IPv4 R&E Routing Table Report 20:00 GMT Thu 01 Dec, 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: 5518 Prefixes after maximum aggregation (per Origin AS): 3998 Deaggregation factor: 1.38 Unique aggregates announced (without unneeded subnets): 4210 Number of IPv4 prefixes with a valid ROA: 2284 Number of IPv4 prefixes with an invalid ROA: 3 Number of IPv4 prefixes with no ROA: 3231 Total ASes present in the Internet Routing Table: 954 Prefixes per ASN: 5.78 Origin-only ASes present in the Internet Routing Table: 826 Origin ASes announcing only one prefix: 425 Transit ASes present in the Internet Routing Table: 128 Transit-only ASes present in the Internet Routing Table: 18 Paths with bogon ASNs present in the IPv4 Routing Table: 0 Average AS path length visible in the Internet Routing Table: 3.5 Max AS path length visible: 12 Max AS path prepend of ASN ( 20537) 9 Prefixes from unregistered ASNs in the Routing Table: 0 Number of instances of unregistered ASNs: 0 Number of 32-bit ASNs allocated by the RIRs: 40752 Number of 32-bit ASNs visible in the Routing Table: 234 Prefixes from 32-bit ASNs in the Routing Table: 562 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: 77687808 Equivalent to 4 /8s, 161 /16s and 108 /24s Percentage of available address space announced: 2.1 Percentage of allocated address space announced: 2.1 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: 873 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 1611 Total APNIC prefixes after maximum aggregation: 1084 APNIC Deaggregation factor: 1.49 Prefixes being announced from the APNIC address blocks: 1612 Unique aggregates announced from the APNIC address blocks: 1250 APNIC Region origin ASes present in the Internet Routing Table: 227 APNIC Prefixes per ASN: 7.10 APNIC Region origin ASes announcing only one prefix: 107 APNIC Region transit ASes present in the Internet Routing Table: 14 Average APNIC Region AS path length visible: 2.7 Max APNIC Region AS path length visible: 8 Number of APNIC region 32-bit ASNs visible in the Routing Table: 69 Number of APNIC addresses announced to Internet: 18577152 Equivalent to 1 /8s, 27 /16s and 119 /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: 75 Total ARIN prefixes after maximum aggregation: 24 ARIN Deaggregation factor: 3.12 Prefixes being announced from the ARIN address blocks: 82 Unique aggregates announced from the ARIN address blocks: 33 ARIN Region origin ASes present in the Internet Routing Table: 12 ARIN Prefixes per ASN: 6.83 ARIN Region origin ASes announcing only one prefix: 5 ARIN Region transit ASes present in the Internet Routing Table: 5 Average ARIN Region AS path length visible: 3.4 Max ARIN Region AS path length visible: 6 Number of ARIN region 32-bit ASNs visible in the Routing Table: 2 Number of ARIN addresses announced to Internet: 525312 Equivalent to 0 /8s, 8 /16s and 4 /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: 3361 Total RIPE prefixes after maximum aggregation: 2820 RIPE Deaggregation factor: 1.19 Prefixes being announced from the RIPE address blocks: 3351 Unique aggregates announced from the RIPE address blocks: 2831 RIPE Region origin ASes present in the Internet Routing Table: 652 RIPE Prefixes per ASN: 5.14 RIPE Region origin ASes announcing only one prefix: 288 RIPE Region transit ASes present in the Internet Routing Table: 94 Average RIPE Region AS path length visible: 3.8 Max RIPE Region AS path length visible: 12 Number of RIPE region 32-bit ASNs visible in the Routing Table: 139 Number of RIPE addresses announced to Internet: 57669632 Equivalent to 3 /8s, 111 /16s and 248 /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: 2 Total LACNIC prefixes after maximum aggregation: 2 LACNIC Deaggregation factor: 1.00 Prefixes being announced from the LACNIC address blocks: 2 Unique aggregates announced from the LACNIC address blocks: 2 LACNIC Region origin ASes present in the Internet Routing Table: 2 LACNIC Prefixes per ASN: 1.00 LACNIC Region origin ASes announcing only one prefix: 2 LACNIC Region transit ASes present in the Internet Routing Table: 0 Average LACNIC Region AS path length visible: 5.5 Max LACNIC Region AS path length visible: 6 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 0 Number of LACNIC addresses announced to Internet: 512 Equivalent to 0 /8s, 0 /16s and 2 /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: 469 Total AfriNIC prefixes after maximum aggregation: 68 AfriNIC Deaggregation factor: 6.90 Prefixes being announced from the AfriNIC address blocks: 469 Unique aggregates announced from the AfriNIC address blocks: 92 AfriNIC Region origin ASes present in the Internet Routing Table: 43 AfriNIC Prefixes per ASN: 10.91 AfriNIC Region origin ASes announcing only one prefix: 23 AfriNIC Region transit ASes present in the Internet Routing Table: 9 Average AfriNIC Region AS path length visible: 4.5 Max AfriNIC Region AS path length visible: 12 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 24 Number of AfriNIC addresses announced to Internet: 914688 Equivalent to 0 /8s, 13 /16s and 245 /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 564 2139 455 SINET-AS Research Organization of Infor 58647 175 18 2 KAGAWAU-AS Kagawa University, JP 7575 171 329 119 AARNET-AS-AP Australian Academic and Re 23767 30 3 10 A-STAR-AS-AP A-STAR, SG 134096 27 3 18 EHEALTHNSW-AS-AP eHealth NSW, AU 6262 22 128 17 CSIRO Commonwealth Scientific and Indus 24436 22 27 18 UQ-AS-AP University of Queensland, AU 10148 19 20 18 UNIMELB-AS-AP The University of Melbour 38022 18 3 13 REANNZ-NZ-AP REANNZ National Research a 2506 16 52 6 SUPERCSI NTT WEST CHUGOKU CORPORATION, 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 6360 54 62 7 UNIVHAWAII, US 395400 4 16 2 UNIVERSITY-GUAM, GU 26100 3 1 3 NOAA-PACIFIC-REGION-CENTER, US 36599 3 0 2 SOFTETHER-AMERICA, US 112 2 0 2 UNASSIGNED 20144 2 0 1 IMRS, US 396690 2 0 2 VRSN-AC50-340, US 2534 1 0 1 ROCHE-RSN, US 5663 1 0 1 EDCNET, US 16538 1 0 1 PDC, 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 1935 249 DFN Verein zur Foerderung eines Deutsch 786 186 1775 183 JANET Jisc Services Limited, GB 559 115 550 106 SWITCH Peering requests: peering@switch 1103 100 1520 87 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 1930 65 81 60 RCCN Fundacao para a Ciencia e a Tecnol 2200 64 599 59 FR-RENATER Reseau National de telecommu 3267 57 63 42 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 10906 1 0 1 Nucleo de Inf. e Coord. do Ponto BR - N 14650 1 0 1 Nucleo de Inf. e Coord. do Ponto BR - N 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 246 82 3 KENET-AS, KE 327687 40 28 3 RENU, UG 37182 33 8 1 TERNET, TZ 327700 33 16 1 MoRENet, MZ 6879 24 2 9 ENSTINET-, EG 37074 13 8 2 UG-AS, GH 37654 10 1 6 RwEdNet-AS, RW 2561 7 0 5 EUN, EG 37215 6 8 1 MAREN, MW 31960 5 1 1 EMUNET, MZ 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 564 2139 455 SINET-AS Research Organization of Infor 680 281 1935 249 DFN Verein zur Foerderung eines Deutsch 36914 246 82 3 KENET-AS, KE 786 186 1775 183 JANET Jisc Services Limited, GB 58647 175 18 2 KAGAWAU-AS Kagawa University, JP 7575 171 329 119 AARNET-AS-AP Australian Academic and Re 559 115 550 106 SWITCH Peering requests: peering@switch 1103 100 1520 87 SURFNET-NL SURFnet, The Netherlands, NL 2614 95 27 75 ROEDUNET, RO 137 82 677 77 ASGARR Consortium GARR, IT 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 246 243 KENET-AS, KE 58647 175 173 KAGAWAU-AS Kagawa University, JP 7575 171 52 AARNET-AS-AP Australian Academic and Research N 6360 54 47 UNIVHAWAII, US 327687 40 37 RENU, UG 680 281 32 DFN Verein zur Foerderung eines Deutschen Forsc 37182 33 32 TERNET, TZ 327700 33 32 MoRENet, MZ 200521 53 29 SEAP-AGE, ES 1712 29 28 FR-RENATER-ENST Ecole Nationale Superieure des Complete listing at https://bgp.nsrc.org/REN/SingAREN/data-CIDRnet 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 /9:0 /10:0 /11:0 /12:3 /13:2 /14:9 /15:50 /16:886 /17:123 /18:100 /19:165 /20:223 /21:325 /22:499 /23:509 /24:2624 /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 233 246 KENET-AS, KE 37182 32 33 TERNET, TZ 200521 30 53 SEAP-AGE, ES 327700 30 33 MoRENet, MZ 3267 22 57 RUNNET, RU 31638 21 21 ASN-LEPIDA, IT 3233 19 29 ICI-ROTLD Romanian National R&D Network, RO 2614 17 95 ROEDUNET, RO 28949 15 15 TUSNET-AS 8, Kliment Ohridski St., BG 60187 14 35 LGFL-AS, GB Complete listing at https://bgp.nsrc.org/REN/SingAREN/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 5:15 24:2 31:7 37:1 41:145 44:4 45:12 46:5 49:4 62:8 77:9 78:3 79:10 80:17 81:28 82:8 83:6 84:8 85:41 86:3 87:1 88:1 89:10 91:38 92:1 93:4 94:4 95:4 102:9 103:79 109:3 123:8 125:1 128:35 129:8 130:5 131:15 132:6 133:146 134:6 136:1 137:23 138:8 143:6 145:2 146:2 147:4 148:6 150:5 151:2 152:4 153:12 154:5 155:4 156:8 157:2 159:1 160:25 161:4 163:19 171:1 180:2 185:43 188:13 192:598 193:274 194:143 195:66 196:18 197:149 199:2 200:2 202:217 203:164 205:3 210:3 212:42 213:5 217:11 219:5 End of report