RIPE Prefixes per ASN: 5.22 RIPE Region origin ASes announcing only one prefix: 303 RIPE Region transit ASes present in the Internet Routing Table: 102 Average RIPE Region AS path length visible: 3.7 Max RIPE Region AS path length visible: 13 Number of RIPE region 32-bit ASNs visible in the Routing Table: 152 Number of RIPE addresses announced to Internet: 57562368 Equivalent to 3 /8s, 110 /16s and 85 /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: 1363 Total LACNIC prefixes after maximum aggregation: 542 LACNIC Deaggregation factor: 2.51 Prefixes being announced from the LACNIC address blocks: 1362 Unique aggregates announced from the LACNIC address blocks: 726 LACNIC Region origin ASes present in the Internet Routing Table: 160 LACNIC Prefixes per ASN: 8.51 LACNIC Region origin ASes announcing only one prefix: 55 LACNIC Region transit ASes present in the Internet Routing Table: 24 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: 64 Number of LACNIC addresses announced to Internet: 4132608 Equivalent to 0 /8s, 63 /16s and 15 /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: 843 Total AfriNIC prefixes after maximum aggregation: 147 AfriNIC Deaggregation factor: 5.73 Prefixes being announced from the AfriNIC address blocks: 843 Unique aggregates announced from the AfriNIC address blocks: 192 AfriNIC Region origin ASes present in the Internet Routing Table: 30 AfriNIC Prefixes per ASN: 28.10 AfriNIC Region origin ASes announcing only one prefix: 14 AfriNIC Region transit ASes present in the Internet Routing Table: 7 Average AfriNIC Region AS path length visible: 4.1 Max AfriNIC Region AS path length visible: 8 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 10 Number of AfriNIC addresses announced to Internet: 2403584 Equivalent to 0 /8s, 36 /16s and 173 /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 Infor 7497 440 180 24 UNASSIGNED 1237 191 74 142 UNASSIGNED 58647 182 18 2 KAGAWAU-AS Kagawa University, JP 7575 172 329 115 UNASSIGNED 55824 131 19 19 NKN-CORE-NW NKN Core Network, IN 4538 129 4192 72 ERX-CERNET-BKB China Education and Rese 9411 82 16 2 UNASSIGNED 4762 75 4 1 MAHIDOL-BORDER-AS Mahidol University, T 4621 70 37 10 UNASSIGNED 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 480 507 96 CSUNET-NW, US 2920 224 44 45 LACOE, US 376 203 162 152 RISQ-AS, CA 668 203 632 172 UNASSIGNED 5786 199 16 1 UPRENET, PR 18558 141 18 5 NETBLK-RCOEK, US 81 133 517 33 NCREN, US 23024 106 7 22 OCDE, US 237 85 543 51 UNASSIGNED 1736 79 16 1 MU-AS, 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 249 DFN Verein zur Foerderung eines Deutsch 786 184 1767 181 JANET Jisc Services Limited, GB 8895 133 24 5 ISU Internet Services Unit ISU, SA 559 113 533 103 SWITCH Peering requests: peering@switch 1103 95 1503 83 SURFNET-NL SURFnet, The Netherlands, NL 2614 93 27 73 ROEDUNET, RO 137 82 677 77 ASGARR Consortium GARR, IT 1930 79 88 74 RCCN Fundacao para a Ciencia e a Tecnol 553 78 462 78 BELWUE BelWue-Koordination, DE 3267 76 26 66 RUNNET, 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, 1916 139 176 42 Rede Nacional de Ensino e Pesquisa, BR 11340 109 25 52 Red Universitaria Nacional, CL 271640 65 8 1 UNIVERSIDADE FEDERAL DE VICOSA, BR 4270 50 17 3 Red de Interconexion Universitaria, AR 19611 48 17 2 Associacao Antonio Vieira - Unisinos, B 2715 46 99 35 Fundacao Carlos Chagas Filho de Amparo 61468 43 3 14 CEDIA, EC 28614 38 2 2 Fundacao Universidade Regional de Blume 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 2018 379 319 71 TENET-1, ZA 36914 251 82 3 KENET-AS, KE 8094 47 48 18 PUKNET, ZA 37215 36 8 1 MAREN, MW 327700 36 16 1 MoRENet, MZ 6879 24 2 9 ENSTINET-, EG 37182 12 8 1 TERNET, TZ 37501 11 49 6 UOFS, ZA 36982 8 33 8 UCT, ZA 37654 6 1 6 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 591 2162 464 SINET-AS Research Organization of Infor 2152 480 507 96 CSUNET-NW, US 7497 440 180 24 UNASSIGNED 2018 379 319 71 TENET-1, ZA 680 282 1899 249 DFN Verein zur Foerderung eines Deutsch 36914 251 82 3 KENET-AS, KE 2920 224 44 45 LACOE, US 376 203 162 152 RISQ-AS, CA 668 203 632 172 UNASSIGNED 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 7497 440 416 UNASSIGNED 2152 480 384 CSUNET-NW, US 2018 379 308 TENET-1, ZA 36914 251 248 KENET-AS, KE 5786 199 198 UPRENET, PR 58647 182 180 KAGAWAU-AS Kagawa University, JP 2920 224 179 LACOE, US 18558 141 136 NETBLK-RCOEK, US 8895 133 128 ISU Internet Services Unit ISU, SA 55824 131 112 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 UNASSIGNED 18838 UNALLOCATED 168.8.240.0/20 3480 PEACHNET-AS3480, US 18838 UNALLOCATED 168.9.0.0/20 3480 PEACHNET-AS3480, US Complete listing at https://bgp.nsrc.org/REN/SingAREN/data-badAS Advertised Unallocated Addresses -------------------------------- Unassigned Network ASN Information AS Name 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/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 /15:121 /16:1993 /17:420 /18:449 /19:567 /20:888 /21:879 /22:1527 /23:1600 /24:10380 /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 238 251 KENET-AS, KE 8895 128 133 ISU Internet Services Unit ISU, SA 2152 56 480 CSUNET-NW, US 23024 49 106 OCDE, US 32440 38 64 LONI, US 3267 35 76 RUNNET, RU 327700 35 36 MoRENet, MZ 18632 34 67 VOLCANO-VISION, US 200521 33 56 SEAP-AGE, ES 28614 32 38 Fundacao Universidade Regional de Blumenau, BR 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 14:91 23:5 24:3 31:1 35:3 38:10 40:1 41:196 42:10 44:6 45:42 46:5 47:1 49:9 50:5 52:1 59:19 60:6 61:3 62:8 63:37 64:45 65:5 66:61 67:42 68:10 69:19 70:2 71:1 72:7 74:52 76:42 77:10 78:3 79:10 80:14 81:24 82:6 83:7 84:8 85:30 86:5 87:1 89:11 91:48 92:2 93:5 94:2 95:2 97:2 98:2 101:1 102:5 103:268 104:76 107:16 108:8 109:8 114:24 116:8 117:61 118:34 119:21 121:11 122:8 123:8 124:41 125:5 128:83 129:40 130:83 131:62 132:66 133:157 134:109 136:198 137:79 138:57 139:5 140:38 141:3 142:26 143:25 144:26 145:2 146:135 147:63 148:194 149:11 150:41 151:9 152:136 153:15 154:29 155:64 156:134 157:21 158:35 159:119 160:30 161:17 162:23 163:59 164:14 165:48 166:1 167:13 168:120 169:6 170:107 171:1 172:3 173:6 175:18 176:8 177:4 179:14 180:15 181:1 182:1 184:2 185:52 186:3 187:18 188:13 189:3 190:18 191:13 192:1391 193:262 194:141 195:74 196:153 197:115 198:541 199:279 200:253 201:37 202:614 203:428 204:393 205:161 206:204 207:288 208:72 209:164 210:194 211:14 212:163 213:6 214:8 216:92 217:10 218:22 219:5 220:17 222:2 223:14 End of report