IPv4 R&E Routing Table Report 23:05 GMT Mon 11 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: 880020 Prefixes after maximum aggregation (per Origin AS): 334302 Deaggregation factor: 2.63 Unique aggregates announced (without unneeded subnets): 429226 Number of IPv4 prefixes with a valid ROA: 314236 Number of IPv4 prefixes with an invalid ROA: 1160 Number of IPv4 prefixes with no ROA: 564624 Total ASes present in the Internet Routing Table: 72752 Prefixes per ASN: 12.10 Origin-only ASes present in the Internet Routing Table: 62442 Origin ASes announcing only one prefix: 25680 Transit ASes present in the Internet Routing Table: 10310 Transit-only ASes present in the Internet Routing Table: 373 Average AS path length visible in the Internet Routing Table: 4.5 Max AS path length visible: 65 Max AS path prepend of ASN (267602) 58 Prefixes from unregistered ASNs in the Routing Table: 795 Number of instances of unregistered ASNs: 800 Number of 32-bit ASNs allocated by the RIRs: 39065 Number of 32-bit ASNs visible in the Routing Table: 32399 Prefixes from 32-bit ASNs in the Routing Table: 152279 Number of bogon 32-bit ASNs visible in the Routing Table: 20 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 451 Number of addresses announced to Internet: 3066201088 Equivalent to 182 /8s, 194 /16s and 132 /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: 99.5 Total number of prefixes smaller than registry allocations: 295617 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 229187 Total APNIC prefixes after maximum aggregation: 65820 APNIC Deaggregation factor: 3.48 Prefixes being announced from the APNIC address blocks: 223952 Unique aggregates announced from the APNIC address blocks: 94394 APNIC Region origin ASes present in the Internet Routing Table: 12464 APNIC Prefixes per ASN: 17.97 APNIC Region origin ASes announcing only one prefix: 3539 APNIC Region transit ASes present in the Internet Routing Table: 1703 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: 7728 Number of APNIC addresses announced to Internet: 773242368 Equivalent to 46 /8s, 22 /16s and 190 /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: 259261 Total ARIN prefixes after maximum aggregation: 119330 ARIN Deaggregation factor: 2.17 Prefixes being announced from the ARIN address blocks: 259385 Unique aggregates announced from the ARIN address blocks: 124102 ARIN Region origin ASes present in the Internet Routing Table: 18923 ARIN Prefixes per ASN: 13.71 ARIN Region origin ASes announcing only one prefix: 6890 ARIN Region transit ASes present in the Internet Routing Table: 1881 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: 4416 Number of ARIN addresses announced to Internet: 1295126272 Equivalent to 77 /8s, 50 /16s and 15 /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: 248709 Total RIPE prefixes after maximum aggregation: 115704 RIPE Deaggregation factor: 2.15 Prefixes being announced from the RIPE address blocks: 246167 Unique aggregates announced from the RIPE address blocks: 150480 RIPE Region origin ASes present in the Internet Routing Table: 28081 RIPE Prefixes per ASN: 8.77 RIPE Region origin ASes announcing only one prefix: 12032 RIPE Region transit ASes present in the Internet Routing Table: 4010 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: 10663 Number of RIPE addresses announced to Internet: 713903872 Equivalent to 42 /8s, 141 /16s and 79 /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: 114299 Total LACNIC prefixes after maximum aggregation: 27370 LACNIC Deaggregation factor: 4.18 Prefixes being announced from the LACNIC address blocks: 114198 Unique aggregates announced from the LACNIC address blocks: 48229 LACNIC Region origin ASes present in the Internet Routing Table: 10942 LACNIC Prefixes per ASN: 10.44 LACNIC Region origin ASes announcing only one prefix: 2655 LACNIC Region transit ASes present in the Internet Routing Table: 2217 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: 8642 Number of LACNIC addresses announced to Internet: 176300800 Equivalent to 10 /8s, 130 /16s and 35 /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: 27769 Total AfriNIC prefixes after maximum aggregation: 5455 AfriNIC Deaggregation factor: 5.09 Prefixes being announced from the AfriNIC address blocks: 35867 Unique aggregates announced from the AfriNIC address blocks: 11629 AfriNIC Region origin ASes present in the Internet Routing Table: 1617 AfriNIC Prefixes per ASN: 22.18 AfriNIC Region origin ASes announcing only one prefix: 564 AfriNIC Region transit ASes present in the Internet Routing Table: 335 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: 950 Number of AfriNIC addresses announced to Internet: 107373312 Equivalent to 6 /8s, 102 /16s and 99 /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 9209 8883 41 CHINAMOBILE-CN China Mobile Communicati 7545 5904 789 698 TPG-INTERNET-AP TPG Telecom Limited, AU 7552 3585 1330 19 VIETEL-AS-AP Viettel Group, VN 7713 3498 1038 51 TELKOMNET-AS-AP PT Telekomunikasi Indon 45899 3434 1880 56 VNPT-AS-VN VNPT Corp, VN 9498 2393 491 238 BBIL-AP BHARTI Airtel Ltd., IN 4766 2254 11119 595 KIXS-AS-KR Korea Telecom, KR 45090 2126 1438 79 TENCENT-NET-AP Shenzhen Tencent Compute 4755 2114 429 197 TATACOMM-AS TATA Communications formerl 24560 2044 854 374 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 6141 10256 2694 AMAZON-02, US 11492 4424 294 762 CABLEONE, US 22773 3926 3071 359 ASN-CXA-ALL-CCI-22773-RDC, US 7155 3900 264 31 VIASAT-SP-BACKBONE, US 16625 3626 1861 2557 AKAMAI-AS, US 6327 3430 1318 61 SHAW, CA 749 2882 50780 2138 DNIC-AS-00749, US 30036 2614 374 124 MEDIACOM-ENTERPRISE-BUSINESS, US 209 2522 4962 424 CENTURYLINK-US-LEGACY-QWEST, US 20115 2254 3042 494 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 6823 1730 149 UNI2-AS, ES 8551 4003 374 39 BEZEQ-INTERNATIONAL-AS Bezeqint Interne 20940 3918 3360 192 AKAMAI-ASN1, NL 39891 3819 220 34 ALJAWWALSTC-AS, SA 12389 2907 2274 908 ROSTELECOM-AS, RU 6849 2761 355 21 UKRTELNET, UA 9009 2475 247 1284 M247, GB 34984 2225 357 625 TELLCOM-AS, TR 58224 1809 931 603 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 10535 3391 557 Uninet S.A. de C.V., MX 10620 3463 517 760 Telmex Colombia S.A., CO 11830 2430 369 63 Instituto Costarricense de Electricidad 13999 1735 294 472 Mega Cable, S.A. de C.V., MX 6503 1447 355 524 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 1086 369 21 Telefonica del Peru S.A.A., PE 11664 1007 192 448 Techtel LMDS Comunicaciones Interactiva 11172 959 133 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 1645 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 901 65 58 ORANGE-COTE-IVOIRE, CI 36935 771 520 42 Vodafone-, EG 6713 612 1863 34 IAM-AS, MA 15399 518 51 34 WANANCHI-, KE 37342 469 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 10535 3391 557 Uninet S.A. de C.V., MX 9808 9209 8883 41 CHINAMOBILE-CN China Mobile Communicati 12479 6823 1730 149 UNI2-AS, ES 16509 6141 10256 2694 AMAZON-02, US 7545 5904 789 698 TPG-INTERNET-AP TPG Telecom Limited, AU 11492 4424 294 762 CABLEONE, US 8551 4003 374 39 BEZEQ-INTERNATIONAL-AS Bezeqint Interne 22773 3926 3071 359 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 9209 9168 CHINAMOBILE-CN China Mobile Communications Grou 12479 6823 6674 UNI2-AS, ES 7545 5904 5206 TPG-INTERNET-AP TPG Telecom Limited, AU 8551 4003 3964 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo 7155 3900 3869 VIASAT-SP-BACKBONE, US 39891 3819 3785 ALJAWWALSTC-AS, SA 20940 3918 3726 AKAMAI-ASN1, NL 11492 4424 3662 CABLEONE, US 22773 3926 3567 ASN-CXA-ALL-CCI-22773-RDC, US 7552 3585 3566 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 /10:39 /11:100 /12:303 /13:586 /14:1196 /15:2086 /16:13492 /17:8168 /18:13732 /19:24830 /20:42344 /21:50812 /22:106992 /23:94188 /24:521115 /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 5802 6823 UNI2-AS, ES 8151 4198 10535 Uninet S.A. de C.V., MX 8551 3476 4003 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo 11492 3356 4424 CABLEONE, US 6327 3243 3430 SHAW, CA 39891 3131 3819 ALJAWWALSTC-AS, SA 7155 2990 3900 VIASAT-SP-BACKBONE, US 22773 2931 3926 ASN-CXA-ALL-CCI-22773-RDC, US 6849 2623 2761 UKRTELNET, UA 30036 2270 2614 MEDIACOM-ENTERPRISE-BUSINESS, US Complete listing at https://bgp.nsrc.org/REN/Singapore/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:1908 2:1033 3:154 4:7 5:3800 6:103 7:5 8:1523 9:1 11:172 12:1713 13:278 14:2379 15:191 16:45 17:381 18:146 20:194 21:4 22:188 23:5576 24:2274 25:4 27:2601 29:19 31:2430 32:93 34:1 35:72 36:1775 37:4414 38:2744 39:724 40:151 41:3919 42:1086 43:2166 44:290 45:16044 46:4112 47:319 49:1658 50:1921 51:99 52:1409 53:1 54:363 55:688 56:8 57:59 58:1686 59:1114 60:956 61:2259 62:2481 63:1953 64:5506 65:2300 66:4810 67:2973 68:1181 69:4137 70:1339 71:657 72:3056 74:2661 75:1389 76:588 77:2156 78:1845 79:3112 80:1980 81:1603 82:1481 83:1196 84:1352 85:2900 86:712 87:1962 88:1094 89:3273 90:523 91:7617 92:1987 93:2592 94:3449 95:3860 96:1303 97:346 98:986 99:739 100:74 101:1277 102:2032 103:28973 104:4358 105:466 106:851 107:2532 108:818 109:4218 110:2052 111:3260 112:2029 113:1453 114:1475 115:1949 116:1874 117:2534 118:2331 119:1884 120:1668 121:1011 122:2537 123:2100 124:1535 125:2047 128:1157 129:1212 130:909 131:2064 132:788 133:373 134:1919 135:289 136:864 137:870 138:2441 139:1490 140:853 141:1386 142:1289 143:1471 144:1243 145:343 146:1792 147:1485 148:2223 149:1695 150:854 151:1083 152:1834 153:459 154:3478 155:1434 156:1761 157:1232 158:1031 159:2063 160:2467 161:1322 162:3434 163:1238 164:1626 165:1614 166:697 167:1738 168:3715 169:707 170:4441 171:824 172:3122 173:3077 174:1013 175:1144 176:3469 177:4599 178:3436 179:2018 180:2313 181:2930 182:3197 183:1952 184:2386 185:19496 186:4367 187:3636 188:3865 189:3152 190:8884 191:1339 192:10968 193:8565 194:6944 195:4955 196:2963 197:2404 198:5976 199:6003 200:7374 201:5688 202:10180 203:9980 204:4543 205:3378 206:3694 207:3350 208:4040 209:4646 210:4047 211:2339 212:3974 213:3425 214:1156 215:67 216:6410 217:2667 218:1240 219:406 220:1671 221:978 222:671 223:2113 End of report