IPv4 R&E Routing Table Report 23:05 GMT Wed 15 Feb, 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: 904954 Prefixes after maximum aggregation (per Origin AS): 344990 Deaggregation factor: 2.62 Unique aggregates announced (without unneeded subnets): 445922 Number of IPv4 prefixes with a valid ROA: 373549 Number of IPv4 prefixes with an invalid ROA: 1520 Number of IPv4 prefixes with no ROA: 529885 Total ASes present in the Internet Routing Table: 73922 Prefixes per ASN: 12.24 Origin-only ASes present in the Internet Routing Table: 63470 Origin ASes announcing only one prefix: 26088 Transit ASes present in the Internet Routing Table: 10452 Transit-only ASes present in the Internet Routing Table: 437 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: 1084 Number of instances of unregistered ASNs: 1094 Number of 32-bit ASNs allocated by the RIRs: 41177 Number of 32-bit ASNs visible in the Routing Table: 34094 Prefixes from 32-bit ASNs in the Routing Table: 166614 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: 608 Number of addresses announced to Internet: 3061656576 Equivalent to 182 /8s, 125 /16s and 44 /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: 304471 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 234266 Total APNIC prefixes after maximum aggregation: 68215 APNIC Deaggregation factor: 3.43 Prefixes being announced from the APNIC address blocks: 229168 Unique aggregates announced from the APNIC address blocks: 97772 APNIC Region origin ASes present in the Internet Routing Table: 13201 APNIC Prefixes per ASN: 17.36 APNIC Region origin ASes announcing only one prefix: 3824 APNIC Region transit ASes present in the Internet Routing Table: 1770 Average APNIC Region AS path length visible: 4.1 Max APNIC Region AS path length visible: 25 Number of APNIC region 32-bit ASNs visible in the Routing Table: 8540 Number of APNIC addresses announced to Internet: 773014528 Equivalent to 46 /8s, 19 /16s and 68 /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: 266424 Total ARIN prefixes after maximum aggregation: 121087 ARIN Deaggregation factor: 2.20 Prefixes being announced from the ARIN address blocks: 268497 Unique aggregates announced from the ARIN address blocks: 130142 ARIN Region origin ASes present in the Internet Routing Table: 19009 ARIN Prefixes per ASN: 14.12 ARIN Region origin ASes announcing only one prefix: 6993 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: 4722 Number of ARIN addresses announced to Internet: 1285472256 Equivalent to 76 /8s, 158 /16s and 192 /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: 256987 Total RIPE prefixes after maximum aggregation: 120927 RIPE Deaggregation factor: 2.13 Prefixes being announced from the RIPE address blocks: 253397 Unique aggregates announced from the RIPE address blocks: 156561 RIPE Region origin ASes present in the Internet Routing Table: 28191 RIPE Prefixes per ASN: 8.99 RIPE Region origin ASes announcing only one prefix: 12013 RIPE Region transit ASes present in the Internet Routing Table: 3974 Average RIPE Region AS path length visible: 4.6 Max RIPE Region AS path length visible: 32 Number of RIPE region 32-bit ASNs visible in the Routing Table: 10993 Number of RIPE addresses announced to Internet: 718339584 Equivalent to 42 /8s, 208 /16s and 254 /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: 116971 Total LACNIC prefixes after maximum aggregation: 28233 LACNIC Deaggregation factor: 4.14 Prefixes being announced from the LACNIC address blocks: 116189 Unique aggregates announced from the LACNIC address blocks: 48923 LACNIC Region origin ASes present in the Internet Routing Table: 10958 LACNIC Prefixes per ASN: 10.60 LACNIC Region origin ASes announcing only one prefix: 2657 LACNIC Region transit ASes present in the Internet Routing Table: 2278 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: 8772 Number of LACNIC addresses announced to Internet: 176374016 Equivalent to 10 /8s, 131 /16s and 65 /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: 29222 Total AfriNIC prefixes after maximum aggregation: 5755 AfriNIC Deaggregation factor: 5.08 Prefixes being announced from the AfriNIC address blocks: 37095 Unique aggregates announced from the AfriNIC address blocks: 12069 AfriNIC Region origin ASes present in the Internet Routing Table: 1722 AfriNIC Prefixes per ASN: 21.54 AfriNIC Region origin ASes announcing only one prefix: 601 AfriNIC Region transit ASes present in the Internet Routing Table: 336 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: 1067 Number of AfriNIC addresses announced to Internet: 108108544 Equivalent to 6 /8s, 113 /16s and 155 /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 9439 8883 48 CHINAMOBILE-CN China Mobile Communicati 7545 5824 787 693 TPG-INTERNET-AP TPG Telecom Limited, AU 7552 3660 1331 21 VIETEL-AS-AP Viettel Group, VN 7713 3544 1043 65 TELKOMNET-AS-AP PT Telekomunikasi Indon 45899 3377 1872 94 VNPT-AS-VN VNPT Corp, VN 9498 2777 499 238 BBIL-AP BHARTI Airtel Ltd., IN 24560 2355 836 442 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd 4766 2286 11250 586 KIXS-AS-KR Korea Telecom, KR 4755 2161 440 212 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 7988 10735 2858 AMAZON-02, US 11492 4537 300 594 CABLEONE, US 7155 3951 271 44 VIASAT-SP-BACKBONE, US 22773 3652 3064 286 ASN-CXA-ALL-CCI-22773-RDC, US 6327 3503 1320 63 SHAW, CA 16625 3322 1677 2424 AKAMAI-AS, US 749 3037 50571 2304 DNIC-AS-00749, US 7018 2610 24129 1585 ATT-INTERNET4, US 396982 2604 3583 352 GOOGLE-CLOUD-PLATFORM, US 30036 2553 366 373 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 7070 1706 146 UNI2-AS, ES 39891 4561 269 58 ALJAWWALSTC-AS, SA 20940 4012 3399 167 AKAMAI-ASN1, NL 8551 3891 370 37 BEZEQ-INTERNATIONAL-AS Bezeqint Interne 12389 2896 2292 910 ROSTELECOM-AS, RU 9009 2651 253 1377 M247, RO 34984 2265 359 609 TELLCOM-AS, TR 6849 2250 339 19 UKRTELNET, UA 58224 1846 949 545 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 11130 3348 587 Uninet S.A. de C.V., MX 10620 3476 507 862 Telmex Colombia S.A., CO 11830 2263 369 64 Instituto Costarricense de Electricidad 13999 2247 373 604 Mega Cable, S.A. de C.V., MX 28573 1352 2328 263 Claro NXT Telecomunicacoes Ltda, BR 6503 1297 339 518 Axtel, S.A.B. de C.V., MX 3816 1292 746 156 COLOMBIA TELECOMUNICACIONES S.A. ESP, C 6147 1149 370 22 Telefonica del Peru S.A.A., PE 11664 1094 179 458 Techtel LMDS Comunicaciones Interactiva 26615 1019 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 24835 1542 533 30 RAYA-AS, EG 24863 1501 393 21 LINKdotNET-AS, EG 36992 1348 1517 277 ETISALAT-MISR, EG 36903 1242 550 99 MT-MPLS, MA 29571 998 67 53 ORANGE-COTE-IVOIRE, CI 36935 886 520 42 Vodafone-, EG 6713 550 1861 34 IAM-AS, MA 15399 527 54 46 WANANCHI-, KE 24757 495 73 5 EthioNet-AS, ET 37342 494 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 11130 3348 587 Uninet S.A. de C.V., MX 9808 9439 8883 48 CHINAMOBILE-CN China Mobile Communicati 16509 7988 10735 2858 AMAZON-02, US 12479 7070 1706 146 UNI2-AS, ES 7545 5824 787 693 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4561 269 58 ALJAWWALSTC-AS, SA 11492 4537 300 594 CABLEONE, US 20940 4012 3399 167 AKAMAI-ASN1, NL 7155 3951 271 44 VIASAT-SP-BACKBONE, US 8551 3891 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 9439 9391 CHINAMOBILE-CN China Mobile Communications Grou 12479 7070 6924 UNI2-AS, ES 7545 5824 5131 TPG-INTERNET-AP TPG Telecom Limited, AU 16509 7988 5130 AMAZON-02, US 39891 4561 4503 ALJAWWALSTC-AS, SA 11492 4537 3943 CABLEONE, US 7155 3951 3907 VIASAT-SP-BACKBONE, US 8551 3891 3854 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo 20940 4012 3845 AKAMAI-ASN1, NL 7552 3660 3639 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 3507 UNALLOCATED 5.105.166.0/24 213035 AS-SERVERION Serverion B.V., 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 1618 UNALLOCATED 8.21.143.0/24 136796 CL-JP-AS CORELINK JAPAN, JP 393266 UNALLOCATED 8.23.52.0/24 46887 LIGHTOWER, 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 /14:1201 /15:2073 /16:13434 /17:8196 /18:13708 /19:24779 /20:42896 /21:50927 /22:108896 /23:96633 /24:541156 /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 6129 7070 UNI2-AS, ES 8151 5134 11130 Uninet S.A. de C.V., MX 39891 3552 4561 ALJAWWALSTC-AS, SA 11492 3452 4537 CABLEONE, US 8551 3363 3891 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo 6327 3311 3503 SHAW, CA 7155 3027 3951 VIASAT-SP-BACKBONE, US 22773 2705 3652 ASN-CXA-ALL-CCI-22773-RDC, US 30036 2210 2553 MEDIACOM-ENTERPRISE-BUSINESS, US 6849 2096 2250 UKRTELNET, UA Complete listing at https://bgp.nsrc.org/REN/Singapore/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:1650 2:1227 3:168 4:5 5:4328 6:113 7:5 8:1515 9:1 11:172 12:1587 13:392 14:2338 15:290 16:103 17:365 18:397 20:248 21:4 22:188 23:6049 24:2494 25:4 27:2520 29:19 31:2497 32:106 34:9 35:104 36:1915 37:4623 38:4159 39:838 40:154 41:4037 42:1056 43:2305 44:302 45:16357 46:4195 47:372 49:1732 50:1829 51:383 52:1574 54:398 55:870 56:8 57:87 58:1674 59:1113 60:987 61:2459 62:2632 63:1928 64:5658 65:2320 66:4918 67:3043 68:1350 69:4138 70:1250 71:661 72:2984 74:2594 75:1458 76:601 77:2394 78:1839 79:3176 80:2085 81:1721 82:1492 83:1235 84:1510 85:2985 86:757 87:1973 88:1232 89:3599 90:604 91:7664 92:2009 93:2592 94:3540 95:3955 96:1335 97:347 98:1161 99:744 100:75 101:1299 102:2604 103:30885 104:4560 105:478 106:844 107:2527 108:911 109:4390 110:2076 111:3292 112:2037 113:1483 114:1610 115:2014 116:1873 117:2552 118:2292 119:1924 120:1739 121:1048 122:2588 123:2138 124:1561 125:2343 128:1266 129:1058 130:984 131:1987 132:827 133:412 134:1903 135:314 136:862 137:932 138:2554 139:1542 140:1183 141:1475 142:1413 143:1476 144:1207 145:351 146:1868 147:1556 148:2260 149:1894 150:866 151:1140 152:1954 153:481 154:3897 155:1416 156:1669 157:1296 158:1002 159:2259 160:2544 161:1409 162:3519 163:1521 164:1570 165:1685 166:839 167:1734 168:3811 169:919 170:4568 171:883 172:3513 173:2971 174:1027 175:1160 176:3715 177:4545 178:3571 179:2151 180:2410 181:3394 182:3246 183:1929 184:2337 185:20030 186:4648 187:3940 188:4106 189:3497 190:9082 191:1446 192:10925 193:8813 194:7228 195:5108 196:3136 197:2259 198:5898 199:6087 200:7659 201:5879 202:10241 203:9986 204:4601 205:3517 206:3832 207:3386 208:4071 209:4808 210:4172 211:2384 212:4077 213:3552 214:1096 215:55 216:6597 217:2638 218:1256 219:400 220:1764 221:969 222:666 223:2120 End of report