IPv4 R&E Routing Table Report 23:05 GMT Fri 29 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: 881432 Prefixes after maximum aggregation (per Origin AS): 335205 Deaggregation factor: 2.63 Unique aggregates announced (without unneeded subnets): 430422 Number of IPv4 prefixes with a valid ROA: 318365 Number of IPv4 prefixes with an invalid ROA: 1197 Number of IPv4 prefixes with no ROA: 561870 Total ASes present in the Internet Routing Table: 72931 Prefixes per ASN: 12.09 Origin-only ASes present in the Internet Routing Table: 62613 Origin ASes announcing only one prefix: 25726 Transit ASes present in the Internet Routing Table: 10318 Transit-only ASes present in the Internet Routing Table: 366 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: 847 Number of instances of unregistered ASNs: 852 Number of 32-bit ASNs allocated by the RIRs: 39240 Number of 32-bit ASNs visible in the Routing Table: 32577 Prefixes from 32-bit ASNs in the Routing Table: 153379 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: 481 Number of addresses announced to Internet: 3066304256 Equivalent to 182 /8s, 196 /16s and 23 /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: 296416 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 228905 Total APNIC prefixes after maximum aggregation: 66049 APNIC Deaggregation factor: 3.47 Prefixes being announced from the APNIC address blocks: 223854 Unique aggregates announced from the APNIC address blocks: 94672 APNIC Region origin ASes present in the Internet Routing Table: 12534 APNIC Prefixes per ASN: 17.86 APNIC Region origin ASes announcing only one prefix: 3557 APNIC Region transit ASes present in the Internet Routing Table: 1714 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: 773377280 Equivalent to 46 /8s, 24 /16s and 205 /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: 260258 Total ARIN prefixes after maximum aggregation: 119517 ARIN Deaggregation factor: 2.18 Prefixes being announced from the ARIN address blocks: 260428 Unique aggregates announced from the ARIN address blocks: 124675 ARIN Region origin ASes present in the Internet Routing Table: 18949 ARIN Prefixes per ASN: 13.74 ARIN Region origin ASes announcing only one prefix: 6911 ARIN Region transit ASes present in the Internet Routing Table: 1877 Average ARIN Region AS path length visible: 4.3 Max ARIN Region AS path length visible: 37 Number of ARIN region 32-bit ASNs visible in the Routing Table: 4462 Number of ARIN addresses announced to Internet: 1295309312 Equivalent to 77 /8s, 52 /16s and 218 /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: 249371 Total RIPE prefixes after maximum aggregation: 116187 RIPE Deaggregation factor: 2.15 Prefixes being announced from the RIPE address blocks: 246705 Unique aggregates announced from the RIPE address blocks: 150551 RIPE Region origin ASes present in the Internet Routing Table: 28131 RIPE Prefixes per ASN: 8.77 RIPE Region origin ASes announcing only one prefix: 12040 RIPE Region transit ASes present in the Internet Routing Table: 4014 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: 10710 Number of RIPE addresses announced to Internet: 713879552 Equivalent to 42 /8s, 140 /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: 114490 Total LACNIC prefixes after maximum aggregation: 27360 LACNIC Deaggregation factor: 4.18 Prefixes being announced from the LACNIC address blocks: 114346 Unique aggregates announced from the LACNIC address blocks: 48500 LACNIC Region origin ASes present in the Internet Routing Table: 10956 LACNIC Prefixes per ASN: 10.44 LACNIC Region origin ASes announcing only one prefix: 2653 LACNIC Region transit ASes present in the Internet Routing Table: 2211 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: 8652 Number of LACNIC addresses announced to Internet: 176359168 Equivalent to 10 /8s, 131 /16s and 7 /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: 27561 Total AfriNIC prefixes after maximum aggregation: 5435 AfriNIC Deaggregation factor: 5.07 Prefixes being announced from the AfriNIC address blocks: 35618 Unique aggregates announced from the AfriNIC address blocks: 11607 AfriNIC Region origin ASes present in the Internet Routing Table: 1628 AfriNIC Prefixes per ASN: 21.88 AfriNIC Region origin ASes announcing only one prefix: 565 AfriNIC Region transit ASes present in the Internet Routing Table: 326 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: 958 Number of AfriNIC addresses announced to Internet: 107106816 Equivalent to 6 /8s, 98 /16s and 82 /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 9149 8883 41 CHINAMOBILE-CN China Mobile Communicati 7545 5911 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 2400 491 239 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 2117 430 199 TATACOMM-AS TATA Communications formerl 24560 2051 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 6270 10276 2707 AMAZON-02, US 11492 4475 297 691 CABLEONE, US 22773 3933 3072 356 ASN-CXA-ALL-CCI-22773-RDC, US 7155 3901 264 31 VIASAT-SP-BACKBONE, US 16625 3597 1839 2540 AKAMAI-AS, US 6327 3431 1318 61 SHAW, CA 749 2882 50780 2138 DNIC-AS-00749, US 30036 2618 373 133 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 4008 374 39 BEZEQ-INTERNATIONAL-AS Bezeqint Interne 20940 3926 3360 192 AKAMAI-ASN1, NL 39891 3819 220 34 ALJAWWALSTC-AS, SA 6849 2906 355 21 UKRTELNET, UA 12389 2897 2273 908 ROSTELECOM-AS, RU 9009 2485 249 1291 M247, GB 34984 2237 357 632 TELLCOM-AS, TR 58224 1814 931 613 TCI, IR 13188 1593 99 87 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 10617 3391 561 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 1454 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 1444 515 32 RAYA-AS, EG 36992 1314 1519 263 ETISALAT-MISR, EG 36903 1199 545 114 MT-MPLS, MA 29571 913 65 59 ORANGE-COTE-IVOIRE, CI 6713 612 1863 34 IAM-AS, MA 36935 600 519 39 Vodafone-, EG 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 10617 3391 561 Uninet S.A. de C.V., MX 9808 9149 8883 41 CHINAMOBILE-CN China Mobile Communicati 12479 6774 1730 150 UNI2-AS, ES 16509 6270 10276 2707 AMAZON-02, US 7545 5911 789 696 TPG-INTERNET-AP TPG Telecom Limited, AU 11492 4475 297 691 CABLEONE, US 8551 4008 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 9149 9108 CHINAMOBILE-CN China Mobile Communications Grou 12479 6774 6624 UNI2-AS, ES 7545 5911 5215 TPG-INTERNET-AP TPG Telecom Limited, AU 8551 4008 3969 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo 7155 3901 3870 VIASAT-SP-BACKBONE, US 39891 3819 3785 ALJAWWALSTC-AS, SA 11492 4475 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 23.131.187.0/24 Origin: 174 COGENT-174, US 23.131.187.0/24 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 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 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 /14:1202 /15:2099 /16:13511 /17:8192 /18:13747 /19:24853 /20:42446 /21:50846 /22:107016 /23:94401 /24:522050 /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 10617 Uninet S.A. de C.V., MX 8551 3474 4008 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo 11492 3381 4475 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 2757 2906 UKRTELNET, UA 30036 2274 2618 MEDIACOM-ENTERPRISE-BUSINESS, US Complete listing at https://bgp.nsrc.org/REN/Singapore/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:1928 2:1036 3:154 4:7 5:3782 6:104 7:5 8:1530 9:1 11:172 12:1708 13:298 14:2370 15:193 16:45 17:384 18:160 20:191 21:4 22:188 23:5641 24:2284 25:6 27:2599 29:19 31:2412 32:93 34:1 35:73 36:1777 37:4414 38:2827 39:700 40:153 41:3951 42:1088 43:2174 44:301 45:15950 46:4118 47:316 49:1676 50:2160 51:99 52:1417 54:364 55:736 56:8 57:59 58:1696 59:1117 60:958 61:2250 62:2479 63:1951 64:5483 65:2318 66:4812 67:2970 68:1192 69:4150 70:1341 71:642 72:3045 74:2652 75:1387 76:591 77:2187 78:1850 79:3114 80:1979 81:1592 82:1496 83:1207 84:1354 85:2903 86:710 87:1964 88:1104 89:3290 90:519 91:7612 92:1995 93:2585 94:3500 95:3856 96:1307 97:349 98:989 99:737 100:75 101:1272 102:2073 103:28903 104:4356 105:462 106:857 107:2525 108:829 109:4202 110:2019 111:3249 112:2026 113:1472 114:1480 115:1970 116:1877 117:2516 118:2333 119:1855 120:1661 121:1015 122:2543 123:2094 124:1538 125:2053 128:1183 129:1092 130:957 131:2041 132:757 133:372 134:1910 135:289 136:884 137:855 138:2437 139:1497 140:853 141:1401 142:1287 143:1447 144:1204 145:344 146:1799 147:1466 148:2212 149:1717 150:845 151:1077 152:1849 153:458 154:3501 155:1422 156:1760 157:1228 158:1039 159:2122 160:2472 161:1277 162:3458 163:1248 164:1625 165:1613 166:700 167:1729 168:3778 169:834 170:4488 171:830 172:3138 173:3081 174:1024 175:1130 176:3518 177:4644 178:3490 179:2013 180:2316 181:2957 182:3208 183:1953 184:2386 185:19458 186:4323 187:3691 188:3853 189:3196 190:8858 191:1328 192:10973 193:8593 194:6981 195:4951 196:2967 197:2404 198:5974 199:6019 200:7386 201:5698 202:10092 203:9989 204:4537 205:3434 206:3691 207:3342 208:4036 209:4650 210:4056 211:2342 212:4011 213:3430 214:1160 215:67 216:6432 217:2664 218:1248 219:405 220:1674 221:978 222:670 223:2110 End of report