IPv4 R&E Routing Table Report 23:05 GMT Sat 04 Jun, 2022 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: 883376 Prefixes after maximum aggregation (per Origin AS): 336045 Deaggregation factor: 2.63 Unique aggregates announced (without unneeded subnets): 433276 Number of IPv4 prefixes with a valid ROA: 328287 Number of IPv4 prefixes with an invalid ROA: 1315 Number of IPv4 prefixes with no ROA: 553774 Total ASes present in the Internet Routing Table: 72995 Prefixes per ASN: 12.10 Origin-only ASes present in the Internet Routing Table: 62674 Origin ASes announcing only one prefix: 25745 Transit ASes present in the Internet Routing Table: 10321 Transit-only ASes present in the Internet Routing Table: 379 Paths with bogon ASNs present in the IPv4 Routing Table: 39 Average AS path length visible in the Internet Routing Table: 4.4 Max AS path length visible: 60 Max AS path prepend of ASN ( 37447) 57 Prefixes from unregistered ASNs in the Routing Table: 861 Number of instances of unregistered ASNs: 865 Number of 32-bit ASNs allocated by the RIRs: 39554 Number of 32-bit ASNs visible in the Routing Table: 32709 Prefixes from 32-bit ASNs in the Routing Table: 153792 Number of bogon 32-bit ASNs visible in the Routing Table: 16 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 488 Number of addresses announced to Internet: 3064505344 Equivalent to 182 /8s, 168 /16s and 164 /24s Percentage of available address space announced: 82.8 Percentage of allocated address space announced: 82.8 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: 297229 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 228491 Total APNIC prefixes after maximum aggregation: 66074 APNIC Deaggregation factor: 3.46 Prefixes being announced from the APNIC address blocks: 223921 Unique aggregates announced from the APNIC address blocks: 94995 APNIC Region origin ASes present in the Internet Routing Table: 12597 APNIC Prefixes per ASN: 17.78 APNIC Region origin ASes announcing only one prefix: 3605 APNIC Region transit ASes present in the Internet Routing Table: 1747 Average APNIC Region AS path length visible: 4.0 Max APNIC Region AS path length visible: 24 Number of APNIC region 32-bit ASNs visible in the Routing Table: 7875 Number of APNIC addresses announced to Internet: 773090304 Equivalent to 46 /8s, 20 /16s and 108 /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: 261401 Total ARIN prefixes after maximum aggregation: 120000 ARIN Deaggregation factor: 2.18 Prefixes being announced from the ARIN address blocks: 261218 Unique aggregates announced from the ARIN address blocks: 126574 ARIN Region origin ASes present in the Internet Routing Table: 18962 ARIN Prefixes per ASN: 13.78 ARIN Region origin ASes announcing only one prefix: 6908 ARIN Region transit ASes present in the Internet Routing Table: 1866 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: 4491 Number of ARIN addresses announced to Internet: 1293025536 Equivalent to 77 /8s, 18 /16s and 1 /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: 250156 Total RIPE prefixes after maximum aggregation: 116489 RIPE Deaggregation factor: 2.15 Prefixes being announced from the RIPE address blocks: 247587 Unique aggregates announced from the RIPE address blocks: 151135 RIPE Region origin ASes present in the Internet Routing Table: 28099 RIPE Prefixes per ASN: 8.81 RIPE Region origin ASes announcing only one prefix: 12003 RIPE Region transit ASes present in the Internet Routing Table: 3996 Average RIPE Region AS path length visible: 4.5 Max RIPE Region AS path length visible: 34 Number of RIPE region 32-bit ASNs visible in the Routing Table: 10705 Number of RIPE addresses announced to Internet: 714030336 Equivalent to 42 /8s, 143 /16s and 61 /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: 114432 Total LACNIC prefixes after maximum aggregation: 27379 LACNIC Deaggregation factor: 4.18 Prefixes being announced from the LACNIC address blocks: 114245 Unique aggregates announced from the LACNIC address blocks: 48628 LACNIC Region origin ASes present in the Internet Routing Table: 10961 LACNIC Prefixes per ASN: 10.42 LACNIC Region origin ASes announcing only one prefix: 2663 LACNIC Region transit ASes present in the Internet Routing Table: 2218 Average LACNIC Region AS path length visible: 5.3 Max LACNIC Region AS path length visible: 55 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 8674 Number of LACNIC addresses announced to Internet: 176379648 Equivalent to 10 /8s, 131 /16s and 87 /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: 28035 Total AfriNIC prefixes after maximum aggregation: 5455 AfriNIC Deaggregation factor: 5.14 Prefixes being announced from the AfriNIC address blocks: 35917 Unique aggregates announced from the AfriNIC address blocks: 11538 AfriNIC Region origin ASes present in the Internet Routing Table: 1637 AfriNIC Prefixes per ASN: 21.94 AfriNIC Region origin ASes announcing only one prefix: 566 AfriNIC Region transit ASes present in the Internet Routing Table: 323 Average AfriNIC Region AS path length visible: 4.9 Max AfriNIC Region AS path length visible: 60 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 964 Number of AfriNIC addresses announced to Internet: 107701760 Equivalent to 6 /8s, 107 /16s and 102 /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 9199 8879 35 CHINAMOBILE-CN China Mobile Communicati 7545 5934 789 694 TPG-INTERNET-AP TPG Telecom Limited, AU 7552 3581 1330 19 VIETEL-AS-AP Viettel Group, VN 7713 3492 1039 53 TELKOMNET-AS-AP PT Telekomunikasi Indon 45899 3428 1880 56 VNPT-AS-VN VNPT Corp, VN 9498 2410 499 236 BBIL-AP BHARTI Airtel Ltd., IN 4766 2249 11119 595 KIXS-AS-KR Korea Telecom, KR 45090 2134 1438 79 TENCENT-NET-AP Shenzhen Tencent Compute 4755 2122 425 214 TATACOMM-AS TATA Communications formerl 24560 2057 852 385 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd 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 6591 10369 2688 AMAZON-02, US 11492 4520 300 649 CABLEONE, US 22773 3912 3070 363 ASN-CXA-ALL-CCI-22773-RDC, US 7155 3901 264 31 VIASAT-SP-BACKBONE, US 16625 3530 1818 2527 AKAMAI-AS, US 6327 3441 1319 64 SHAW, CA 749 2964 50743 2220 DNIC-AS-00749, US 30036 2621 373 184 MEDIACOM-ENTERPRISE-BUSINESS, US 209 2437 4961 418 CENTURYLINK-US-LEGACY-QWEST, US 20115 2248 3050 492 CHARTER-20115, 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 6822 1730 150 UNI2-AS, ES 8551 3992 374 39 BEZEQ-INTERNATIONAL-AS Bezeqint Interne 20940 3967 3360 193 AKAMAI-ASN1, NL 39891 3833 224 42 ALJAWWALSTC-AS, SA 12389 2896 2273 906 ROSTELECOM-AS, RU 6849 2874 355 21 UKRTELNET, UA 9009 2477 246 1281 M247, GB 34984 2243 357 632 TELLCOM-AS, TR 58224 1843 938 617 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 10635 3400 558 Uninet S.A. de C.V., MX 10620 3486 519 735 Telmex Colombia S.A., CO 11830 2438 369 63 Instituto Costarricense de Electricidad 13999 1846 305 477 Mega Cable, S.A. de C.V., MX 6503 1437 355 525 Axtel, S.A.B. de C.V., MX 28573 1370 2334 255 CLARO S.A., BR 3816 1256 671 148 COLOMBIA TELECOMUNICACIONES S.A. ESP, C 6147 1077 369 21 Telefonica del Peru S.A.A., PE 11664 1024 192 443 Techtel LMDS Comunicaciones Interactiva 11172 958 133 61 Alestra, S. de R.L. de C.V., MX 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 1656 393 21 LINKdotNET-AS, EG 24835 1472 519 32 RAYA-AS, EG 36992 1314 1519 263 ETISALAT-MISR, EG 36903 1199 545 114 MT-MPLS, MA 29571 961 65 58 ORANGE-COTE-IVOIRE, CI 36935 777 520 42 Vodafone-, EG 6713 612 1863 34 IAM-AS, MA 15399 513 51 34 WANANCHI-, KE 37342 464 32 1 MOVITEL, MZ 23889 420 232 16 MauritiusTelecom, MU 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 10635 3400 558 Uninet S.A. de C.V., MX 9808 9199 8879 35 CHINAMOBILE-CN China Mobile Communicati 12479 6822 1730 150 UNI2-AS, ES 16509 6591 10369 2688 AMAZON-02, US 7545 5934 789 694 TPG-INTERNET-AP TPG Telecom Limited, AU 11492 4520 300 649 CABLEONE, US 8551 3992 374 39 BEZEQ-INTERNATIONAL-AS Bezeqint Interne 20940 3967 3360 193 AKAMAI-ASN1, NL 22773 3912 3070 363 ASN-CXA-ALL-CCI-22773-RDC, US 7155 3901 264 31 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 9199 9164 CHINAMOBILE-CN China Mobile Communications Grou 12479 6822 6672 UNI2-AS, ES 7545 5934 5240 TPG-INTERNET-AP TPG Telecom Limited, AU 8551 3992 3953 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo 16509 6591 3903 AMAZON-02, US 11492 4520 3871 CABLEONE, US 7155 3901 3870 VIASAT-SP-BACKBONE, US 39891 3833 3791 ALJAWWALSTC-AS, SA 20940 3967 3774 AKAMAI-ASN1, NL 7552 3581 3562 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 62828 UNALLOCATED 8.21.130.0/24 3356 LEVEL3, US 393266 UNALLOCATED 8.23.52.0/24 46887 LIGHTOWER, US 18604 UNALLOCATED 8.25.204.0/24 3356 LEVEL3, US 394936 UNALLOCATED 8.33.224.0/24 22442 HOU-PHONOSCOPE, US 54338 UNALLOCATED 8.33.241.0/24 6461 ZAYO-6461, US 395438 UNALLOCATED 8.42.206.0/24 3356 LEVEL3, US 395056 UNALLOCATED 8.45.133.0/24 3356 LEVEL3, US 17033 UNALLOCATED 8.48.225.0/24 3356 LEVEL3, US Complete listing at https://bgp.nsrc.org/REN/Singapore/data-badAS Advertised Unallocated Addresses -------------------------------- Unassigned Network ASN Information AS Name 23.136.232.0/24 Origin: 207556 SF-20220311, US 23.136.232.0/24 Transit: 53667 PONYNET, US 23.141.0.0/24 Origin: 395350 UNASSIGNED 23.141.0.0/24 Transit: 11426 TWC-11426-CAROLINAS, US 23.166.208.0/24 Origin: 398906 LUFTCLOUD-ASN-01, US 23.166.208.0/24 Transit: 132132 REPUBLICTELECOM-SG MyRepublic Ltd., SG 27.100.7.0/24 Origin: 56096 UNASSIGNED 27.100.7.0/24 Transit: 45455 TH-2S1N-AP Two S One N Co Ltd, Internet 41.57.124.0/22 Origin: 37442 UNASSIGNED 41.57.124.0/22 Transit: 37204 TELONE, ZW 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 /10:40 /11:99 /12:300 /13:588 /14:1199 /15:2089 /16:13481 /17:8234 /18:13720 /19:24776 /20:42645 /21:50750 /22:107111 /23:94683 /24:523626 /25:0 /26:1 /27:0 /28:0 /29:1 /30:4 /31:0 /32:0 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 12479 5797 6822 UNI2-AS, ES 8151 4362 10635 Uninet S.A. de C.V., MX 8551 3458 3992 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo 11492 3423 4520 CABLEONE, US 6327 3250 3441 SHAW, CA 39891 3145 3833 ALJAWWALSTC-AS, SA 7155 2991 3901 VIASAT-SP-BACKBONE, US 22773 2913 3912 ASN-CXA-ALL-CCI-22773-RDC, US 6849 2730 2874 UKRTELNET, UA 30036 2278 2621 MEDIACOM-ENTERPRISE-BUSINESS, US Complete listing at https://bgp.nsrc.org/REN/Singapore/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:1920 2:1019 3:156 4:6 5:3783 6:108 7:5 8:1527 9:1 11:172 12:1678 13:321 14:2372 15:206 16:42 17:385 18:171 20:213 21:4 22:188 23:5659 24:2311 25:6 27:2607 29:19 31:2443 32:92 34:4 35:86 36:1797 37:4460 38:2944 39:707 40:152 41:3961 42:1115 43:2180 44:289 45:15794 46:4136 47:297 49:1671 50:2164 51:108 52:1439 54:380 55:757 56:8 57:59 58:1689 59:1107 60:959 61:2254 62:2527 63:1934 64:5517 65:2332 66:4841 67:2974 68:1193 69:4160 70:1330 71:684 72:3054 74:2648 75:1392 76:577 77:2185 78:1845 79:3113 80:1996 81:1610 82:1497 83:1205 84:1343 85:2926 86:713 87:1972 88:1124 89:3309 90:530 91:7598 92:2011 93:2568 94:3470 95:3882 96:1310 97:349 98:1002 99:746 100:77 101:1271 102:2104 103:29111 104:4468 105:457 106:872 107:2526 108:833 109:4254 110:1973 111:3258 112:2034 113:1475 114:1474 115:1964 116:1890 117:2504 118:2328 119:1847 120:1668 121:1020 122:2512 123:2083 124:1531 125:2059 128:1195 129:1073 130:969 131:2043 132:763 133:378 134:1899 135:291 136:880 137:855 138:2422 139:1512 140:868 141:1418 142:1285 143:1441 144:1210 145:351 146:1805 147:1465 148:2201 149:1727 150:848 151:1077 152:1845 153:459 154:3536 155:1432 156:1721 157:1234 158:1048 159:2209 160:2534 161:1280 162:3455 163:1273 164:1624 165:1619 166:718 167:1734 168:3768 169:850 170:4450 171:829 172:3203 173:3106 174:1018 175:1133 176:3586 177:4625 178:3547 179:2080 180:2322 181:2943 182:3198 183:1951 184:2371 185:19529 186:4237 187:3793 188:3880 189:3290 190:8840 191:1291 192:10992 193:8609 194:6999 195:4921 196:3055 197:2389 198:5936 199:6030 200:7484 201:5713 202:10101 203:9979 204:4533 205:3422 206:3678 207:3327 208:4005 209:4648 210:4124 211:2333 212:4008 213:3391 214:1147 215:67 216:6463 217:2661 218:1269 219:407 220:1674 221:967 222:651 223:2115 End of report