IPv4 R&E Routing Table Report 20:00 GMT Thu 04 Aug, 2022 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: 18598 Prefixes after maximum aggregation (per Origin AS): 10671 Deaggregation factor: 1.74 Unique aggregates announced (without unneeded subnets): 11848 Number of IPv4 prefixes with a valid ROA: 4182 Number of IPv4 prefixes with an invalid ROA: 38 Number of IPv4 prefixes with no ROA: 14378 Total ASes present in the Internet Routing Table: 2793 Prefixes per ASN: 6.66 Origin-only ASes present in the Internet Routing Table: 2404 Origin ASes announcing only one prefix: 1098 Transit ASes present in the Internet Routing Table: 389 Transit-only ASes present in the Internet Routing Table: 68 Paths with bogon ASNs present in the IPv4 Routing Table: 0 Average AS path length visible in the Internet Routing Table: 4.7 Max AS path length visible: 15 Max AS path prepend of ASN ( 10497) 11 Prefixes from unregistered ASNs in the Routing Table: 6 Number of instances of unregistered ASNs: 6 Number of 32-bit ASNs allocated by the RIRs: 39920 Number of 32-bit ASNs visible in the Routing Table: 644 Prefixes from 32-bit ASNs in the Routing Table: 1803 Number of bogon 32-bit ASNs visible in the Routing Table: 0 Special use prefixes present in the Routing Table: 1 Prefixes being announced from unallocated address space: 2 Number of addresses announced to Internet: 205375232 Equivalent to 12 /8s, 61 /16s and 199 /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: 2068 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 4644 Total APNIC prefixes after maximum aggregation: 2307 APNIC Deaggregation factor: 2.01 Prefixes being announced from the APNIC address blocks: 4645 Unique aggregates announced from the APNIC address blocks: 2618 APNIC Region origin ASes present in the Internet Routing Table: 586 APNIC Prefixes per ASN: 7.93 APNIC Region origin ASes announcing only one prefix: 256 APNIC Region transit ASes present in the Internet Routing Table: 68 Average APNIC Region AS path length visible: 3.9 Max APNIC Region AS path length visible: 15 Number of APNIC region 32-bit ASNs visible in the Routing Table: 231 Number of APNIC addresses announced to Internet: 45978624 Equivalent to 2 /8s, 189 /16s and 148 /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: 8023 Total ARIN prefixes after maximum aggregation: 4709 ARIN Deaggregation factor: 1.70 Prefixes being announced from the ARIN address blocks: 8040 Unique aggregates announced from the ARIN address blocks: 5276 ARIN Region origin ASes present in the Internet Routing Table: 1248 ARIN Prefixes per ASN: 6.44 ARIN Region origin ASes announcing only one prefix: 452 ARIN Region transit ASes present in the Internet Routing Table: 164 Average ARIN Region AS path length visible: 5.5 Max ARIN Region AS path length visible: 15 Number of ARIN region 32-bit ASNs visible in the Routing Table: 183 Number of ARIN addresses announced to Internet: 94518272 Equivalent to 5 /8s, 162 /16s and 60 /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: 3548 Total RIPE prefixes after maximum aggregation: 2859 RIPE Deaggregation factor: 1.24 Prefixes being announced from the RIPE address blocks: 3535 Unique aggregates announced from the RIPE address blocks: 2858 RIPE Region origin ASes present in the Internet Routing Table: 676 RIPE Prefixes per ASN: 5.23 RIPE Region origin ASes announcing only one prefix: 303 RIPE Region transit ASes present in the Internet Routing Table: 101 Average RIPE Region AS path length visible: 3.8 Max RIPE Region AS path length visible: 14 Number of RIPE region 32-bit ASNs visible in the Routing Table: 137 Number of RIPE addresses announced to Internet: 57973504 Equivalent to 3 /8s, 116 /16s and 155 /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: 1428 Total LACNIC prefixes after maximum aggregation: 573 LACNIC Deaggregation factor: 2.49 Prefixes being announced from the LACNIC address blocks: 1427 Unique aggregates announced from the LACNIC address blocks: 782 LACNIC Region origin ASes present in the Internet Routing Table: 159 LACNIC Prefixes per ASN: 8.97 LACNIC Region origin ASes announcing only one prefix: 62 LACNIC Region transit ASes present in the Internet Routing Table: 25 Average LACNIC Region AS path length visible: 6.0 Max LACNIC Region AS path length visible: 13 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 66 Number of LACNIC addresses announced to Internet: 4268544 Equivalent to 0 /8s, 65 /16s and 34 /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: 949 Total AfriNIC prefixes after maximum aggregation: 217 AfriNIC Deaggregation factor: 4.37 Prefixes being announced from the AfriNIC address blocks: 949 Unique aggregates announced from the AfriNIC address blocks: 312 AfriNIC Region origin ASes present in the Internet Routing Table: 51 AfriNIC Prefixes per ASN: 18.61 AfriNIC Region origin ASes announcing only one prefix: 25 AfriNIC Region transit ASes present in the Internet Routing Table: 11 Average AfriNIC Region AS path length visible: 4.4 Max AfriNIC Region AS path length visible: 12 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 27 Number of AfriNIC addresses announced to Internet: 2635776 Equivalent to 0 /8s, 40 /16s and 56 /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 573 2156 455 SINET-AS Research Organization of Infor 7497 433 182 24 CSTNET-AS-AP Computer Network Informati 1237 185 74 134 KREONET-AS-KR KISTI, KR 58647 175 18 2 KAGAWAU-AS Kagawa University, JP 7575 174 329 120 AARNET-AS-AP Australian Academic and Re 4538 128 4192 73 ERX-CERNET-BKB China Education and Rese 55824 116 18 11 NKN-CORE-NW NKN Core Network, IN 4621 78 37 10 UNINET-AS-AP UNINET-, TH 4762 65 4 1 MAHIDOL-BORDER-AS Mahidol University, T 23570 59 5 11 INCHEON-AS-KR UNIVERSITY OF INCHEON, KR 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 668 217 702 181 DNIC-AS-00668, US 376 203 178 152 RISQ-AS, CA 5786 200 16 1 UPRENET, PR 2152 154 507 92 CSUNET-NW, US 18558 137 18 4 NETBLK-RCOEK, US 23024 114 7 17 OCDE, US 2920 108 34 7 LACOE, US 32531 90 6 60 FORDHAM-UNIVERSITY, US 21976 85 51 18 NJEDGE-NET, US 1736 80 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 680 283 1951 250 DFN Verein zur Foerderung eines Deutsch 786 186 1775 183 JANET Jisc Services Limited, GB 8895 138 24 4 ISU Internet Services Unit ISU, SA 559 115 550 106 SWITCH Peering requests: peering@switch 1103 98 1520 86 SURFNET-NL SURFnet, The Netherlands, NL 2614 95 27 75 ROEDUNET, RO 137 82 677 77 ASGARR Consortium GARR, IT 553 73 449 73 BELWUE BelWue-Koordination, DE 2200 63 583 58 FR-RENATER Reseau National de telecommu 1930 58 81 53 RCCN Fundacao para a Ciencia e a Tecnol 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 157 208 44 Rede Nacional de Ensino e Pesquisa, BR 28391 152 10 66 Universidad Juarez Autonoma de Tabasco, 11340 95 24 54 Red Universitaria Nacional, CL 2715 59 102 39 Fundacao Carlos Chagas Filho de Amparo 1251 58 37 19 FUNDACAO DE AMPARO A PESQUISA DO ESTADO 4270 42 16 1 Red de Interconexion Universitaria, AR 61468 42 3 15 CEDIA, EC 28571 41 40 18 UNIVERSIDADE DE SAO PAULO, BR 19611 37 17 2 Associacao Antonio Vieira - Unisinos, B 28614 37 2 2 Fundacao Universidade Regional de Blume 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 375 319 73 TENET-1, ZA 36914 230 82 3 KENET-AS, KE 2561 67 4 32 EUN, EG 8094 48 48 15 PUKNET, ZA 327687 38 28 3 RENU, UG 327700 33 16 1 MoRENet, MZ 6879 24 2 9 ENSTINET-, EG 37182 20 1 14 TERNET, TZ 37074 13 8 2 UG-AS, GH 37501 11 49 6 UOFS, ZA 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 573 2156 455 SINET-AS Research Organization of Infor 7497 433 182 24 CSTNET-AS-AP Computer Network Informati 2018 375 319 73 TENET-1, ZA 680 283 1951 250 DFN Verein zur Foerderung eines Deutsch 36914 230 82 3 KENET-AS, KE 668 217 702 181 DNIC-AS-00668, US 376 203 178 152 RISQ-AS, CA 5786 200 16 1 UPRENET, PR 786 186 1775 183 JANET Jisc Services Limited, GB 1237 185 74 134 KREONET-AS-KR KISTI, KR 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 433 409 CSTNET-AS-AP Computer Network Information Cente 2018 375 302 TENET-1, ZA 36914 230 227 KENET-AS, KE 5786 200 199 UPRENET, PR 58647 175 173 KAGAWAU-AS Kagawa University, JP 8895 138 134 ISU Internet Services Unit ISU, SA 18558 137 133 NETBLK-RCOEK, US 1916 157 113 Rede Nacional de Ensino e Pesquisa, BR 55824 116 105 NKN-CORE-NW NKN Core Network, IN 2920 108 101 LACOE, US 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 394607 UNALLOCATED 104.249.65.0/24 23024 OCDE, US 22063 UNALLOCATED 153.10.0.0/16 2152 CSUNET-NW, US 22226 UNALLOCATED 156.1.0.0/16 2152 CSUNET-NW, US 19658 UNALLOCATED 199.27.241.0/24 11096 FLORIDANET, US 395514 UNALLOCATED 205.213.88.0/24 2381 WISCNET1-AS, US 394607 UNALLOCATED 216.100.93.0/24 23024 OCDE, US Complete listing at https://bgp.nsrc.org/REN/SingAREN/data-badAS Prefixes from the Special Purpose Address Registry (Global) ----------------------------------------------------------- Prefix Origin AS Description 192.88.99.0/24 1103 SURFNET-NL SURFnet, The Netherlands, NL Complete listing at https://bgp.nsrc.org/REN/SingAREN/data-spar 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 192.88.99.0/24 Origin: 1103 SURFNET-NL SURFnet, The Netherlands, NL 192.88.99.0/24 Transit: 23855 SINGAREN-GIX-AS-AP Singapore Advanced Re 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 /10:2 /11:1 /12:10 /13:18 /14:34 /15:122 /16:2008 /17:399 /18:442 /19:575 /20:877 /21:887 /22:1436 /23:1573 /24:10209 /25:0 /26:0 /27:1 /28:3 /29:0 /30:0 /31:0 /32:0 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 36914 217 230 KENET-AS, KE 8895 133 138 ISU Internet Services Unit ISU, SA 23024 53 114 OCDE, US 18632 34 63 VOLCANO-VISION, US 46115 32 35 LUTHER, US 25977 31 45 HCCS, US 28614 31 37 Fundacao Universidade Regional de Blumenau, BR 200521 31 52 SEAP-AGE, ES 32440 30 45 LONI, US 263282 30 37 FUNDACAO UNIVERSIDADE DO OESTE DE SANTA CATARIN Complete listing at https://bgp.nsrc.org/REN/SingAREN/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:3 5:15 6:4 8:2 12:1 14:85 18:43 23:10 24:3 31:7 35:4 37:6 38:9 40:1 41:129 42:10 44:5 45:37 46:5 47:1 49:10 50:4 52:1 58:1 59:20 60:4 61:3 62:9 63:38 64:56 65:5 66:35 67:45 68:8 69:19 70:2 71:1 72:8 74:50 76:35 77:8 78:3 79:10 80:18 81:27 82:7 83:6 84:8 85:43 86:4 87:1 88:1 89:10 91:47 92:1 93:10 94:4 95:4 96:5 97:1 98:2 101:6 102:13 103:317 104:75 107:16 108:10 109:10 110:4 111:16 114:23 116:6 117:61 118:32 119:24 121:27 122:8 123:8 124:39 125:4 128:86 129:38 130:90 131:76 132:59 133:145 134:100 136:200 137:74 138:12 139:5 140:57 141:1 142:39 143:30 144:23 145:4 146:129 147:59 148:192 149:12 150:130 151:6 152:74 153:13 154:30 155:51 156:67 157:29 158:41 159:116 160:26 161:22 162:26 163:75 164:15 165:57 166:1 167:13 168:122 169:10 170:66 172:2 173:7 175:31 176:8 177:11 179:10 180:19 181:1 182:4 184:4 185:43 186:3 187:19 188:13 189:3 190:34 191:36 192:1370 193:309 194:144 195:91 196:161 197:135 198:500 199:284 200:218 201:38 202:636 203:429 204:348 205:127 206:197 207:175 208:70 209:123 210:183 211:13 212:173 213:5 214:8 216:86 217:11 218:22 219:6 220:17 222:5 223:3 End of report