Global R&E Routing Table Report 20:00 GMT Sun 12 Dec, 2021 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: 15707 Prefixes after maximum aggregation (per Origin AS): 9164 Deaggregation factor: 1.71 Unique aggregates announced (without unneeded subnets): 10101 Total ASes present in the Internet Routing Table: 2420 Prefixes per ASN: 6.49 Origin-only ASes present in the Internet Routing Table: 2079 Origin ASes announcing only one prefix: 963 Transit ASes present in the Internet Routing Table: 341 Transit-only ASes present in the Internet Routing Table: 49 Average AS path length visible in the Internet Routing Table: 7.3 Max AS path length visible: 21 Max AS path prepend of ASN (211089) 11 Prefixes from unregistered ASNs in the Routing Table: 2 Number of instances of unregistered ASNs: 2 Number of 32-bit ASNs allocated by the RIRs: 38065 Number of 32-bit ASNs visible in the Routing Table: 509 Prefixes from 32-bit ASNs in the Routing Table: 1397 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: 187004416 Equivalent to 11 /8s, 37 /16s and 118 /24s Percentage of available address space announced: 5.1 Percentage of allocated address space announced: 5.1 Percentage of available address space allocated: 100.0 Percentage of address space in use by end-sites: 99.5 Total number of prefixes smaller than registry allocations: 1553 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 3641 Total APNIC prefixes after maximum aggregation: 1693 APNIC Deaggregation factor: 2.15 Prefixes being announced from the APNIC address blocks: 3642 Unique aggregates announced from the APNIC address blocks: 1923 APNIC Region origin ASes present in the Internet Routing Table: 486 APNIC Prefixes per ASN: 7.49 APNIC Region origin ASes announcing only one prefix: 205 APNIC Region transit ASes present in the Internet Routing Table: 61 Average APNIC Region AS path length visible: 4.3 Max APNIC Region AS path length visible: 14 Number of APNIC region 32-bit ASNs visible in the Routing Table: 209 Number of APNIC addresses announced to Internet: 32640768 Equivalent to 1 /8s, 242 /16s and 15 /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: 7798 Total ARIN prefixes after maximum aggregation: 4481 ARIN Deaggregation factor: 1.74 Prefixes being announced from the ARIN address blocks: 7812 Unique aggregates announced from the ARIN address blocks: 5009 ARIN Region origin ASes present in the Internet Routing Table: 1189 ARIN Prefixes per ASN: 6.57 ARIN Region origin ASes announcing only one prefix: 434 ARIN Region transit ASes present in the Internet Routing Table: 154 Average ARIN Region AS path length visible: 10.3 Max ARIN Region AS path length visible: 21 Number of ARIN region 32-bit ASNs visible in the Routing Table: 157 Number of ARIN addresses announced to Internet: 93481472 Equivalent to 5 /8s, 146 /16s and 106 /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: 3186 Total RIPE prefixes after maximum aggregation: 2722 RIPE Deaggregation factor: 1.17 Prefixes being announced from the RIPE address blocks: 3174 Unique aggregates announced from the RIPE address blocks: 2716 RIPE Region origin ASes present in the Internet Routing Table: 648 RIPE Prefixes per ASN: 4.90 RIPE Region origin ASes announcing only one prefix: 309 RIPE Region transit ASes present in the Internet Routing Table: 100 Average RIPE Region AS path length visible: 3.8 Max RIPE Region AS path length visible: 15 Number of RIPE region 32-bit ASNs visible in the Routing Table: 131 Number of RIPE addresses announced to Internet: 57968640 Equivalent to 3 /8s, 116 /16s and 136 /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: 214 Total LACNIC prefixes after maximum aggregation: 102 LACNIC Deaggregation factor: 2.10 Prefixes being announced from the LACNIC address blocks: 211 Unique aggregates announced from the LACNIC address blocks: 186 LACNIC Region origin ASes present in the Internet Routing Table: 19 LACNIC Prefixes per ASN: 11.11 LACNIC Region origin ASes announcing only one prefix: 9 LACNIC Region transit ASes present in the Internet Routing Table: 6 Average LACNIC Region AS path length visible: 12.3 Max LACNIC Region AS path length visible: 17 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 3 Number of LACNIC addresses announced to Internet: 407552 Equivalent to 0 /8s, 6 /16s and 56 /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: 866 Total AfriNIC prefixes after maximum aggregation: 164 AfriNIC Deaggregation factor: 5.28 Prefixes being announced from the AfriNIC address blocks: 866 Unique aggregates announced from the AfriNIC address blocks: 265 AfriNIC Region origin ASes present in the Internet Routing Table: 27 AfriNIC Prefixes per ASN: 32.07 AfriNIC Region origin ASes announcing only one prefix: 6 AfriNIC Region transit ASes present in the Internet Routing Table: 9 Average AfriNIC Region AS path length visible: 5.4 Max AfriNIC Region AS path length visible: 11 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 9 Number of AfriNIC addresses announced to Internet: 2505472 Equivalent to 0 /8s, 38 /16s and 59 /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 7497 430 182 24 CSTNET-AS-AP Computer Network Informati 1237 185 74 135 KREONET-AS-KR KISTI, KR 7575 176 329 122 AARNET-AS-AP Australian Academic and Re 4538 127 4192 72 ERX-CERNET-BKB China Education and Rese 55824 114 18 11 NKN-CORE-NW NKN Core Network, IN 4621 80 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 1659 55 1466 35 ERX-TANET-ASN1 Taiwan Academic Network 2697 54 3 32 ERX-ERNET-AS Education and Research Net 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 7896 251 51 7 NU-AS, US 668 212 702 180 DNIC-AS-00668, US 376 203 178 152 RISQ-AS, CA 5786 200 16 1 UPRENET, PR 2152 147 507 86 CSUNET-NW, US 18558 135 18 4 NETBLK-RCOEK, US 2920 108 34 6 LACOE, US 21976 85 51 18 NJEDGE-NET, US 1736 80 16 1 MU-AS, US 3 77 496 15 MIT-GATEWAYS, 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 680 280 1950 246 DFN Verein zur Foerderung eines Deutsch 786 186 1774 183 JANET Jisc Services Limited, GB 559 115 550 106 SWITCH Peering requests: peering@switch 1103 98 1520 85 SURFNET-NL SURFnet, The Netherlands, NL 137 82 677 77 ASGARR Consortium GARR, IT 553 72 449 72 BELWUE BelWue-Koordination, DE 2200 67 647 61 FR-RENATER Reseau National de telecommu 2614 59 33 57 ROEDUNET, RO 1930 57 81 52 RCCN Fundacao para a Ciencia e a Tecnol 1653 53 167 50 SUNET SUNET Swedish University Network, 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 152 10 66 Universidad Juarez Autonoma de Tabasco, 28571 16 23 4 UNIVERSIDADE DE SAO PAULO, BR 278 14 32 2 Universidad Nacional Autonoma de Mexico 1251 7 1 7 FUNDACAO DE AMPARO A PESQUISA DO ESTADO 52888 4 0 4 UNIVERSIDADE FEDERAL DE SAO CARLOS, BR 3640 3 14 3 C I C E S E, MX 52890 3 1 1 Centro Integrado de Telematica do Exerc 8151 2 0 2 Uninet S.A. de C.V., MX 18592 2 0 2 Corporacion Universitaria para el Desar 27922 2 1 2 Smithsonian Tropical Research Institute 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 356 319 74 TENET-1, ZA 36914 205 82 3 KENET-AS, KE 2561 73 5 32 EUN, EG 8094 50 48 4 PUKNET, ZA 327700 42 16 1 MoRENet, MZ 327687 37 28 3 RENU, UG 6879 24 2 9 ENSTINET-, EG 37182 13 8 1 TERNET, TZ 37501 11 49 6 UOFS, ZA 36982 8 33 8 UCT, 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 7497 430 182 24 CSTNET-AS-AP Computer Network Informati 2018 356 319 74 TENET-1, ZA 680 280 1950 246 DFN Verein zur Foerderung eines Deutsch 7896 251 51 7 NU-AS, US 668 212 702 180 DNIC-AS-00668, US 36914 205 82 3 KENET-AS, KE 376 203 178 152 RISQ-AS, CA 5786 200 16 1 UPRENET, PR 786 186 1774 183 JANET Jisc Services Limited, GB 1237 185 74 135 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 2018 356 282 TENET-1, ZA 7896 251 244 NU-AS, US 36914 205 202 KENET-AS, KE 5786 200 199 UPRENET, PR 18558 135 131 NETBLK-RCOEK, US 55824 114 103 NKN-CORE-NW NKN Core Network, IN 2920 108 102 LACOE, US 28391 152 86 Universidad Juarez Autonoma de Tabasco, MX 1736 80 79 MU-AS, US 4621 80 70 UNINET-AS-AP UNINET-, TH 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 22063 UNALLOCATED 153.10.0.0/16 2152 CSUNET-NW, US 19658 UNALLOCATED 199.27.241.0/24 11096 FLORIDANET, 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 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 /13:17 /14:34 /15:123 /16:1782 /17:324 /18:369 /19:500 /20:738 /21:758 /22:1185 /23:1304 /24:8550 /25:0 /26:0 /27:2 /28:5 /29:1 /30:1 /31:0 /32:0 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 36914 191 205 KENET-AS, KE 23024 53 56 OCDE, US 327700 36 42 MoRENet, MZ 25977 31 45 HCCS, US 27609 29 45 USC-UNIVERSITY-HOSPITAL, US 32440 29 44 LONI, US 40326 29 33 ECKERD-COLLEGE, US 200521 29 48 SEAP-AGE, ES 30220 25 26 SWTELCOOP, US 36794 24 26 SCOCA, US Complete listing at https://bgp.nsrc.org/REN/SingAREN/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:4 5:15 6:4 8:2 12:1 14:84 18:42 23:7 24:1 31:6 37:6 38:9 40:1 41:126 42:8 44:5 45:19 46:6 47:1 49:10 50:1 52:1 59:20 60:4 61:3 62:7 63:34 64:52 66:36 67:43 68:8 69:20 71:1 72:13 74:20 76:33 77:6 78:3 79:10 80:17 81:25 82:5 83:7 84:8 85:33 86:6 87:1 88:1 89:10 91:34 92:1 93:19 94:4 95:6 96:5 97:1 98:2 101:6 102:6 103:300 104:12 106:1 107:1 108:10 109:5 110:3 111:16 112:4 114:23 116:5 117:61 118:32 119:21 121:25 122:8 123:8 124:39 125:4 128:85 129:172 130:93 131:81 132:58 134:103 136:192 137:81 138:8 139:5 140:50 141:2 142:40 143:26 144:50 145:1 146:15 147:59 148:159 149:13 150:37 151:6 152:29 153:11 154:26 155:51 156:68 157:17 158:42 159:117 161:17 162:27 163:54 164:17 165:51 166:1 167:12 168:98 169:10 170:9 171:1 172:2 173:2 175:29 177:2 178:1 180:21 182:6 184:7 185:37 187:1 188:13 192:1239 193:250 194:135 195:90 196:149 197:111 198:450 199:272 200:12 201:1 202:457 203:413 204:318 205:167 206:185 207:169 208:55 209:114 210:183 211:14 212:41 213:4 214:7 216:86 217:14 218:25 219:3 220:17 222:5 223:2 End of report