IPv4 R&E Routing Table Report 23:05 GMT Fri 27 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: 903515 Prefixes after maximum aggregation (per Origin AS): 344328 Deaggregation factor: 2.62 Unique aggregates announced (without unneeded subnets): 445171 Number of IPv4 prefixes with a valid ROA: 370024 Number of IPv4 prefixes with an invalid ROA: 1517 Number of IPv4 prefixes with no ROA: 531974 Total ASes present in the Internet Routing Table: 73949 Prefixes per ASN: 12.22 Origin-only ASes present in the Internet Routing Table: 63516 Origin ASes announcing only one prefix: 26146 Transit ASes present in the Internet Routing Table: 10433 Transit-only ASes present in the Internet Routing Table: 431 Paths with bogon ASNs present in the IPv4 Routing Table: 26 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: 961 Number of instances of unregistered ASNs: 970 Number of 32-bit ASNs allocated by the RIRs: 41135 Number of 32-bit ASNs visible in the Routing Table: 34062 Prefixes from 32-bit ASNs in the Routing Table: 166103 Number of bogon 32-bit ASNs visible in the Routing Table: 24 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 519 Number of addresses announced to Internet: 3062125056 Equivalent to 182 /8s, 132 /16s and 82 /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: 303666 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 233730 Total APNIC prefixes after maximum aggregation: 68053 APNIC Deaggregation factor: 3.43 Prefixes being announced from the APNIC address blocks: 228791 Unique aggregates announced from the APNIC address blocks: 97566 APNIC Region origin ASes present in the Internet Routing Table: 13186 APNIC Prefixes per ASN: 17.35 APNIC Region origin ASes announcing only one prefix: 3833 APNIC Region transit ASes present in the Internet Routing Table: 1771 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: 8513 Number of APNIC addresses announced to Internet: 773213440 Equivalent to 46 /8s, 22 /16s and 77 /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: 266132 Total ARIN prefixes after maximum aggregation: 121063 ARIN Deaggregation factor: 2.20 Prefixes being announced from the ARIN address blocks: 268025 Unique aggregates announced from the ARIN address blocks: 129834 ARIN Region origin ASes present in the Internet Routing Table: 19018 ARIN Prefixes per ASN: 14.09 ARIN Region origin ASes announcing only one prefix: 6993 ARIN Region transit ASes present in the Internet Routing Table: 1895 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: 1285842688 Equivalent to 76 /8s, 164 /16s and 103 /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: 256018 Total RIPE prefixes after maximum aggregation: 120476 RIPE Deaggregation factor: 2.13 Prefixes being announced from the RIPE address blocks: 252475 Unique aggregates announced from the RIPE address blocks: 156216 RIPE Region origin ASes present in the Internet Routing Table: 28214 RIPE Prefixes per ASN: 8.95 RIPE Region origin ASes announcing only one prefix: 12039 RIPE Region transit ASes present in the Internet Routing Table: 3988 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: 10988 Number of RIPE addresses announced to Internet: 718535680 Equivalent to 42 /8s, 211 /16s and 252 /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: 117499 Total LACNIC prefixes after maximum aggregation: 28269 LACNIC Deaggregation factor: 4.16 Prefixes being announced from the LACNIC address blocks: 116669 Unique aggregates announced from the LACNIC address blocks: 49081 LACNIC Region origin ASes present in the Internet Routing Table: 11006 LACNIC Prefixes per ASN: 10.60 LACNIC Region origin ASes announcing only one prefix: 2679 LACNIC Region transit ASes present in the Internet Routing Table: 2267 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: 8779 Number of LACNIC addresses announced to Internet: 176189184 Equivalent to 10 /8s, 128 /16s and 111 /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: 29175 Total AfriNIC prefixes after maximum aggregation: 5723 AfriNIC Deaggregation factor: 5.10 Prefixes being announced from the AfriNIC address blocks: 37036 Unique aggregates announced from the AfriNIC address blocks: 12052 AfriNIC Region origin ASes present in the Internet Routing Table: 1717 AfriNIC Prefixes per ASN: 21.57 AfriNIC Region origin ASes announcing only one prefix: 602 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: 1063 Number of AfriNIC addresses announced to Internet: 108025344 Equivalent to 6 /8s, 112 /16s and 86 /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 5921 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 3108 1872 94 VNPT-AS-VN VNPT Corp, VN 9498 2717 499 238 BBIL-AP BHARTI Airtel Ltd., IN 24560 2362 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 7853 10712 2895 AMAZON-02, US 11492 4531 300 601 CABLEONE, US 7155 3895 265 33 VIASAT-SP-BACKBONE, US 22773 3691 3067 321 ASN-CXA-ALL-CCI-22773-RDC, US 6327 3501 1320 63 SHAW, CA 16625 3455 1772 2504 AKAMAI-AS, US 749 3023 50575 2290 DNIC-AS-00749, US 396982 2589 3496 365 GOOGLE-CLOUD-PLATFORM, US 7018 2586 24126 1568 ATT-INTERNET4, US 30036 2556 366 395 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 6975 1706 146 UNI2-AS, ES 39891 4561 269 58 ALJAWWALSTC-AS, SA 20940 4035 3399 168 AKAMAI-ASN1, NL 8551 3905 374 38 BEZEQ-INTERNATIONAL-AS Bezeqint Interne 12389 2890 2290 908 ROSTELECOM-AS, RU 9009 2710 257 1370 M247, RO 34984 2259 358 610 TELLCOM-AS, TR 6849 2197 339 19 UKRTELNET, UA 58224 1832 946 542 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 11076 3342 584 Uninet S.A. de C.V., MX 10620 3474 507 856 Telmex Colombia S.A., CO 11830 2262 369 64 Instituto Costarricense de Electricidad 13999 2229 367 594 Mega Cable, S.A. de C.V., MX 28573 1353 2329 257 Claro NXT Telecomunicacoes Ltda, BR 6503 1298 339 518 Axtel, S.A.B. de C.V., MX 3816 1290 742 155 COLOMBIA TELECOMUNICACIONES S.A. ESP, C 6147 1149 369 22 Telefonica del Peru S.A.A., PE 11664 1105 181 462 Techtel LMDS Comunicaciones Interactiva 26615 1017 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 1538 533 30 RAYA-AS, EG 24863 1501 393 21 LINKdotNET-AS, EG 36992 1337 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 527 54 46 WANANCHI-, KE 37342 494 32 1 MOVITEL, MZ 24757 492 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 11076 3342 584 Uninet S.A. de C.V., MX 9808 9436 8883 47 CHINAMOBILE-CN China Mobile Communicati 16509 7853 10712 2895 AMAZON-02, US 12479 6975 1706 146 UNI2-AS, ES 7545 5921 787 704 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4561 269 58 ALJAWWALSTC-AS, SA 11492 4531 300 601 CABLEONE, US 20940 4035 3399 168 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 6975 6829 UNI2-AS, ES 7545 5921 5217 TPG-INTERNET-AP TPG Telecom Limited, AU 16509 7853 4958 AMAZON-02, US 39891 4561 4503 ALJAWWALSTC-AS, SA 11492 4531 3930 CABLEONE, US 20940 4035 3867 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 /13:578 /14:1198 /15:2078 /16:13472 /17:8233 /18:13799 /19:24821 /20:42760 /21:50819 /22:108768 /23:96791 /24:539726 /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 6043 6975 UNI2-AS, ES 8151 5086 11076 Uninet S.A. de C.V., MX 39891 3552 4561 ALJAWWALSTC-AS, SA 11492 3446 4531 CABLEONE, US 8551 3370 3905 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo 6327 3309 3501 SHAW, CA 7155 2984 3895 VIASAT-SP-BACKBONE, US 22773 2726 3691 ASN-CXA-ALL-CCI-22773-RDC, US 30036 2213 2556 MEDIACOM-ENTERPRISE-BUSINESS, US 6849 2049 2197 UKRTELNET, UA Complete listing at https://bgp.nsrc.org/REN/Singapore/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:1626 2:1229 3:168 4:5 5:4117 6:112 7:5 8:1512 9:1 11:172 12:1586 13:376 14:2312 15:289 16:79 17:369 18:389 20:243 21:4 22:188 23:6045 24:2483 25:4 27:2647 29:19 31:2497 32:101 34:9 35:104 36:1897 37:4585 38:4035 39:833 40:154 41:3951 42:1044 43:2295 44:302 45:16375 46:4159 47:374 49:1734 50:1835 51:380 52:1551 54:395 55:860 56:8 57:80 58:1677 59:1113 60:1004 61:2424 62:2615 63:1939 64:5648 65:2317 66:4897 67:3043 68:1340 69:4134 70:1252 71:659 72:2967 74:2587 75:1457 76:598 77:2384 78:1824 79:3173 80:2078 81:1696 82:1484 83:1232 84:1490 85:2967 86:746 87:1948 88:1207 89:3550 90:597 91:7624 92:1998 93:2575 94:3499 95:3926 96:1328 97:347 98:1159 99:740 100:75 101:1294 102:2558 103:30819 104:4582 105:482 106:847 107:2525 108:912 109:4362 110:2083 111:3295 112:2042 113:1455 114:1607 115:2016 116:1873 117:2562 118:2289 119:1878 120:1739 121:1047 122:2585 123:2144 124:1559 125:2282 128:1248 129:1048 130:971 131:1982 132:829 133:406 134:1908 135:298 136:869 137:928 138:2556 139:1545 140:1142 141:1481 142:1415 143:1495 144:1194 145:350 146:1857 147:1556 148:2268 149:1882 150:862 151:1137 152:1943 153:479 154:3940 155:1403 156:1653 157:1295 158:1035 159:2261 160:2556 161:1462 162:3518 163:1470 164:1607 165:1669 166:830 167:1751 168:3857 169:915 170:4586 171:881 172:3503 173:2948 174:1022 175:1158 176:3684 177:4627 178:3549 179:2142 180:2408 181:3360 182:3242 183:1938 184:2340 185:19971 186:4700 187:3925 188:4075 189:3493 190:9069 191:1449 192:10940 193:8802 194:7209 195:5093 196:3093 197:2399 198:5901 199:6082 200:7679 201:5866 202:10228 203:10007 204:4589 205:3509 206:3801 207:3364 208:4072 209:4795 210:4157 211:2389 212:4058 213:3554 214:1095 215:56 216:6618 217:2633 218:1257 219:400 220:1778 221:968 222:665 223:2035 End of report