IPv4 R&E Routing Table Report 23:05 GMT Sun 24 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: 881224 Prefixes after maximum aggregation (per Origin AS): 334946 Deaggregation factor: 2.63 Unique aggregates announced (without unneeded subnets): 430423 Number of IPv4 prefixes with a valid ROA: 316204 Number of IPv4 prefixes with an invalid ROA: 1186 Number of IPv4 prefixes with no ROA: 563834 Total ASes present in the Internet Routing Table: 72885 Prefixes per ASN: 12.09 Origin-only ASes present in the Internet Routing Table: 62569 Origin ASes announcing only one prefix: 25723 Transit ASes present in the Internet Routing Table: 10316 Transit-only ASes present in the Internet Routing Table: 368 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: 851 Number of instances of unregistered ASNs: 855 Number of 32-bit ASNs allocated by the RIRs: 39201 Number of 32-bit ASNs visible in the Routing Table: 32513 Prefixes from 32-bit ASNs in the Routing Table: 153181 Number of bogon 32-bit ASNs visible in the Routing Table: 14 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 486 Number of addresses announced to Internet: 3066436352 Equivalent to 182 /8s, 198 /16s and 27 /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: 296045 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 228990 Total APNIC prefixes after maximum aggregation: 65971 APNIC Deaggregation factor: 3.47 Prefixes being announced from the APNIC address blocks: 223898 Unique aggregates announced from the APNIC address blocks: 94599 APNIC Region origin ASes present in the Internet Routing Table: 12509 APNIC Prefixes per ASN: 17.90 APNIC Region origin ASes announcing only one prefix: 3547 APNIC Region transit ASes present in the Internet Routing Table: 1719 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: 7771 Number of APNIC addresses announced to Internet: 773424128 Equivalent to 46 /8s, 25 /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: 259841 Total ARIN prefixes after maximum aggregation: 119516 ARIN Deaggregation factor: 2.17 Prefixes being announced from the ARIN address blocks: 260004 Unique aggregates announced from the ARIN address blocks: 124686 ARIN Region origin ASes present in the Internet Routing Table: 18941 ARIN Prefixes per ASN: 13.73 ARIN Region origin ASes announcing only one prefix: 6904 ARIN Region transit ASes present in the Internet Routing Table: 1876 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: 4445 Number of ARIN addresses announced to Internet: 1295229184 Equivalent to 77 /8s, 51 /16s and 161 /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: 249185 Total RIPE prefixes after maximum aggregation: 115985 RIPE Deaggregation factor: 2.15 Prefixes being announced from the RIPE address blocks: 246558 Unique aggregates announced from the RIPE address blocks: 150600 RIPE Region origin ASes present in the Internet Routing Table: 28127 RIPE Prefixes per ASN: 8.77 RIPE Region origin ASes announcing only one prefix: 12051 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: 10699 Number of RIPE addresses announced to Internet: 713767936 Equivalent to 42 /8s, 139 /16s and 60 /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: 114448 Total LACNIC prefixes after maximum aggregation: 27345 LACNIC Deaggregation factor: 4.19 Prefixes being announced from the LACNIC address blocks: 114288 Unique aggregates announced from the LACNIC address blocks: 48462 LACNIC Region origin ASes present in the Internet Routing Table: 10949 LACNIC Prefixes per ASN: 10.44 LACNIC Region origin ASes announcing only one prefix: 2659 LACNIC Region transit ASes present in the Internet Routing Table: 2213 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: 8643 Number of LACNIC addresses announced to Internet: 176325376 Equivalent to 10 /8s, 130 /16s and 131 /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: 27909 Total AfriNIC prefixes after maximum aggregation: 5470 AfriNIC Deaggregation factor: 5.10 Prefixes being announced from the AfriNIC address blocks: 35990 Unique aggregates announced from the AfriNIC address blocks: 11654 AfriNIC Region origin ASes present in the Internet Routing Table: 1622 AfriNIC Prefixes per ASN: 22.19 AfriNIC Region origin ASes announcing only one prefix: 562 AfriNIC Region transit ASes present in the Internet Routing Table: 330 Average AfriNIC Region AS path length visible: 5.0 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: 107413248 Equivalent to 6 /8s, 102 /16s and 255 /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 9137 8883 41 CHINAMOBILE-CN China Mobile Communicati 7545 5909 789 696 TPG-INTERNET-AP TPG Telecom Limited, AU 7552 3593 1330 19 VIETEL-AS-AP Viettel Group, VN 7713 3498 1039 53 TELKOMNET-AS-AP PT Telekomunikasi Indon 45899 3427 1880 56 VNPT-AS-VN VNPT Corp, VN 9498 2397 491 238 BBIL-AP BHARTI Airtel Ltd., IN 4766 2254 11119 595 KIXS-AS-KR Korea Telecom, KR 45090 2134 1438 79 TENCENT-NET-AP Shenzhen Tencent Compute 4755 2117 429 197 TATACOMM-AS TATA Communications formerl 24560 2049 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 6245 10272 2708 AMAZON-02, US 11492 4474 297 690 CABLEONE, US 22773 3934 3072 358 ASN-CXA-ALL-CCI-22773-RDC, US 7155 3900 264 31 VIASAT-SP-BACKBONE, US 16625 3620 1856 2555 AKAMAI-AS, US 6327 3430 1318 61 SHAW, CA 749 2882 50780 2138 DNIC-AS-00749, US 30036 2618 374 124 MEDIACOM-ENTERPRISE-BUSINESS, US 209 2519 4962 422 CENTURYLINK-US-LEGACY-QWEST, US 20115 2255 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 6787 1730 150 UNI2-AS, ES 8551 4009 374 39 BEZEQ-INTERNATIONAL-AS Bezeqint Interne 20940 3918 3360 192 AKAMAI-ASN1, NL 39891 3819 220 34 ALJAWWALSTC-AS, SA 6849 2906 355 21 UKRTELNET, UA 12389 2900 2273 907 ROSTELECOM-AS, RU 9009 2473 247 1284 M247, GB 34984 2238 357 632 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 10582 3388 559 Uninet S.A. de C.V., MX 10620 3471 518 740 Telmex Colombia S.A., CO 11830 2433 369 63 Instituto Costarricense de Electricidad 13999 1758 296 471 Mega Cable, S.A. de C.V., MX 6503 1455 355 525 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 1023 191 447 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 1655 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 907 65 59 ORANGE-COTE-IVOIRE, CI 36935 773 520 42 Vodafone-, EG 6713 612 1863 34 IAM-AS, MA 15399 514 51 32 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 10582 3388 559 Uninet S.A. de C.V., MX 9808 9137 8883 41 CHINAMOBILE-CN China Mobile Communicati 12479 6787 1730 150 UNI2-AS, ES 16509 6245 10272 2708 AMAZON-02, US 7545 5909 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 3934 3072 358 ASN-CXA-ALL-CCI-22773-RDC, US 20940 3918 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 9137 9096 CHINAMOBILE-CN China Mobile Communications Grou 12479 6787 6637 UNI2-AS, ES 7545 5909 5213 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 3918 3726 AKAMAI-ASN1, NL 22773 3934 3576 ASN-CXA-ALL-CCI-22773-RDC, US 7552 3593 3574 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 /14:1201 /15:2094 /16:13502 /17:8191 /18:13767 /19:24846 /20:42387 /21:50865 /22:107122 /23:94428 /24:521751 /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 5769 6787 UNI2-AS, ES 8151 4248 10582 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 2940 3934 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 2:1033 3:154 4:7 5:3781 6:103 7:5 8:1528 9:1 11:172 12:1709 13:300 14:2367 15:193 16:45 17:381 18:159 20:194 21:4 22:188 23:5624 24:2282 25:6 27:2603 29:19 31:2407 32:93 34:1 35:73 36:1776 37:4417 38:2814 39:699 40:153 41:3954 42:1088 43:2172 44:289 45:15944 46:4111 47:309 49:1675 50:1932 51:100 52:1418 54:363 55:715 56:8 57:59 58:1692 59:1116 60:957 61:2260 62:2482 63:1950 64:5483 65:2314 66:4817 67:2971 68:1191 69:4130 70:1338 71:657 72:3047 74:2655 75:1387 76:580 77:2178 78:1844 79:3114 80:1976 81:1592 82:1495 83:1205 84:1351 85:2895 86:705 87:1956 88:1095 89:3267 90:521 91:7619 92:1999 93:2587 94:3498 95:3869 96:1294 97:351 98:991 99:736 100:75 101:1271 102:2067 103:28885 104:4358 105:466 106:856 107:2513 108:830 109:4207 110:2048 111:3242 112:2028 113:1461 114:1479 115:1959 116:1878 117:2515 118:2331 119:1868 120:1660 121:1019 122:2540 123:2096 124:1534 125:2049 128:1174 129:1092 130:956 131:2041 132:790 133:372 134:1916 135:289 136:887 137:856 138:2434 139:1499 140:857 141:1389 142:1282 143:1469 144:1209 145:344 146:1805 147:1462 148:2219 149:1724 150:853 151:1077 152:1849 153:458 154:3539 155:1426 156:1770 157:1228 158:1036 159:2123 160:2473 161:1319 162:3446 163:1248 164:1624 165:1614 166:692 167:1735 168:3778 169:832 170:4488 171:828 172:3134 173:3076 174:1022 175:1134 176:3519 177:4623 178:3507 179:2011 180:2311 181:2969 182:3193 183:1950 184:2390 185:19456 186:4319 187:3681 188:3855 189:3183 190:8864 191:1325 192:10974 193:8601 194:6970 195:4947 196:2983 197:2416 198:5972 199:6015 200:7414 201:5696 202:10085 203:9990 204:4552 205:3426 206:3693 207:3341 208:4051 209:4638 210:4047 211:2340 212:3997 213:3428 214:1160 215:67 216:6427 217:2661 218:1245 219:406 220:1673 221:977 222:670 223:2109 End of report