IPv4 R&E Routing Table Report 23:05 GMT Tue 24 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: 903252 Prefixes after maximum aggregation (per Origin AS): 344111 Deaggregation factor: 2.62 Unique aggregates announced (without unneeded subnets): 444997 Number of IPv4 prefixes with a valid ROA: 369488 Number of IPv4 prefixes with an invalid ROA: 1434 Number of IPv4 prefixes with no ROA: 532330 Total ASes present in the Internet Routing Table: 73915 Prefixes per ASN: 12.22 Origin-only ASes present in the Internet Routing Table: 63498 Origin ASes announcing only one prefix: 26137 Transit ASes present in the Internet Routing Table: 10417 Transit-only ASes present in the Internet Routing Table: 422 Paths with bogon ASNs present in the IPv4 Routing Table: 28 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: 948 Number of instances of unregistered ASNs: 957 Number of 32-bit ASNs allocated by the RIRs: 41111 Number of 32-bit ASNs visible in the Routing Table: 34028 Prefixes from 32-bit ASNs in the Routing Table: 166037 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: 488 Number of addresses announced to Internet: 3062511104 Equivalent to 182 /8s, 138 /16s and 54 /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: 303715 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 233649 Total APNIC prefixes after maximum aggregation: 68041 APNIC Deaggregation factor: 3.43 Prefixes being announced from the APNIC address blocks: 228759 Unique aggregates announced from the APNIC address blocks: 97797 APNIC Region origin ASes present in the Internet Routing Table: 13175 APNIC Prefixes per ASN: 17.36 APNIC Region origin ASes announcing only one prefix: 3829 APNIC Region transit ASes present in the Internet Routing Table: 1773 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: 8500 Number of APNIC addresses announced to Internet: 773172224 Equivalent to 46 /8s, 21 /16s and 172 /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: 266104 Total ARIN prefixes after maximum aggregation: 120973 ARIN Deaggregation factor: 2.20 Prefixes being announced from the ARIN address blocks: 268067 Unique aggregates announced from the ARIN address blocks: 129725 ARIN Region origin ASes present in the Internet Routing Table: 19019 ARIN Prefixes per ASN: 14.09 ARIN Region origin ASes announcing only one prefix: 6994 ARIN Region transit ASes present in the Internet Routing Table: 1889 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: 4719 Number of ARIN addresses announced to Internet: 1285835520 Equivalent to 76 /8s, 164 /16s and 75 /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: 255905 Total RIPE prefixes after maximum aggregation: 120391 RIPE Deaggregation factor: 2.13 Prefixes being announced from the RIPE address blocks: 252349 Unique aggregates announced from the RIPE address blocks: 156068 RIPE Region origin ASes present in the Internet Routing Table: 28212 RIPE Prefixes per ASN: 8.94 RIPE Region origin ASes announcing only one prefix: 12039 RIPE Region transit ASes present in the Internet Routing Table: 3986 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: 10984 Number of RIPE addresses announced to Internet: 719078144 Equivalent to 42 /8s, 220 /16s and 67 /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: 117485 Total LACNIC prefixes after maximum aggregation: 28238 LACNIC Deaggregation factor: 4.16 Prefixes being announced from the LACNIC address blocks: 116667 Unique aggregates announced from the LACNIC address blocks: 49016 LACNIC Region origin ASes present in the Internet Routing Table: 10998 LACNIC Prefixes per ASN: 10.61 LACNIC Region origin ASes announcing only one prefix: 2685 LACNIC Region transit ASes present in the Internet Routing Table: 2262 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: 8769 Number of LACNIC addresses announced to Internet: 176055040 Equivalent to 10 /8s, 126 /16s and 99 /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: 29161 Total AfriNIC prefixes after maximum aggregation: 5724 AfriNIC Deaggregation factor: 5.09 Prefixes being announced from the AfriNIC address blocks: 36922 Unique aggregates announced from the AfriNIC address blocks: 11990 AfriNIC Region origin ASes present in the Internet Routing Table: 1711 AfriNIC Prefixes per ASN: 21.58 AfriNIC Region origin ASes announcing only one prefix: 590 AfriNIC Region transit ASes present in the Internet Routing Table: 329 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: 1056 Number of AfriNIC addresses announced to Internet: 108091392 Equivalent to 6 /8s, 113 /16s and 88 /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 5932 787 703 TPG-INTERNET-AP TPG Telecom Limited, AU 7552 3634 1331 21 VIETEL-AS-AP Viettel Group, VN 7713 3520 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 2162 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 7828 10708 2905 AMAZON-02, US 11492 4531 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 3460 1778 2505 AKAMAI-AS, US 749 3024 50575 2291 DNIC-AS-00749, US 7018 2593 24128 1575 ATT-INTERNET4, US 396982 2583 3490 372 GOOGLE-CLOUD-PLATFORM, US 30036 2555 366 401 MEDIACOM-ENTERPRISE-BUSINESS, 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 6973 1705 145 UNI2-AS, ES 39891 4561 269 58 ALJAWWALSTC-AS, SA 20940 4035 3399 169 AKAMAI-ASN1, NL 8551 3907 374 38 BEZEQ-INTERNATIONAL-AS Bezeqint Interne 12389 2890 2290 908 ROSTELECOM-AS, RU 9009 2686 255 1353 M247, RO 34984 2258 358 610 TELLCOM-AS, TR 6849 2196 339 19 UKRTELNET, UA 58224 1829 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 11061 3340 588 Uninet S.A. de C.V., MX 10620 3474 507 856 Telmex Colombia S.A., CO 11830 2261 369 64 Instituto Costarricense de Electricidad 13999 2223 366 595 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 1149 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 24835 1513 533 29 RAYA-AS, EG 24863 1499 393 21 LINKdotNET-AS, EG 36992 1331 1517 277 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 529 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 11061 3340 588 Uninet S.A. de C.V., MX 9808 9436 8883 47 CHINAMOBILE-CN China Mobile Communicati 16509 7828 10708 2905 AMAZON-02, US 12479 6973 1705 145 UNI2-AS, ES 7545 5932 787 703 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4561 269 58 ALJAWWALSTC-AS, SA 11492 4531 300 601 CABLEONE, US 20940 4035 3399 169 AKAMAI-ASN1, NL 8551 3907 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 6973 6828 UNI2-AS, ES 7545 5932 5229 TPG-INTERNET-AP TPG Telecom Limited, AU 16509 7828 4923 AMAZON-02, US 39891 4561 4503 ALJAWWALSTC-AS, SA 11492 4531 3930 CABLEONE, US 8551 3907 3869 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo 20940 4035 3866 AKAMAI-ASN1, NL 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 /17:8234 /18:13790 /19:24829 /20:42785 /21:50851 /22:108773 /23:96793 /24:539395 /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 6041 6973 UNI2-AS, ES 8151 5072 11061 Uninet S.A. de C.V., MX 39891 3552 4561 ALJAWWALSTC-AS, SA 11492 3446 4531 CABLEONE, US 8551 3372 3907 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 2212 2555 MEDIACOM-ENTERPRISE-BUSINESS, US 6849 2048 2196 UKRTELNET, UA Complete listing at https://bgp.nsrc.org/REN/Singapore/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:1626 2:1230 3:168 4:5 5:4119 6:110 7:5 8:1521 9:1 11:172 12:1583 13:378 14:2319 15:286 16:79 17:369 18:385 20:243 21:4 22:188 23:6037 24:2477 25:4 27:2649 29:19 31:2496 32:101 34:9 35:104 36:1895 37:4606 38:4041 39:831 40:154 41:3944 42:1040 43:2297 44:302 45:16358 46:4161 47:374 49:1729 50:1884 51:380 52:1550 54:395 55:854 56:8 57:80 58:1677 59:1112 60:1005 61:2424 62:2617 63:1938 64:5641 65:2313 66:4900 67:3044 68:1346 69:4131 70:1252 71:660 72:2969 74:2584 75:1457 76:597 77:2378 78:1819 79:3172 80:2078 81:1681 82:1479 83:1229 84:1501 85:2965 86:744 87:1938 88:1214 89:3524 90:592 91:7626 92:1994 93:2575 94:3505 95:3925 96:1329 97:347 98:1160 99:739 100:75 101:1290 102:2563 103:30826 104:4581 105:483 106:846 107:2524 108:913 109:4319 110:2079 111:3296 112:2041 113:1462 114:1606 115:2016 116:1871 117:2562 118:2287 119:1877 120:1730 121:1041 122:2582 123:2146 124:1560 125:2279 128:1252 129:1045 130:973 131:1980 132:830 133:406 134:1907 135:299 136:875 137:929 138:2567 139:1544 140:1038 141:1481 142:1414 143:1473 144:1192 145:349 146:1848 147:1550 148:2273 149:1877 150:861 151:1135 152:1936 153:479 154:3919 155:1402 156:1650 157:1297 158:1039 159:2261 160:2554 161:1435 162:3534 163:1469 164:1586 165:1667 166:827 167:1755 168:3841 169:916 170:4578 171:895 172:3510 173:2975 174:1023 175:1159 176:3687 177:4664 178:3554 179:2143 180:2411 181:3368 182:3240 183:1938 184:2339 185:19983 186:4688 187:3927 188:4048 189:3485 190:9074 191:1445 192:10931 193:8813 194:7209 195:5105 196:3020 197:2408 198:5897 199:6083 200:7674 201:5869 202:10225 203:10006 204:4593 205:3509 206:3790 207:3364 208:4073 209:4795 210:4155 211:2388 212:4056 213:3546 214:1088 215:56 216:6611 217:2626 218:1257 219:400 220:1778 221:968 222:665 223:2032 End of report