IPv4 R&E Routing Table Report 23:05 GMT Wed 25 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: 882671 Prefixes after maximum aggregation (per Origin AS): 335849 Deaggregation factor: 2.63 Unique aggregates announced (without unneeded subnets): 432611 Number of IPv4 prefixes with a valid ROA: 326552 Number of IPv4 prefixes with an invalid ROA: 1076 Number of IPv4 prefixes with no ROA: 555043 Total ASes present in the Internet Routing Table: 73012 Prefixes per ASN: 12.09 Origin-only ASes present in the Internet Routing Table: 62703 Origin ASes announcing only one prefix: 25759 Transit ASes present in the Internet Routing Table: 10309 Transit-only ASes present in the Internet Routing Table: 379 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: 888 Number of instances of unregistered ASNs: 891 Number of 32-bit ASNs allocated by the RIRs: 39460 Number of 32-bit ASNs visible in the Routing Table: 32683 Prefixes from 32-bit ASNs in the Routing Table: 153818 Number of bogon 32-bit ASNs visible in the Routing Table: 12 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 505 Number of addresses announced to Internet: 3064729856 Equivalent to 182 /8s, 172 /16s and 17 /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: 297053 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 228674 Total APNIC prefixes after maximum aggregation: 66151 APNIC Deaggregation factor: 3.46 Prefixes being announced from the APNIC address blocks: 223922 Unique aggregates announced from the APNIC address blocks: 94849 APNIC Region origin ASes present in the Internet Routing Table: 12582 APNIC Prefixes per ASN: 17.80 APNIC Region origin ASes announcing only one prefix: 3597 APNIC Region transit ASes present in the Internet Routing Table: 1727 Average APNIC Region AS path length visible: 4.0 Max APNIC Region AS path length visible: 32 Number of APNIC region 32-bit ASNs visible in the Routing Table: 7851 Number of APNIC addresses announced to Internet: 773293056 Equivalent to 46 /8s, 23 /16s and 132 /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: 260796 Total ARIN prefixes after maximum aggregation: 119847 ARIN Deaggregation factor: 2.18 Prefixes being announced from the ARIN address blocks: 260753 Unique aggregates announced from the ARIN address blocks: 126055 ARIN Region origin ASes present in the Internet Routing Table: 18981 ARIN Prefixes per ASN: 13.74 ARIN Region origin ASes announcing only one prefix: 6924 ARIN Region transit ASes present in the Internet Routing Table: 1861 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: 1293099008 Equivalent to 77 /8s, 19 /16s and 32 /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: 249933 Total RIPE prefixes after maximum aggregation: 116361 RIPE Deaggregation factor: 2.15 Prefixes being announced from the RIPE address blocks: 247324 Unique aggregates announced from the RIPE address blocks: 151022 RIPE Region origin ASes present in the Internet Routing Table: 28117 RIPE Prefixes per ASN: 8.80 RIPE Region origin ASes announcing only one prefix: 12016 RIPE Region transit ASes present in the Internet Routing Table: 4004 Average RIPE Region AS path length visible: 4.5 Max RIPE Region AS path length visible: 33 Number of RIPE region 32-bit ASNs visible in the Routing Table: 10710 Number of RIPE addresses announced to Internet: 713973504 Equivalent to 42 /8s, 142 /16s and 95 /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: 114541 Total LACNIC prefixes after maximum aggregation: 27361 LACNIC Deaggregation factor: 4.19 Prefixes being announced from the LACNIC address blocks: 114361 Unique aggregates announced from the LACNIC address blocks: 48607 LACNIC Region origin ASes present in the Internet Routing Table: 10957 LACNIC Prefixes per ASN: 10.44 LACNIC Region origin ASes announcing only one prefix: 2660 LACNIC Region transit ASes present in the Internet Routing Table: 2205 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: 8671 Number of LACNIC addresses announced to Internet: 176441088 Equivalent to 10 /8s, 132 /16s and 71 /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: 27839 Total AfriNIC prefixes after maximum aggregation: 5466 AfriNIC Deaggregation factor: 5.09 Prefixes being announced from the AfriNIC address blocks: 35806 Unique aggregates announced from the AfriNIC address blocks: 11657 AfriNIC Region origin ASes present in the Internet Routing Table: 1631 AfriNIC Prefixes per ASN: 21.95 AfriNIC Region origin ASes announcing only one prefix: 562 AfriNIC Region transit ASes present in the Internet Routing Table: 333 Average AfriNIC Region AS path length visible: 4.9 Max AfriNIC Region AS path length visible: 39 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 960 Number of AfriNIC addresses announced to Internet: 107635200 Equivalent to 6 /8s, 106 /16s and 98 /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 9168 8883 40 CHINAMOBILE-CN China Mobile Communicati 7545 5892 789 694 TPG-INTERNET-AP TPG Telecom Limited, AU 7552 3559 1330 19 VIETEL-AS-AP Viettel Group, VN 7713 3492 1039 53 TELKOMNET-AS-AP PT Telekomunikasi Indon 45899 3426 1880 56 VNPT-AS-VN VNPT Corp, VN 9498 2409 499 236 BBIL-AP BHARTI Airtel Ltd., IN 4766 2251 11119 595 KIXS-AS-KR Korea Telecom, KR 45090 2134 1438 79 TENCENT-NET-AP Shenzhen Tencent Compute 4755 2122 438 204 TATACOMM-AS TATA Communications formerl 24560 2047 853 389 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 6446 10355 2822 AMAZON-02, US 11492 4514 299 658 CABLEONE, US 22773 3922 3072 363 ASN-CXA-ALL-CCI-22773-RDC, US 7155 3901 264 31 VIASAT-SP-BACKBONE, US 16625 3527 1815 2525 AKAMAI-AS, US 6327 3439 1319 63 SHAW, CA 749 2868 50793 2126 DNIC-AS-00749, US 30036 2622 373 167 MEDIACOM-ENTERPRISE-BUSINESS, US 209 2462 4961 419 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 6816 1730 150 UNI2-AS, ES 8551 3995 374 39 BEZEQ-INTERNATIONAL-AS Bezeqint Interne 20940 3944 3360 193 AKAMAI-ASN1, NL 39891 3819 220 34 ALJAWWALSTC-AS, SA 6849 2927 355 21 UKRTELNET, UA 12389 2898 2273 907 ROSTELECOM-AS, RU 9009 2472 246 1277 M247, GB 34984 2234 357 629 TELLCOM-AS, TR 58224 1808 930 615 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 10649 3402 559 Uninet S.A. de C.V., MX 10620 3479 518 736 Telmex Colombia S.A., CO 11830 2438 369 63 Instituto Costarricense de Electricidad 13999 1833 301 469 Mega Cable, S.A. de C.V., MX 6503 1447 355 527 Axtel, S.A.B. de C.V., MX 28573 1356 2333 255 CLARO S.A., BR 3816 1256 671 148 COLOMBIA TELECOMUNICACIONES S.A. ESP, C 6147 1078 369 21 Telefonica del Peru S.A.A., PE 11664 1026 192 444 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 1657 393 21 LINKdotNET-AS, EG 24835 1466 497 30 RAYA-AS, EG 36992 1313 1519 263 ETISALAT-MISR, EG 36903 1199 545 114 MT-MPLS, MA 29571 956 65 64 ORANGE-COTE-IVOIRE, CI 36935 675 520 42 Vodafone-, EG 6713 612 1863 34 IAM-AS, MA 15399 514 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 10649 3402 559 Uninet S.A. de C.V., MX 9808 9168 8883 40 CHINAMOBILE-CN China Mobile Communicati 12479 6816 1730 150 UNI2-AS, ES 16509 6446 10355 2822 AMAZON-02, US 7545 5892 789 694 TPG-INTERNET-AP TPG Telecom Limited, AU 11492 4514 299 658 CABLEONE, US 8551 3995 374 39 BEZEQ-INTERNATIONAL-AS Bezeqint Interne 20940 3944 3360 193 AKAMAI-ASN1, NL 22773 3922 3072 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 9168 9128 CHINAMOBILE-CN China Mobile Communications Grou 12479 6816 6666 UNI2-AS, ES 7545 5892 5198 TPG-INTERNET-AP TPG Telecom Limited, AU 8551 3995 3956 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo 7155 3901 3870 VIASAT-SP-BACKBONE, US 11492 4514 3856 CABLEONE, US 39891 3819 3785 ALJAWWALSTC-AS, SA 20940 3944 3751 AKAMAI-ASN1, NL 16509 6446 3624 AMAZON-02, US 22773 3922 3559 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 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 23.129.40.0/24 Origin: 6461 ZAYO-6461, US 23.129.40.0/24 Transit: 2914 NTT-LTD-2914, US 23.129.56.0/24 Origin: 6461 ZAYO-6461, US 23.129.56.0/24 Transit: 2914 NTT-LTD-2914, US 23.129.136.0/24 Origin: 6461 ZAYO-6461, US 23.129.136.0/24 Transit: 2914 NTT-LTD-2914, 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 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 /13:587 /14:1201 /15:2095 /16:13494 /17:8237 /18:13753 /19:24810 /20:42577 /21:50721 /22:107032 /23:94542 /24:523144 /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 5789 6816 UNI2-AS, ES 8151 4369 10649 Uninet S.A. de C.V., MX 8551 3461 3995 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo 11492 3417 4514 CABLEONE, US 6327 3250 3439 SHAW, CA 39891 3131 3819 ALJAWWALSTC-AS, SA 7155 2991 3901 VIASAT-SP-BACKBONE, US 22773 2924 3922 ASN-CXA-ALL-CCI-22773-RDC, US 6849 2778 2927 UKRTELNET, UA 30036 2279 2622 MEDIACOM-ENTERPRISE-BUSINESS, US Complete listing at https://bgp.nsrc.org/REN/Singapore/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:1912 2:1019 3:154 4:6 5:3790 6:104 7:5 8:1529 9:1 11:172 12:1709 13:290 14:2370 15:201 16:42 17:381 18:161 20:212 21:4 22:188 23:5633 24:2310 25:6 27:2602 29:19 31:2425 32:92 34:4 35:80 36:1792 37:4427 38:2888 39:703 40:152 41:3973 42:1094 43:2164 44:290 45:16007 46:4124 47:299 49:1676 50:2160 51:108 52:1431 54:371 55:756 56:8 57:60 58:1690 59:1107 60:948 61:2249 62:2524 63:1940 64:5518 65:2334 66:4825 67:2975 68:1192 69:4152 70:1329 71:684 72:3052 74:2647 75:1393 76:580 77:2154 78:1851 79:3110 80:1995 81:1615 82:1496 83:1200 84:1353 85:2923 86:705 87:1961 88:1125 89:3268 90:532 91:7619 92:2013 93:2584 94:3476 95:3849 96:1309 97:349 98:997 99:737 100:76 101:1273 102:2073 103:28953 104:4396 105:465 106:870 107:2515 108:824 109:4252 110:2023 111:3247 112:2027 113:1472 114:1478 115:1975 116:1891 117:2511 118:2315 119:1857 120:1664 121:1019 122:2545 123:2095 124:1532 125:2057 128:1186 129:1088 130:969 131:2042 132:795 133:378 134:1899 135:291 136:881 137:860 138:2422 139:1502 140:855 141:1413 142:1277 143:1437 144:1204 145:347 146:1804 147:1490 148:2214 149:1722 150:849 151:1076 152:1849 153:459 154:3432 155:1424 156:1755 157:1235 158:1048 159:2204 160:2530 161:1279 162:3454 163:1265 164:1649 165:1618 166:713 167:1735 168:3740 169:822 170:4470 171:828 172:3172 173:3120 174:1023 175:1134 176:3576 177:4646 178:3545 179:2034 180:2324 181:2972 182:3200 183:1952 184:2374 185:19493 186:4285 187:3777 188:3873 189:3276 190:8865 191:1304 192:10966 193:8613 194:7003 195:4933 196:2958 197:2372 198:5939 199:6029 200:7476 201:5723 202:10096 203:9991 204:4531 205:3419 206:3687 207:3330 208:4007 209:4638 210:4090 211:2348 212:4011 213:3417 214:1155 215:67 216:6454 217:2668 218:1263 219:405 220:1665 221:978 222:670 223:2118 End of report