IPv4 R&E Routing Table Report 23:05 GMT Mon 23 Jan, 2023 IPv4 BGP Table (Global) as seen at Singapore. Report Website: https://bgp.nsrc.org/REN Detailed Analysis: https://bgp.nsrc.org/REN/Singapore/ Analysis Summary ---------------- BGP routing table entries examined: 902986 Prefixes after maximum aggregation (per Origin AS): 343940 Deaggregation factor: 2.63 Unique aggregates announced (without unneeded subnets): 444929 Number of IPv4 prefixes with a valid ROA: 369223 Number of IPv4 prefixes with an invalid ROA: 1514 Number of IPv4 prefixes with no ROA: 532249 Total ASes present in the Internet Routing Table: 73952 Prefixes per ASN: 12.21 Origin-only ASes present in the Internet Routing Table: 63526 Origin ASes announcing only one prefix: 26147 Transit ASes present in the Internet Routing Table: 10426 Transit-only ASes present in the Internet Routing Table: 427 Paths with bogon ASNs present in the IPv4 Routing Table: 27 Average AS path length visible in the Internet Routing Table: 4.5 Max AS path length visible: 66 Max AS path prepend of ASN ( 37447) 64 Prefixes from unregistered ASNs in the Routing Table: 954 Number of instances of unregistered ASNs: 963 Number of 32-bit ASNs allocated by the RIRs: 41097 Number of 32-bit ASNs visible in the Routing Table: 34049 Prefixes from 32-bit ASNs in the Routing Table: 165971 Number of bogon 32-bit ASNs visible in the Routing Table: 26 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 501 Number of addresses announced to Internet: 3062559232 Equivalent to 182 /8s, 138 /16s and 242 /24s Percentage of available address space announced: 82.7 Percentage of allocated address space announced: 82.7 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: 303583 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 233661 Total APNIC prefixes after maximum aggregation: 68026 APNIC Deaggregation factor: 3.43 Prefixes being announced from the APNIC address blocks: 228766 Unique aggregates announced from the APNIC address blocks: 97798 APNIC Region origin ASes present in the Internet Routing Table: 13173 APNIC Prefixes per ASN: 17.37 APNIC Region origin ASes announcing only one prefix: 3823 APNIC Region transit ASes present in the Internet Routing Table: 1764 Average APNIC Region AS path length visible: 4.2 Max APNIC Region AS path length visible: 27 Number of APNIC region 32-bit ASNs visible in the Routing Table: 8497 Number of APNIC addresses announced to Internet: 773174784 Equivalent to 46 /8s, 21 /16s and 182 /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: 265998 Total ARIN prefixes after maximum aggregation: 120874 ARIN Deaggregation factor: 2.20 Prefixes being announced from the ARIN address blocks: 268006 Unique aggregates announced from the ARIN address blocks: 129646 ARIN Region origin ASes present in the Internet Routing Table: 19025 ARIN Prefixes per ASN: 14.09 ARIN Region origin ASes announcing only one prefix: 6997 ARIN Region transit ASes present in the Internet Routing Table: 1894 Average ARIN Region AS path length visible: 4.3 Max ARIN Region AS path length visible: 35 Number of ARIN region 32-bit ASNs visible in the Routing Table: 4721 Number of ARIN addresses announced to Internet: 1285825024 Equivalent to 76 /8s, 164 /16s and 34 /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: 255831 Total RIPE prefixes after maximum aggregation: 120356 RIPE Deaggregation factor: 2.13 Prefixes being announced from the RIPE address blocks: 252147 Unique aggregates announced from the RIPE address blocks: 156101 RIPE Region origin ASes present in the Internet Routing Table: 28229 RIPE Prefixes per ASN: 8.93 RIPE Region origin ASes announcing only one prefix: 12047 RIPE Region transit ASes present in the Internet Routing Table: 3983 Average RIPE Region AS path length visible: 4.6 Max RIPE Region AS path length visible: 38 Number of RIPE region 32-bit ASNs visible in the Routing Table: 10995 Number of RIPE addresses announced to Internet: 719096320 Equivalent to 42 /8s, 220 /16s and 138 /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: 117348 Total LACNIC prefixes after maximum aggregation: 28227 LACNIC Deaggregation factor: 4.16 Prefixes being announced from the LACNIC address blocks: 116525 Unique aggregates announced from the LACNIC address blocks: 48982 LACNIC Region origin ASes present in the Internet Routing Table: 11006 LACNIC Prefixes per ASN: 10.59 LACNIC Region origin ASes announcing only one prefix: 2683 LACNIC Region transit ASes present in the Internet Routing Table: 2275 Average LACNIC Region AS path length visible: 5.2 Max LACNIC Region AS path length visible: 48 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 8777 Number of LACNIC addresses announced to Internet: 176094720 Equivalent to 10 /8s, 126 /16s and 254 /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: 29194 Total AfriNIC prefixes after maximum aggregation: 5714 AfriNIC Deaggregation factor: 5.11 Prefixes being announced from the AfriNIC address blocks: 37041 Unique aggregates announced from the AfriNIC address blocks: 11995 AfriNIC Region origin ASes present in the Internet Routing Table: 1715 AfriNIC Prefixes per ASN: 21.60 AfriNIC Region origin ASes announcing only one prefix: 597 AfriNIC Region transit ASes present in the Internet Routing Table: 331 Average AfriNIC Region AS path length visible: 5.0 Max AfriNIC Region AS path length visible: 66 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1059 Number of AfriNIC addresses announced to Internet: 108080128 Equivalent to 6 /8s, 113 /16s and 44 /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 9808 9436 8883 47 CHINAMOBILE-CN China Mobile Communicati 7545 5942 787 704 TPG-INTERNET-AP TPG Telecom Limited, AU 7552 3634 1331 21 VIETEL-AS-AP Viettel Group, VN 7713 3519 1043 63 TELKOMNET-AS-AP PT Telekomunikasi Indon 45899 3107 1872 94 VNPT-AS-VN VNPT Corp, VN 9498 2716 499 238 BBIL-AP BHARTI Airtel Ltd., IN 24560 2360 848 437 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd 4766 2286 11250 588 KIXS-AS-KR Korea Telecom, KR 4755 2161 440 213 TATACOMM-AS TATA Communications formerl 45090 2147 1438 79 TENCENT-NET-AP Shenzhen Tencent Compute Complete listing at https://bgp.nsrc.org/REN/Singapore/data-ASnet-APNIC ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 16509 7816 10708 2916 AMAZON-02, US 11492 4530 300 601 CABLEONE, US 7155 3895 265 33 VIASAT-SP-BACKBONE, US 22773 3692 3067 322 ASN-CXA-ALL-CCI-22773-RDC, US 6327 3500 1320 63 SHAW, CA 16625 3465 1781 2509 AKAMAI-AS, US 749 3024 50575 2291 DNIC-AS-00749, US 396982 2581 3486 370 GOOGLE-CLOUD-PLATFORM, US 30036 2554 366 407 MEDIACOM-ENTERPRISE-BUSINESS, US 7018 2510 24121 1534 ATT-INTERNET4, US Complete listing at https://bgp.nsrc.org/REN/Singapore/data-ASnet-ARIN RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 12479 6968 1705 145 UNI2-AS, ES 39891 4561 269 58 ALJAWWALSTC-AS, SA 20940 4043 3399 170 AKAMAI-ASN1, NL 8551 3905 374 38 BEZEQ-INTERNATIONAL-AS Bezeqint Interne 12389 2891 2290 908 ROSTELECOM-AS, RU 9009 2691 255 1355 M247, RO 34984 2258 358 610 TELLCOM-AS, TR 6849 2200 339 20 UKRTELNET, UA 58224 1828 945 540 TCI, IR 13188 1610 100 27 TRIOLAN, UA Complete listing at https://bgp.nsrc.org/REN/Singapore/data-ASnet-RIPE LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 8151 11049 3340 585 Uninet S.A. de C.V., MX 10620 3472 507 854 Telmex Colombia S.A., CO 11830 2261 369 64 Instituto Costarricense de Electricidad 13999 2223 366 594 Mega Cable, S.A. de C.V., MX 28573 1351 2329 257 Claro NXT Telecomunicacoes Ltda, BR 6503 1298 339 518 Axtel, S.A.B. de C.V., MX 3816 1292 742 157 COLOMBIA TELECOMUNICACIONES S.A. ESP, C 6147 1151 369 22 Telefonica del Peru S.A.A., PE 11664 1137 186 463 Techtel LMDS Comunicaciones Interactiva 26615 1008 2466 43 TIM SA, BR Complete listing at https://bgp.nsrc.org/REN/Singapore/data-ASnet-LACNIC AfriNIC Region per AS prefix count summary ------------------------------------------ ASN No of nets /20 equiv MaxAgg Description 24863 1520 393 21 LINKdotNET-AS, EG 24835 1513 533 29 RAYA-AS, EG 36992 1331 1517 278 ETISALAT-MISR, EG 36903 1242 550 99 MT-MPLS, MA 29571 1009 67 47 ORANGE-COTE-IVOIRE, CI 36935 884 520 42 Vodafone-, EG 6713 611 1861 34 IAM-AS, MA 15399 527 54 46 WANANCHI-, KE 37342 494 32 1 MOVITEL, MZ 24757 493 73 5 EthioNet-AS, ET Complete listing at https://bgp.nsrc.org/REN/Singapore/data-ASnet-AFRINIC Global Per AS prefix count summary ---------------------------------- ASN No of nets /20 equiv MaxAgg Description 8151 11049 3340 585 Uninet S.A. de C.V., MX 9808 9436 8883 47 CHINAMOBILE-CN China Mobile Communicati 16509 7816 10708 2916 AMAZON-02, US 12479 6968 1705 145 UNI2-AS, ES 7545 5942 787 704 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4561 269 58 ALJAWWALSTC-AS, SA 11492 4530 300 601 CABLEONE, US 20940 4043 3399 170 AKAMAI-ASN1, NL 8551 3905 374 38 BEZEQ-INTERNATIONAL-AS Bezeqint Interne 7155 3895 265 33 VIASAT-SP-BACKBONE, US Complete listing at https://bgp.nsrc.org/REN/Singapore/data-ASnet Global Per AS Maximum Aggregation summary ----------------------------------------- ASN No of nets Net Savings Description 9808 9436 9389 CHINAMOBILE-CN China Mobile Communications Grou 12479 6968 6823 UNI2-AS, ES 7545 5942 5238 TPG-INTERNET-AP TPG Telecom Limited, AU 16509 7816 4900 AMAZON-02, US 39891 4561 4503 ALJAWWALSTC-AS, SA 11492 4530 3929 CABLEONE, US 20940 4043 3873 AKAMAI-ASN1, NL 8551 3905 3867 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo 7155 3895 3862 VIASAT-SP-BACKBONE, US 7552 3634 3613 VIETEL-AS-AP Viettel Group, VN Complete listing at https://bgp.nsrc.org/REN/Singapore/data-CIDRnet List of Unregistered Origin ASNs (Global) ----------------------------------------- Bad AS Designation Net Originated Transit AS Transit AS Name 398083 UNALLOCATED 5.133.124.0/24 399587 UT, US 33123 UNALLOCATED 8.10.69.0/24 11168 SCC, US 16641 UNALLOCATED 8.10.194.0/24 3356 LEVEL3, US 16641 UNALLOCATED 8.10.210.0/24 3356 LEVEL3, US 25674 UNALLOCATED 8.12.76.0/24 3356 LEVEL3, US 16641 UNALLOCATED 8.12.250.0/24 3356 LEVEL3, US 25674 UNALLOCATED 8.14.115.0/24 3356 LEVEL3, US 12169 UNALLOCATED 8.15.207.0/24 32787 PROLEXIC-TECHNOLOGIES-DDOS-M 25674 UNALLOCATED 8.19.146.0/24 3356 LEVEL3, US 53775 UNALLOCATED 8.20.88.0/24 7029 WINDSTREAM, US Complete listing at https://bgp.nsrc.org/REN/Singapore/data-badAS Advertised Unallocated Addresses -------------------------------- Unassigned Network ASN Information AS Name 23.131.185.0/24 Origin: 174 COGENT-174, US 23.131.185.0/24 Transit: 2914 NTT-LTD-2914, US 23.131.186.0/24 Origin: 174 COGENT-174, US 23.131.186.0/24 Transit: 2914 NTT-LTD-2914, US 23.131.187.0/24 Origin: 174 COGENT-174, US 23.131.187.0/24 Transit: 2914 NTT-LTD-2914, US 23.131.188.0/24 Origin: 174 COGENT-174, US 23.131.188.0/24 Transit: 2914 NTT-LTD-2914, US 23.136.112.0/24 Origin: 54835 UNASSIGNED 23.136.112.0/24 Transit: 21559 OSNET, PR Complete listing at https://bgp.nsrc.org/REN/Singapore/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 /8:16 /9:13 /10:38 /11:101 /12:295 /13:581 /14:1199 /15:2077 /16:13473 /17:8235 /18:13775 /19:24818 /20:42751 /21:50807 /22:108742 /23:96779 /24:539277 /25:0 /26:1 /27:1 /28:0 /29:1 /30:6 /31:0 /32:0 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 12479 6035 6968 UNI2-AS, ES 8151 5062 11049 Uninet S.A. de C.V., MX 39891 3552 4561 ALJAWWALSTC-AS, SA 11492 3445 4530 CABLEONE, US 8551 3370 3905 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo 6327 3308 3500 SHAW, CA 7155 2984 3895 VIASAT-SP-BACKBONE, US 22773 2727 3692 ASN-CXA-ALL-CCI-22773-RDC, US 30036 2211 2554 MEDIACOM-ENTERPRISE-BUSINESS, US 6849 2051 2200 UKRTELNET, UA Complete listing at https://bgp.nsrc.org/REN/Singapore/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:1626 2:1228 3:168 4:5 5:4116 6:111 7:5 8:1521 9:1 11:172 12:1583 13:377 14:2320 15:286 16:79 17:370 18:425 20:243 21:4 22:188 23:6033 24:2476 25:4 27:2649 29:19 31:2497 32:101 34:9 35:104 36:1895 37:4607 38:4035 39:831 40:155 41:3967 42:1040 43:2298 44:302 45:16339 46:4162 47:374 49:1728 50:1922 51:380 52:1548 54:393 55:856 56:8 57:79 58:1677 59:1113 60:1007 61:2420 62:2614 63:1938 64:5645 65:2313 66:4897 67:3044 68:1345 69:4101 70:1253 71:660 72:2971 74:2578 75:1463 76:591 77:2377 78:1828 79:3171 80:2076 81:1667 82:1478 83:1228 84:1505 85:2960 86:744 87:1936 88:1211 89:3450 90:592 91:7622 92:1989 93:2585 94:3515 95:3924 96:1328 97:345 98:1160 99:740 100:75 101:1291 102:2556 103:30831 104:4584 105:483 106:846 107:2525 108:915 109:4341 110:2073 111:3296 112:2041 113:1467 114:1606 115:2017 116:1873 117:2563 118:2288 119:1878 120:1729 121:1046 122:2580 123:2145 124:1559 125:2281 128:1250 129:1042 130:972 131:1979 132:830 133:406 134:1901 135:299 136:878 137:930 138:2557 139:1544 140:1037 141:1435 142:1413 143:1479 144:1192 145:349 146:1850 147:1548 148:2260 149:1867 150:861 151:1134 152:1936 153:478 154:3907 155:1408 156:1650 157:1298 158:1040 159:2262 160:2557 161:1435 162:3530 163:1466 164:1588 165:1666 166:806 167:1755 168:3829 169:916 170:4583 171:894 172:3501 173:2987 174:1023 175:1159 176:3684 177:4669 178:3556 179:2148 180:2408 181:3360 182:3241 183:1938 184:2340 185:19978 186:4671 187:3927 188:4060 189:3490 190:9046 191:1439 192:10930 193:8810 194:7191 195:5105 196:3104 197:2407 198:5926 199:6081 200:7691 201:5858 202:10215 203:10005 204:4596 205:3488 206:3793 207:3362 208:4075 209:4796 210:4154 211:2388 212:4062 213:3534 214:1082 215:56 216:6605 217:2630 218:1257 219:400 220:1780 221:968 222:665 223:2032 End of report