IPv4 R&E Routing Table Report 23:05 GMT Wed 08 Mar, 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: 906770 Prefixes after maximum aggregation (per Origin AS): 345409 Deaggregation factor: 2.63 Unique aggregates announced (without unneeded subnets): 445902 Number of IPv4 prefixes with a valid ROA: 376748 Number of IPv4 prefixes with an invalid ROA: 1629 Number of IPv4 prefixes with no ROA: 528393 Total ASes present in the Internet Routing Table: 73986 Prefixes per ASN: 12.26 Origin-only ASes present in the Internet Routing Table: 63529 Origin ASes announcing only one prefix: 26098 Transit ASes present in the Internet Routing Table: 10457 Transit-only ASes present in the Internet Routing Table: 436 Paths with bogon ASNs present in the IPv4 Routing Table: 29 Average AS path length visible in the Internet Routing Table: 4.5 Max AS path length visible: 91 Max AS path prepend of ASN (270548) 83 Prefixes from unregistered ASNs in the Routing Table: 1104 Number of instances of unregistered ASNs: 1120 Number of 32-bit ASNs allocated by the RIRs: 41375 Number of 32-bit ASNs visible in the Routing Table: 34204 Prefixes from 32-bit ASNs in the Routing Table: 167152 Number of bogon 32-bit ASNs visible in the Routing Table: 38 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 559 Number of addresses announced to Internet: 3062316544 Equivalent to 182 /8s, 135 /16s and 62 /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: 304836 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 234983 Total APNIC prefixes after maximum aggregation: 68141 APNIC Deaggregation factor: 3.45 Prefixes being announced from the APNIC address blocks: 229664 Unique aggregates announced from the APNIC address blocks: 97657 APNIC Region origin ASes present in the Internet Routing Table: 13239 APNIC Prefixes per ASN: 17.35 APNIC Region origin ASes announcing only one prefix: 3855 APNIC Region transit ASes present in the Internet Routing Table: 1781 Average APNIC Region AS path length visible: 4.2 Max APNIC Region AS path length visible: 25 Number of APNIC region 32-bit ASNs visible in the Routing Table: 8581 Number of APNIC addresses announced to Internet: 773117696 Equivalent to 46 /8s, 20 /16s and 215 /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: 266695 Total ARIN prefixes after maximum aggregation: 121216 ARIN Deaggregation factor: 2.20 Prefixes being announced from the ARIN address blocks: 268835 Unique aggregates announced from the ARIN address blocks: 130225 ARIN Region origin ASes present in the Internet Routing Table: 19001 ARIN Prefixes per ASN: 14.15 ARIN Region origin ASes announcing only one prefix: 6970 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: 36 Number of ARIN region 32-bit ASNs visible in the Routing Table: 4734 Number of ARIN addresses announced to Internet: 1285985536 Equivalent to 76 /8s, 166 /16s and 149 /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: 257505 Total RIPE prefixes after maximum aggregation: 121261 RIPE Deaggregation factor: 2.12 Prefixes being announced from the RIPE address blocks: 253816 Unique aggregates announced from the RIPE address blocks: 156635 RIPE Region origin ASes present in the Internet Routing Table: 28224 RIPE Prefixes per ASN: 8.99 RIPE Region origin ASes announcing only one prefix: 12006 RIPE Region transit ASes present in the Internet Routing Table: 3966 Average RIPE Region AS path length visible: 4.7 Max RIPE Region AS path length visible: 38 Number of RIPE region 32-bit ASNs visible in the Routing Table: 11054 Number of RIPE addresses announced to Internet: 718352128 Equivalent to 42 /8s, 209 /16s and 47 /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: 116978 Total LACNIC prefixes after maximum aggregation: 28209 LACNIC Deaggregation factor: 4.15 Prefixes being announced from the LACNIC address blocks: 116339 Unique aggregates announced from the LACNIC address blocks: 48887 LACNIC Region origin ASes present in the Internet Routing Table: 10974 LACNIC Prefixes per ASN: 10.60 LACNIC Region origin ASes announcing only one prefix: 2678 LACNIC Region transit ASes present in the Internet Routing Table: 2278 Average LACNIC Region AS path length visible: 5.3 Max LACNIC Region AS path length visible: 91 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 8772 Number of LACNIC addresses announced to Internet: 176379392 Equivalent to 10 /8s, 131 /16s and 86 /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: 29505 Total AfriNIC prefixes after maximum aggregation: 5781 AfriNIC Deaggregation factor: 5.10 Prefixes being announced from the AfriNIC address blocks: 37557 Unique aggregates announced from the AfriNIC address blocks: 12055 AfriNIC Region origin ASes present in the Internet Routing Table: 1715 AfriNIC Prefixes per ASN: 21.90 AfriNIC Region origin ASes announcing only one prefix: 589 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: 59 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1063 Number of AfriNIC addresses announced to Internet: 108079104 Equivalent to 6 /8s, 113 /16s and 40 /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 9452 8883 48 CHINAMOBILE-CN China Mobile Communicati 7545 5772 786 690 TPG-INTERNET-AP TPG Telecom Limited, AU 7552 3681 1331 21 VIETEL-AS-AP Viettel Group, VN 7713 3546 1043 65 TELKOMNET-AS-AP PT Telekomunikasi Indon 45899 3367 1872 94 VNPT-AS-VN VNPT Corp, VN 9498 2814 499 238 BBIL-AP BHARTI Airtel Ltd., IN 24560 2359 834 441 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd 4766 2300 11249 586 KIXS-AS-KR Korea Telecom, KR 4755 2173 440 217 TATACOMM-AS TATA Communications formerl 45090 2148 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 8080 10760 2868 AMAZON-02, US 11492 4503 298 637 CABLEONE, US 7155 3959 270 44 VIASAT-SP-BACKBONE, US 22773 3637 3064 288 ASN-CXA-ALL-CCI-22773-RDC, US 6327 3505 1320 64 SHAW, CA 16625 3215 1609 2378 AKAMAI-AS, US 749 3038 50552 2305 DNIC-AS-00749, US 396982 2621 3586 356 GOOGLE-CLOUD-PLATFORM, US 7018 2568 24120 1574 ATT-INTERNET4, US 30036 2522 362 440 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 7057 1705 149 UNI2-AS, ES 39891 4561 269 58 ALJAWWALSTC-AS, SA 20940 4039 3399 163 AKAMAI-ASN1, NL 8551 3898 370 37 BEZEQ-INTERNATIONAL-AS Bezeqint Interne 12389 2898 2292 911 ROSTELECOM-AS, RU 9009 2640 251 1380 M247, RO 34984 2267 359 610 TELLCOM-AS, TR 6849 2164 339 19 UKRTELNET, UA 58224 1846 949 546 TCI, IR 13188 1607 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 11075 3330 598 Uninet S.A. de C.V., MX 10620 3445 501 920 Telmex Colombia S.A., CO 13999 2274 370 604 Mega Cable, S.A. de C.V., MX 11830 2264 369 64 Instituto Costarricense de Electricidad 28573 1342 2325 254 Claro NXT Telecomunicacoes Ltda, BR 3816 1299 759 160 COLOMBIA TELECOMUNICACIONES S.A. ESP, C 6503 1299 339 514 Axtel, S.A.B. de C.V., MX 6147 1129 370 22 Telefonica del Peru S.A.A., PE 11664 1092 180 458 Techtel LMDS Comunicaciones Interactiva 26615 1029 2498 45 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 1550 393 19 LINKdotNET-AS, EG 24835 1544 533 30 RAYA-AS, EG 36992 1343 1518 275 ETISALAT-MISR, EG 36903 1242 550 99 MT-MPLS, MA 29571 1012 67 53 ORANGE-COTE-IVOIRE, CI 36935 868 520 42 Vodafone-, EG 6713 550 1861 34 IAM-AS, MA 15399 529 54 47 WANANCHI-, KE 24757 494 73 5 EthioNet-AS, ET 37342 493 32 1 MOVITEL, MZ 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 11075 3330 598 Uninet S.A. de C.V., MX 9808 9452 8883 48 CHINAMOBILE-CN China Mobile Communicati 16509 8080 10760 2868 AMAZON-02, US 12479 7057 1705 149 UNI2-AS, ES 7545 5772 786 690 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4561 269 58 ALJAWWALSTC-AS, SA 11492 4503 298 637 CABLEONE, US 20940 4039 3399 163 AKAMAI-ASN1, NL 7155 3959 270 44 VIASAT-SP-BACKBONE, US 8551 3898 370 37 BEZEQ-INTERNATIONAL-AS Bezeqint Interne 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 9452 9404 CHINAMOBILE-CN China Mobile Communications Grou 12479 7057 6908 UNI2-AS, ES 16509 8080 5212 AMAZON-02, US 7545 5772 5082 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4561 4503 ALJAWWALSTC-AS, SA 7155 3959 3915 VIASAT-SP-BACKBONE, US 20940 4039 3876 AKAMAI-ASN1, NL 11492 4503 3866 CABLEONE, US 8551 3898 3861 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo 7552 3681 3660 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 207994 UNALLOCATED 5.253.37.0/24 50673 SERVERIUS-AS, NL 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 16641 UNALLOCATED 8.12.250.0/24 3356 LEVEL3, US 12169 UNALLOCATED 8.15.207.0/24 32787 PROLEXIC-TECHNOLOGIES-DDOS-M 53775 UNALLOCATED 8.20.88.0/24 7029 WINDSTREAM, US 62828 UNALLOCATED 8.21.130.0/24 3356 LEVEL3, US 393266 UNALLOCATED 8.23.52.0/24 46887 LIGHTOWER, US 396894 UNALLOCATED 8.28.201.0/24 3356 LEVEL3, 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 /11:103 /12:299 /13:577 /14:1199 /15:2074 /16:13429 /17:8190 /18:13672 /19:24802 /20:42937 /21:50965 /22:108913 /23:96901 /24:542633 /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 6114 7057 UNI2-AS, ES 8151 5092 11075 Uninet S.A. de C.V., MX 39891 3552 4561 ALJAWWALSTC-AS, SA 11492 3417 4503 CABLEONE, US 8551 3370 3898 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo 6327 3313 3505 SHAW, CA 7155 3036 3959 VIASAT-SP-BACKBONE, US 22773 2690 3637 ASN-CXA-ALL-CCI-22773-RDC, US 30036 2179 2522 MEDIACOM-ENTERPRISE-BUSINESS, US 6849 2008 2164 UKRTELNET, UA Complete listing at https://bgp.nsrc.org/REN/Singapore/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:1669 2:1224 3:168 4:5 5:4320 6:117 7:6 8:1515 9:1 11:172 12:1579 13:395 14:2322 15:293 16:111 17:366 18:400 20:249 21:4 22:188 23:6107 24:2474 25:4 27:2476 29:19 31:2511 32:107 34:8 35:104 36:1926 37:4620 38:4324 39:806 40:151 41:4011 42:976 43:2308 44:309 45:16364 46:4160 47:374 49:1730 50:1818 51:386 52:1587 54:388 55:869 56:8 57:90 58:1670 59:1073 60:975 61:2459 62:2629 63:1934 64:5642 65:2317 66:4904 67:2997 68:1352 69:4127 70:1265 71:665 72:2975 74:2588 75:1457 76:600 77:2411 78:1839 79:3167 80:2069 81:1723 82:1507 83:1231 84:1512 85:3003 86:758 87:1958 88:1232 89:3594 90:608 91:7664 92:2020 93:2576 94:3536 95:3951 96:1327 97:331 98:1161 99:745 100:77 101:1292 102:2653 103:31013 104:4581 105:483 106:900 107:2559 108:934 109:4386 110:2062 111:3266 112:2041 113:1490 114:1620 115:2018 116:1898 117:2572 118:2278 119:1964 120:1742 121:1046 122:2585 123:2135 124:1543 125:2378 128:1276 129:1056 130:990 131:1997 132:825 133:421 134:1902 135:299 136:865 137:939 138:2548 139:1548 140:1195 141:1470 142:1425 143:1472 144:1209 145:355 146:1892 147:1530 148:2288 149:1919 150:921 151:1143 152:1959 153:485 154:4215 155:1425 156:1675 157:1285 158:1045 159:2265 160:2567 161:1446 162:3545 163:1481 164:1587 165:1696 166:846 167:1732 168:3787 169:923 170:4580 171:888 172:3514 173:2936 174:1014 175:1154 176:3723 177:4539 178:3625 179:2166 180:2396 181:3401 182:3313 183:1938 184:2346 185:20105 186:4677 187:3927 188:4104 189:3542 190:9093 191:1467 192:10940 193:8805 194:7231 195:5126 196:3156 197:2393 198:5895 199:6072 200:7686 201:5841 202:10285 203:10163 204:4585 205:3513 206:3780 207:3394 208:4062 209:4839 210:4175 211:2384 212:4103 213:3541 214:1097 215:57 216:6589 217:2647 218:1265 219:407 220:1756 221:970 222:674 223:2118 End of report