IPv4 R&E Routing Table Report 23:05 GMT Sun 01 May, 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: 881745 Prefixes after maximum aggregation (per Origin AS): 335011 Deaggregation factor: 2.63 Unique aggregates announced (without unneeded subnets): 430367 Number of IPv4 prefixes with a valid ROA: 318595 Number of IPv4 prefixes with an invalid ROA: 1113 Number of IPv4 prefixes with no ROA: 562037 Total ASes present in the Internet Routing Table: 72892 Prefixes per ASN: 12.10 Origin-only ASes present in the Internet Routing Table: 62588 Origin ASes announcing only one prefix: 25713 Transit ASes present in the Internet Routing Table: 10304 Transit-only ASes present in the Internet Routing Table: 370 Average AS path length visible in the Internet Routing Table: 4.4 Max AS path length visible: 65 Max AS path prepend of ASN (267602) 58 Prefixes from unregistered ASNs in the Routing Table: 848 Number of instances of unregistered ASNs: 853 Number of 32-bit ASNs allocated by the RIRs: 39268 Number of 32-bit ASNs visible in the Routing Table: 32567 Prefixes from 32-bit ASNs in the Routing Table: 153319 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: 480 Number of addresses announced to Internet: 3066564352 Equivalent to 182 /8s, 200 /16s and 15 /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: 296406 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 228880 Total APNIC prefixes after maximum aggregation: 66053 APNIC Deaggregation factor: 3.47 Prefixes being announced from the APNIC address blocks: 223773 Unique aggregates announced from the APNIC address blocks: 94687 APNIC Region origin ASes present in the Internet Routing Table: 12531 APNIC Prefixes per ASN: 17.86 APNIC Region origin ASes announcing only one prefix: 3562 APNIC Region transit ASes present in the Internet Routing Table: 1716 Average APNIC Region AS path length visible: 4.0 Max APNIC Region AS path length visible: 33 Number of APNIC region 32-bit ASNs visible in the Routing Table: 7795 Number of APNIC addresses announced to Internet: 773375744 Equivalent to 46 /8s, 24 /16s and 199 /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: 260204 Total ARIN prefixes after maximum aggregation: 119464 ARIN Deaggregation factor: 2.18 Prefixes being announced from the ARIN address blocks: 260389 Unique aggregates announced from the ARIN address blocks: 124684 ARIN Region origin ASes present in the Internet Routing Table: 18944 ARIN Prefixes per ASN: 13.75 ARIN Region origin ASes announcing only one prefix: 6903 ARIN Region transit ASes present in the Internet Routing Table: 1873 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: 4458 Number of ARIN addresses announced to Internet: 1295411712 Equivalent to 77 /8s, 54 /16s and 106 /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: 249232 Total RIPE prefixes after maximum aggregation: 116042 RIPE Deaggregation factor: 2.15 Prefixes being announced from the RIPE address blocks: 246570 Unique aggregates announced from the RIPE address blocks: 150489 RIPE Region origin ASes present in the Internet Routing Table: 28108 RIPE Prefixes per ASN: 8.77 RIPE Region origin ASes announcing only one prefix: 12035 RIPE Region transit ASes present in the Internet Routing Table: 4005 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: 10709 Number of RIPE addresses announced to Internet: 713803264 Equivalent to 42 /8s, 139 /16s and 198 /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: 114609 Total LACNIC prefixes after maximum aggregation: 27358 LACNIC Deaggregation factor: 4.19 Prefixes being announced from the LACNIC address blocks: 114473 Unique aggregates announced from the LACNIC address blocks: 48503 LACNIC Region origin ASes present in the Internet Routing Table: 10949 LACNIC Prefixes per ASN: 10.46 LACNIC Region origin ASes announcing only one prefix: 2649 LACNIC Region transit ASes present in the Internet Routing Table: 2210 Average LACNIC Region AS path length visible: 5.2 Max LACNIC Region AS path length visible: 65 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 8648 Number of LACNIC addresses announced to Internet: 176354304 Equivalent to 10 /8s, 130 /16s and 244 /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: 27972 Total AfriNIC prefixes after maximum aggregation: 5436 AfriNIC Deaggregation factor: 5.15 Prefixes being announced from the AfriNIC address blocks: 36060 Unique aggregates announced from the AfriNIC address blocks: 11588 AfriNIC Region origin ASes present in the Internet Routing Table: 1623 AfriNIC Prefixes per ASN: 22.22 AfriNIC Region origin ASes announcing only one prefix: 564 AfriNIC Region transit ASes present in the Internet Routing Table: 323 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: 957 Number of AfriNIC addresses announced to Internet: 107347456 Equivalent to 6 /8s, 101 /16s and 254 /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 9138 8883 41 CHINAMOBILE-CN China Mobile Communicati 7545 5912 789 696 TPG-INTERNET-AP TPG Telecom Limited, AU 7552 3592 1330 19 VIETEL-AS-AP Viettel Group, VN 7713 3498 1039 53 TELKOMNET-AS-AP PT Telekomunikasi Indon 45899 3431 1880 56 VNPT-AS-VN VNPT Corp, VN 9498 2401 499 240 BBIL-AP BHARTI Airtel Ltd., IN 4766 2252 11119 595 KIXS-AS-KR Korea Telecom, KR 45090 2134 1438 79 TENCENT-NET-AP Shenzhen Tencent Compute 4755 2118 438 200 TATACOMM-AS TATA Communications formerl 24560 2054 855 379 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 6276 10277 2706 AMAZON-02, US 11492 4474 297 690 CABLEONE, US 22773 3933 3072 356 ASN-CXA-ALL-CCI-22773-RDC, US 7155 3901 264 31 VIASAT-SP-BACKBONE, US 16625 3592 1837 2538 AKAMAI-AS, US 6327 3431 1318 61 SHAW, CA 749 2882 50780 2138 DNIC-AS-00749, US 30036 2623 374 119 MEDIACOM-ENTERPRISE-BUSINESS, US 209 2519 4962 422 CENTURYLINK-US-LEGACY-QWEST, US 20115 2249 3051 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 6774 1730 150 UNI2-AS, ES 8551 4009 374 39 BEZEQ-INTERNATIONAL-AS Bezeqint Interne 20940 3926 3360 192 AKAMAI-ASN1, NL 39891 3819 220 34 ALJAWWALSTC-AS, SA 12389 2897 2273 908 ROSTELECOM-AS, RU 6849 2854 355 21 UKRTELNET, UA 9009 2485 249 1291 M247, GB 34984 2238 358 632 TELLCOM-AS, TR 58224 1817 931 616 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 10618 3392 562 Uninet S.A. de C.V., MX 10620 3473 519 741 Telmex Colombia S.A., CO 11830 2433 369 63 Instituto Costarricense de Electricidad 13999 1771 297 476 Mega Cable, S.A. de C.V., MX 6503 1455 355 526 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 1080 369 21 Telefonica del Peru S.A.A., PE 11664 1021 191 442 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 1654 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 914 65 59 ORANGE-COTE-IVOIRE, CI 36935 773 520 42 Vodafone-, EG 6713 612 1863 34 IAM-AS, MA 15399 512 51 33 WANANCHI-, KE 37342 467 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 10618 3392 562 Uninet S.A. de C.V., MX 9808 9138 8883 41 CHINAMOBILE-CN China Mobile Communicati 12479 6774 1730 150 UNI2-AS, ES 16509 6276 10277 2706 AMAZON-02, US 7545 5912 789 696 TPG-INTERNET-AP TPG Telecom Limited, AU 11492 4474 297 690 CABLEONE, US 8551 4009 374 39 BEZEQ-INTERNATIONAL-AS Bezeqint Interne 22773 3933 3072 356 ASN-CXA-ALL-CCI-22773-RDC, US 20940 3926 3360 192 AKAMAI-ASN1, NL 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 9138 9097 CHINAMOBILE-CN China Mobile Communications Grou 12479 6774 6624 UNI2-AS, ES 7545 5912 5216 TPG-INTERNET-AP TPG Telecom Limited, AU 8551 4009 3970 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo 7155 3901 3870 VIASAT-SP-BACKBONE, US 39891 3819 3785 ALJAWWALSTC-AS, SA 11492 4474 3784 CABLEONE, US 20940 3926 3734 AKAMAI-ASN1, NL 22773 3933 3577 ASN-CXA-ALL-CCI-22773-RDC, US 7552 3592 3573 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 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 /10:40 /11:100 /12:303 /13:590 /14:1203 /15:2099 /16:13528 /17:8241 /18:13767 /19:24856 /20:42473 /21:50874 /22:107047 /23:94485 /24:522102 /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 5755 6774 UNI2-AS, ES 8151 4273 10618 Uninet S.A. de C.V., MX 8551 3475 4009 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo 11492 3380 4474 CABLEONE, US 6327 3244 3431 SHAW, CA 39891 3131 3819 ALJAWWALSTC-AS, SA 7155 2991 3901 VIASAT-SP-BACKBONE, US 22773 2940 3933 ASN-CXA-ALL-CCI-22773-RDC, US 6849 2710 2854 UKRTELNET, UA 30036 2279 2623 MEDIACOM-ENTERPRISE-BUSINESS, US Complete listing at https://bgp.nsrc.org/REN/Singapore/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:1929 2:1035 3:154 4:7 5:3783 6:104 7:5 8:1529 9:1 11:172 12:1708 13:299 14:2371 15:195 16:45 17:385 18:160 20:191 21:4 22:188 23:5644 24:2283 25:6 27:2601 29:19 31:2411 32:93 34:1 35:73 36:1775 37:4421 38:2822 39:700 40:153 41:3962 42:1089 43:2175 44:303 45:15944 46:4115 47:315 49:1676 50:2159 51:100 52:1417 54:364 55:737 56:8 57:59 58:1696 59:1117 60:958 61:2248 62:2477 63:1951 64:5482 65:2318 66:4814 67:2968 68:1192 69:4149 70:1339 71:642 72:3047 74:2650 75:1387 76:591 77:2189 78:1851 79:3114 80:1980 81:1591 82:1492 83:1203 84:1353 85:2895 86:710 87:1964 88:1104 89:3288 90:520 91:7613 92:1996 93:2579 94:3503 95:3848 96:1307 97:350 98:990 99:737 100:75 101:1273 102:2065 103:28874 104:4358 105:466 106:857 107:2532 108:828 109:4205 110:2019 111:3234 112:2025 113:1472 114:1480 115:1971 116:1878 117:2514 118:2330 119:1854 120:1661 121:1017 122:2543 123:2094 124:1538 125:2053 128:1183 129:1092 130:958 131:2040 132:791 133:372 134:1908 135:288 136:877 137:848 138:2432 139:1497 140:854 141:1400 142:1287 143:1437 144:1207 145:343 146:1803 147:1466 148:2219 149:1718 150:845 151:1078 152:1848 153:458 154:3529 155:1424 156:1773 157:1229 158:1037 159:2126 160:2471 161:1264 162:3454 163:1257 164:1621 165:1612 166:699 167:1728 168:3772 169:836 170:4491 171:827 172:3139 173:3082 174:1024 175:1131 176:3515 177:4637 178:3500 179:2022 180:2316 181:2954 182:3207 183:1953 184:2386 185:19453 186:4345 187:3693 188:3854 189:3198 190:8867 191:1325 192:10969 193:8592 194:6977 195:4947 196:3000 197:2411 198:5975 199:6024 200:7399 201:5698 202:10092 203:9994 204:4540 205:3432 206:3691 207:3345 208:4034 209:4648 210:4056 211:2341 212:4010 213:3427 214:1157 215:67 216:6427 217:2659 218:1248 219:404 220:1672 221:977 222:670 223:2110 End of report