IPv4 R&E Routing Table Report 23:05 GMT Tue 19 Apr, 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: 880394 Prefixes after maximum aggregation (per Origin AS): 334834 Deaggregation factor: 2.63 Unique aggregates announced (without unneeded subnets): 429740 Number of IPv4 prefixes with a valid ROA: 315067 Number of IPv4 prefixes with an invalid ROA: 1150 Number of IPv4 prefixes with no ROA: 564177 Total ASes present in the Internet Routing Table: 72836 Prefixes per ASN: 12.09 Origin-only ASes present in the Internet Routing Table: 62514 Origin ASes announcing only one prefix: 25706 Transit ASes present in the Internet Routing Table: 10322 Transit-only ASes present in the Internet Routing Table: 374 Average AS path length visible in the Internet Routing Table: 4.5 Max AS path length visible: 65 Max AS path prepend of ASN (267602) 58 Prefixes from unregistered ASNs in the Routing Table: 881 Number of instances of unregistered ASNs: 886 Number of 32-bit ASNs allocated by the RIRs: 39128 Number of 32-bit ASNs visible in the Routing Table: 32457 Prefixes from 32-bit ASNs in the Routing Table: 152760 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: 517 Number of addresses announced to Internet: 3066616576 Equivalent to 182 /8s, 200 /16s and 219 /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: 295706 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 229041 Total APNIC prefixes after maximum aggregation: 65941 APNIC Deaggregation factor: 3.47 Prefixes being announced from the APNIC address blocks: 223916 Unique aggregates announced from the APNIC address blocks: 94524 APNIC Region origin ASes present in the Internet Routing Table: 12479 APNIC Prefixes per ASN: 17.94 APNIC Region origin ASes announcing only one prefix: 3547 APNIC Region transit ASes present in the Internet Routing Table: 1708 Average APNIC Region AS path length visible: 4.1 Max APNIC Region AS path length visible: 27 Number of APNIC region 32-bit ASNs visible in the Routing Table: 7744 Number of APNIC addresses announced to Internet: 773349632 Equivalent to 46 /8s, 24 /16s and 97 /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: 259401 Total ARIN prefixes after maximum aggregation: 119402 ARIN Deaggregation factor: 2.17 Prefixes being announced from the ARIN address blocks: 259508 Unique aggregates announced from the ARIN address blocks: 124363 ARIN Region origin ASes present in the Internet Routing Table: 18932 ARIN Prefixes per ASN: 13.71 ARIN Region origin ASes announcing only one prefix: 6901 ARIN Region transit ASes present in the Internet Routing Table: 1878 Average ARIN Region AS path length visible: 4.3 Max ARIN Region AS path length visible: 38 Number of ARIN region 32-bit ASNs visible in the Routing Table: 4434 Number of ARIN addresses announced to Internet: 1295190016 Equivalent to 77 /8s, 51 /16s and 8 /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: 248894 Total RIPE prefixes after maximum aggregation: 115867 RIPE Deaggregation factor: 2.15 Prefixes being announced from the RIPE address blocks: 246250 Unique aggregates announced from the RIPE address blocks: 150406 RIPE Region origin ASes present in the Internet Routing Table: 28107 RIPE Prefixes per ASN: 8.76 RIPE Region origin ASes announcing only one prefix: 12046 RIPE Region transit ASes present in the Internet Routing Table: 4014 Average RIPE Region AS path length visible: 4.6 Max RIPE Region AS path length visible: 34 Number of RIPE region 32-bit ASNs visible in the Routing Table: 10683 Number of RIPE addresses announced to Internet: 714102016 Equivalent to 42 /8s, 144 /16s and 85 /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: 114339 Total LACNIC prefixes after maximum aggregation: 27480 LACNIC Deaggregation factor: 4.16 Prefixes being announced from the LACNIC address blocks: 114230 Unique aggregates announced from the LACNIC address blocks: 48394 LACNIC Region origin ASes present in the Internet Routing Table: 10948 LACNIC Prefixes per ASN: 10.43 LACNIC Region origin ASes announcing only one prefix: 2652 LACNIC Region transit ASes present in the Internet Routing Table: 2217 Average LACNIC Region AS path length visible: 5.3 Max LACNIC Region AS path length visible: 65 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 8647 Number of LACNIC addresses announced to Internet: 176320000 Equivalent to 10 /8s, 130 /16s and 110 /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: 27838 Total AfriNIC prefixes after maximum aggregation: 5471 AfriNIC Deaggregation factor: 5.09 Prefixes being announced from the AfriNIC address blocks: 35973 Unique aggregates announced from the AfriNIC address blocks: 11628 AfriNIC Region origin ASes present in the Internet Routing Table: 1616 AfriNIC Prefixes per ASN: 22.26 AfriNIC Region origin ASes announcing only one prefix: 560 AfriNIC Region transit ASes present in the Internet Routing Table: 334 Average AfriNIC Region AS path length visible: 5.0 Max AfriNIC Region AS path length visible: 26 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 949 Number of AfriNIC addresses announced to Internet: 107353088 Equivalent to 6 /8s, 102 /16s and 20 /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 9222 8883 41 CHINAMOBILE-CN China Mobile Communicati 7545 5911 789 697 TPG-INTERNET-AP TPG Telecom Limited, AU 7552 3607 1330 19 VIETEL-AS-AP Viettel Group, VN 7713 3496 1038 51 TELKOMNET-AS-AP PT Telekomunikasi Indon 45899 3423 1880 56 VNPT-AS-VN VNPT Corp, VN 9498 2395 491 238 BBIL-AP BHARTI Airtel Ltd., IN 4766 2254 11119 595 KIXS-AS-KR Korea Telecom, KR 45090 2130 1438 79 TENCENT-NET-AP Shenzhen Tencent Compute 4755 2115 429 197 TATACOMM-AS TATA Communications formerl 24560 2048 855 376 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 6208 10266 2701 AMAZON-02, US 11492 4474 297 690 CABLEONE, US 22773 3931 3071 358 ASN-CXA-ALL-CCI-22773-RDC, US 7155 3900 264 31 VIASAT-SP-BACKBONE, US 16625 3621 1857 2555 AKAMAI-AS, US 6327 3430 1318 61 SHAW, CA 749 2882 50780 2138 DNIC-AS-00749, US 30036 2614 374 138 MEDIACOM-ENTERPRISE-BUSINESS, US 209 2522 4962 424 CENTURYLINK-US-LEGACY-QWEST, US 20115 2253 3042 494 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 6799 1730 147 UNI2-AS, ES 8551 4009 374 39 BEZEQ-INTERNATIONAL-AS Bezeqint Interne 20940 3912 3360 192 AKAMAI-ASN1, NL 39891 3819 220 34 ALJAWWALSTC-AS, SA 12389 2899 2273 906 ROSTELECOM-AS, RU 6849 2751 355 21 UKRTELNET, UA 9009 2464 245 1276 M247, GB 34984 2237 357 633 TELLCOM-AS, TR 58224 1803 931 602 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 10565 3392 560 Uninet S.A. de C.V., MX 10620 3467 518 757 Telmex Colombia S.A., CO 11830 2430 369 63 Instituto Costarricense de Electricidad 13999 1738 295 473 Mega Cable, S.A. de C.V., MX 6503 1454 355 524 Axtel, S.A.B. de C.V., MX 28573 1385 2333 253 CLARO S.A., BR 3816 1254 667 147 COLOMBIA TELECOMUNICACIONES S.A. ESP, C 6147 1085 369 21 Telefonica del Peru S.A.A., PE 11664 1021 191 448 Techtel LMDS Comunicaciones Interactiva 11172 961 133 63 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 1660 393 21 LINKdotNET-AS, EG 24835 1473 523 33 RAYA-AS, EG 36992 1314 1519 263 ETISALAT-MISR, EG 36903 1199 545 114 MT-MPLS, MA 29571 908 65 59 ORANGE-COTE-IVOIRE, CI 36935 773 520 42 Vodafone-, EG 6713 612 1863 34 IAM-AS, MA 15399 520 51 35 WANANCHI-, KE 37342 468 32 1 MOVITEL, MZ 23889 421 232 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 10565 3392 560 Uninet S.A. de C.V., MX 9808 9222 8883 41 CHINAMOBILE-CN China Mobile Communicati 12479 6799 1730 147 UNI2-AS, ES 16509 6208 10266 2701 AMAZON-02, US 7545 5911 789 697 TPG-INTERNET-AP TPG Telecom Limited, AU 11492 4474 297 690 CABLEONE, US 8551 4009 374 39 BEZEQ-INTERNATIONAL-AS Bezeqint Interne 22773 3931 3071 358 ASN-CXA-ALL-CCI-22773-RDC, US 20940 3912 3360 192 AKAMAI-ASN1, NL 7155 3900 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 9222 9181 CHINAMOBILE-CN China Mobile Communications Grou 12479 6799 6652 UNI2-AS, ES 7545 5911 5214 TPG-INTERNET-AP TPG Telecom Limited, AU 8551 4009 3970 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo 7155 3900 3869 VIASAT-SP-BACKBONE, US 39891 3819 3785 ALJAWWALSTC-AS, SA 11492 4474 3784 CABLEONE, US 20940 3912 3720 AKAMAI-ASN1, NL 7552 3607 3588 VIETEL-AS-AP Viettel Group, VN 22773 3931 3573 ASN-CXA-ALL-CCI-22773-RDC, US 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 32306 UNALLOCATED 8.46.80.0/24 3356 LEVEL3, US Complete listing at https://bgp.nsrc.org/REN/Singapore/data-badAS Advertised Unallocated Addresses -------------------------------- Unassigned Network ASN Information AS Name 23.141.0.0/24 Origin: 395350 UNASSIGNED 23.141.0.0/24 Transit: 11426 TWC-11426-CAROLINAS, US 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 41.57.124.0/23 Origin: 37442 UNASSIGNED 41.57.124.0/23 Transit: 37204 TELONE, ZW 41.57.124.0/24 Origin: 37442 UNASSIGNED 41.57.124.0/24 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 /10:39 /11:100 /12:303 /13:588 /14:1200 /15:2093 /16:13503 /17:8185 /18:13750 /19:24836 /20:42328 /21:50873 /22:107089 /23:94278 /24:521192 /25:0 /26:1 /27:0 /28:0 /29:1 /30:4 /31:0 /32:2 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 12479 5780 6799 UNI2-AS, ES 8151 4223 10565 Uninet S.A. de C.V., MX 8551 3475 4009 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo 11492 3380 4474 CABLEONE, US 6327 3243 3430 SHAW, CA 39891 3131 3819 ALJAWWALSTC-AS, SA 7155 2990 3900 VIASAT-SP-BACKBONE, US 22773 2937 3931 ASN-CXA-ALL-CCI-22773-RDC, US 6849 2613 2751 UKRTELNET, UA 30036 2270 2614 MEDIACOM-ENTERPRISE-BUSINESS, US Complete listing at https://bgp.nsrc.org/REN/Singapore/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:1924 2:1034 3:154 4:7 5:3784 6:103 7:5 8:1526 9:1 11:172 12:1707 13:294 14:2374 15:193 16:45 17:381 18:153 20:194 21:4 22:188 23:5603 24:2279 25:6 27:2599 29:19 31:2422 32:94 34:1 35:73 36:1780 37:4415 38:2792 39:733 40:153 41:3944 42:1086 43:2178 44:291 45:15951 46:4124 47:315 49:1673 50:1928 51:99 52:1411 53:1 54:363 55:708 56:8 57:59 58:1690 59:1115 60:957 61:2259 62:2480 63:1951 64:5490 65:2301 66:4806 67:2978 68:1197 69:4124 70:1340 71:657 72:3047 74:2658 75:1388 76:589 77:2174 78:1837 79:3115 80:1976 81:1603 82:1487 83:1202 84:1350 85:2894 86:706 87:1962 88:1094 89:3263 90:524 91:7611 92:1990 93:2589 94:3478 95:3863 96:1295 97:347 98:989 99:738 100:75 101:1285 102:2040 103:28790 104:4349 105:468 106:856 107:2514 108:822 109:4205 110:2054 111:3261 112:2026 113:1455 114:1485 115:1958 116:1879 117:2530 118:2334 119:1887 120:1668 121:1013 122:2538 123:2102 124:1535 125:2049 128:1169 129:1086 130:958 131:2045 132:793 133:373 134:1918 135:291 136:881 137:858 138:2442 139:1493 140:853 141:1380 142:1279 143:1470 144:1206 145:343 146:1788 147:1483 148:2221 149:1704 150:853 151:1083 152:1847 153:458 154:3515 155:1438 156:1769 157:1221 158:1035 159:2096 160:2465 161:1315 162:3449 163:1248 164:1627 165:1613 166:693 167:1736 168:3775 169:708 170:4440 171:827 172:3129 173:3077 174:1021 175:1143 176:3515 177:4609 178:3484 179:2008 180:2307 181:2937 182:3190 183:1950 184:2384 185:19452 186:4361 187:3643 188:3856 189:3175 190:8842 191:1326 192:10970 193:8582 194:6944 195:4936 196:2978 197:2414 198:5977 199:6020 200:7420 201:5671 202:10099 203:9979 204:4558 205:3384 206:3695 207:3358 208:4049 209:4646 210:4049 211:2341 212:3987 213:3417 214:1157 215:66 216:6431 217:2671 218:1251 219:406 220:1673 221:978 222:670 223:2118 End of report