IPv4 R&E Routing Table Report 23:05 GMT Wed 11 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: 880453 Prefixes after maximum aggregation (per Origin AS): 335347 Deaggregation factor: 2.63 Unique aggregates announced (without unneeded subnets): 431765 Number of IPv4 prefixes with a valid ROA: 323293 Number of IPv4 prefixes with an invalid ROA: 1071 Number of IPv4 prefixes with no ROA: 556089 Total ASes present in the Internet Routing Table: 72928 Prefixes per ASN: 12.07 Origin-only ASes present in the Internet Routing Table: 62632 Origin ASes announcing only one prefix: 25749 Transit ASes present in the Internet Routing Table: 10296 Transit-only ASes present in the Internet Routing Table: 373 Average AS path length visible in the Internet Routing Table: 4.4 Max AS path length visible: 66 Max AS path prepend of ASN (267602) 58 Prefixes from unregistered ASNs in the Routing Table: 864 Number of instances of unregistered ASNs: 869 Number of 32-bit ASNs allocated by the RIRs: 39340 Number of 32-bit ASNs visible in the Routing Table: 32592 Prefixes from 32-bit ASNs in the Routing Table: 153257 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: 504 Number of addresses announced to Internet: 3066192896 Equivalent to 182 /8s, 194 /16s and 100 /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: 296073 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 228529 Total APNIC prefixes after maximum aggregation: 65997 APNIC Deaggregation factor: 3.46 Prefixes being announced from the APNIC address blocks: 223698 Unique aggregates announced from the APNIC address blocks: 94718 APNIC Region origin ASes present in the Internet Routing Table: 12540 APNIC Prefixes per ASN: 17.84 APNIC Region origin ASes announcing only one prefix: 3580 APNIC Region transit ASes present in the Internet Routing Table: 1719 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: 7809 Number of APNIC addresses announced to Internet: 773314560 Equivalent to 46 /8s, 23 /16s and 216 /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: 260235 Total ARIN prefixes after maximum aggregation: 119745 ARIN Deaggregation factor: 2.17 Prefixes being announced from the ARIN address blocks: 260171 Unique aggregates announced from the ARIN address blocks: 125869 ARIN Region origin ASes present in the Internet Routing Table: 18949 ARIN Prefixes per ASN: 13.73 ARIN Region origin ASes announcing only one prefix: 6907 ARIN Region transit ASes present in the Internet Routing Table: 1870 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: 4465 Number of ARIN addresses announced to Internet: 1295141120 Equivalent to 77 /8s, 50 /16s and 73 /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: 249198 Total RIPE prefixes after maximum aggregation: 116116 RIPE Deaggregation factor: 2.15 Prefixes being announced from the RIPE address blocks: 246523 Unique aggregates announced from the RIPE address blocks: 150511 RIPE Region origin ASes present in the Internet Routing Table: 28122 RIPE Prefixes per ASN: 8.77 RIPE Region origin ASes announcing only one prefix: 12031 RIPE Region transit ASes present in the Internet Routing Table: 3994 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: 10708 Number of RIPE addresses announced to Internet: 713748480 Equivalent to 42 /8s, 138 /16s and 240 /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: 114401 Total LACNIC prefixes after maximum aggregation: 27357 LACNIC Deaggregation factor: 4.18 Prefixes being announced from the LACNIC address blocks: 114246 Unique aggregates announced from the LACNIC address blocks: 48599 LACNIC Region origin ASes present in the Internet Routing Table: 10956 LACNIC Prefixes per ASN: 10.43 LACNIC Region origin ASes announcing only one prefix: 2674 LACNIC Region transit ASes present in the Internet Routing Table: 2211 Average LACNIC Region AS path length visible: 5.2 Max LACNIC Region AS path length visible: 66 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 8655 Number of LACNIC addresses announced to Internet: 176340736 Equivalent to 10 /8s, 130 /16s and 191 /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: 27226 Total AfriNIC prefixes after maximum aggregation: 5462 AfriNIC Deaggregation factor: 4.98 Prefixes being announced from the AfriNIC address blocks: 35311 Unique aggregates announced from the AfriNIC address blocks: 11637 AfriNIC Region origin ASes present in the Internet Routing Table: 1625 AfriNIC Prefixes per ASN: 21.73 AfriNIC Region origin ASes announcing only one prefix: 557 AfriNIC Region transit ASes present in the Internet Routing Table: 331 Average AfriNIC Region AS path length visible: 4.9 Max AfriNIC Region AS path length visible: 33 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 955 Number of AfriNIC addresses announced to Internet: 107359744 Equivalent to 6 /8s, 102 /16s and 46 /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 9134 8883 41 CHINAMOBILE-CN China Mobile Communicati 7545 5922 789 692 TPG-INTERNET-AP TPG Telecom Limited, AU 7552 3594 1330 19 VIETEL-AS-AP Viettel Group, VN 7713 3495 1039 53 TELKOMNET-AS-AP PT Telekomunikasi Indon 45899 3430 1880 56 VNPT-AS-VN VNPT Corp, VN 9498 2404 499 240 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 2117 438 201 TATACOMM-AS TATA Communications formerl 24560 2044 853 380 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 6377 10283 2753 AMAZON-02, US 11492 4494 298 692 CABLEONE, US 22773 3921 3063 349 ASN-CXA-ALL-CCI-22773-RDC, US 7155 3901 264 31 VIASAT-SP-BACKBONE, US 16625 3606 1840 2547 AKAMAI-AS, US 6327 3437 1318 61 SHAW, CA 749 2882 50780 2138 DNIC-AS-00749, US 30036 2619 373 152 MEDIACOM-ENTERPRISE-BUSINESS, US 209 2479 4961 421 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 6781 1730 150 UNI2-AS, ES 8551 4010 374 39 BEZEQ-INTERNATIONAL-AS Bezeqint Interne 20940 3942 3360 192 AKAMAI-ASN1, NL 39891 3619 208 34 ALJAWWALSTC-AS, SA 6849 2906 355 21 UKRTELNET, UA 12389 2896 2273 908 ROSTELECOM-AS, RU 9009 2478 247 1289 M247, GB 34984 2236 357 631 TELLCOM-AS, TR 58224 1815 931 613 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 10547 3396 563 Uninet S.A. de C.V., MX 10620 3475 519 738 Telmex Colombia S.A., CO 11830 2433 369 63 Instituto Costarricense de Electricidad 13999 1793 299 473 Mega Cable, S.A. de C.V., MX 6503 1455 355 528 Axtel, S.A.B. de C.V., MX 28573 1390 2333 253 CLARO S.A., BR 3816 1255 669 148 COLOMBIA TELECOMUNICACIONES S.A. ESP, C 6147 1079 369 21 Telefonica del Peru S.A.A., PE 11664 1018 191 442 Techtel LMDS Comunicaciones Interactiva 11172 957 133 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 1386 393 21 LINKdotNET-AS, EG 36992 1313 1519 263 ETISALAT-MISR, EG 36903 1199 545 114 MT-MPLS, MA 24835 1160 501 30 RAYA-AS, EG 29571 947 65 59 ORANGE-COTE-IVOIRE, CI 6713 611 1863 34 IAM-AS, MA 36935 580 520 42 Vodafone-, EG 15399 511 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 10547 3396 563 Uninet S.A. de C.V., MX 9808 9134 8883 41 CHINAMOBILE-CN China Mobile Communicati 12479 6781 1730 150 UNI2-AS, ES 16509 6377 10283 2753 AMAZON-02, US 7545 5922 789 692 TPG-INTERNET-AP TPG Telecom Limited, AU 11492 4494 298 692 CABLEONE, US 8551 4010 374 39 BEZEQ-INTERNATIONAL-AS Bezeqint Interne 20940 3942 3360 192 AKAMAI-ASN1, NL 22773 3921 3063 349 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 9134 9093 CHINAMOBILE-CN China Mobile Communications Grou 12479 6781 6631 UNI2-AS, ES 7545 5922 5230 TPG-INTERNET-AP TPG Telecom Limited, AU 8551 4010 3971 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo 7155 3901 3870 VIASAT-SP-BACKBONE, US 11492 4494 3802 CABLEONE, US 20940 3942 3750 AKAMAI-ASN1, NL 16509 6377 3624 AMAZON-02, US 39891 3619 3585 ALJAWWALSTC-AS, SA 7552 3594 3575 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 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 17033 UNALLOCATED 12.3.33.0/24 7018 ATT-INTERNET4, 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 23.166.208.0/24 Origin: 398906 LUFTCLOUD-ASN-01, US 23.166.208.0/24 Transit: 132132 REPUBLICTELECOM-SG MyRepublic Ltd., SG 23.185.16.0/24 Origin: 399244 BLOOM-HOST, US 23.185.16.0/24 Transit: 13335 CLOUDFLARENET, US 23.185.17.0/24 Origin: 399244 BLOOM-HOST, US 23.185.17.0/24 Transit: 13335 CLOUDFLARENET, 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 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 /13:589 /14:1203 /15:2098 /16:13508 /17:8242 /18:13770 /19:24840 /20:42309 /21:50675 /22:106628 /23:94381 /24:521732 /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 5761 6781 UNI2-AS, ES 8151 4283 10547 Uninet S.A. de C.V., MX 8551 3476 4010 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo 11492 3400 4494 CABLEONE, US 6327 3250 3437 SHAW, CA 7155 2991 3901 VIASAT-SP-BACKBONE, US 39891 2939 3619 ALJAWWALSTC-AS, SA 22773 2932 3921 ASN-CXA-ALL-CCI-22773-RDC, US 6849 2757 2906 UKRTELNET, UA 30036 2276 2619 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 2:1032 3:154 4:6 5:3779 6:104 7:5 8:1526 9:1 11:172 12:1711 13:296 14:2371 15:200 16:45 17:385 18:158 20:209 21:4 22:188 23:5649 24:2274 25:6 27:2599 29:19 31:2406 32:93 34:1 35:75 36:1781 37:4370 38:2811 39:699 40:153 41:3935 42:1090 43:2170 44:291 45:15941 46:4131 47:293 49:1684 50:2105 51:100 52:1424 54:365 55:735 56:8 57:59 58:1698 59:1106 60:959 61:2248 62:2486 63:1944 64:5483 65:2317 66:4815 67:2967 68:1193 69:4139 70:1333 71:678 72:3045 74:2632 75:1390 76:585 77:2180 78:1780 79:3109 80:1990 81:1593 82:1486 83:1206 84:1351 85:2912 86:709 87:1966 88:1105 89:3275 90:520 91:7609 92:2008 93:2516 94:3486 95:3853 96:1304 97:349 98:994 99:736 100:75 101:1270 102:2055 103:28861 104:4371 105:462 106:871 107:2508 108:823 109:4231 110:2011 111:3230 112:2027 113:1477 114:1478 115:1972 116:1873 117:2508 118:2333 119:1859 120:1662 121:1018 122:2543 123:2092 124:1537 125:2050 128:1180 129:1092 130:957 131:2049 132:790 133:372 134:1892 135:290 136:878 137:847 138:2430 139:1501 140:848 141:1401 142:1280 143:1445 144:1214 145:343 146:1800 147:1477 148:2217 149:1716 150:844 151:1083 152:1848 153:455 154:3502 155:1425 156:1757 157:1226 158:1042 159:2170 160:2503 161:1270 162:3455 163:1261 164:1631 165:1612 166:703 167:1726 168:3765 169:841 170:4479 171:828 172:3133 173:3101 174:1023 175:1132 176:3503 177:4628 178:3505 179:2013 180:2316 181:2956 182:3193 183:1952 184:2386 185:19462 186:4325 187:3708 188:3854 189:3200 190:8858 191:1314 192:10983 193:8603 194:6988 195:4954 196:2970 197:2428 198:5956 199:6026 200:7405 201:5703 202:10085 203:9986 204:4538 205:3427 206:3686 207:3334 208:4027 209:4642 210:4055 211:2343 212:3999 213:3419 214:1155 215:67 216:6420 217:2659 218:1247 219:405 220:1671 221:977 222:670 223:2108 End of report