IPv4 R&E Routing Table Report 23:05 GMT Sun 17 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: 880038 Prefixes after maximum aggregation (per Origin AS): 334542 Deaggregation factor: 2.63 Unique aggregates announced (without unneeded subnets): 429543 Number of IPv4 prefixes with a valid ROA: 314611 Number of IPv4 prefixes with an invalid ROA: 1162 Number of IPv4 prefixes with no ROA: 564265 Total ASes present in the Internet Routing Table: 72798 Prefixes per ASN: 12.09 Origin-only ASes present in the Internet Routing Table: 62507 Origin ASes announcing only one prefix: 25674 Transit ASes present in the Internet Routing Table: 10291 Transit-only ASes present in the Internet Routing Table: 372 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: 879 Number of instances of unregistered ASNs: 886 Number of 32-bit ASNs allocated by the RIRs: 39125 Number of 32-bit ASNs visible in the Routing Table: 32420 Prefixes from 32-bit ASNs in the Routing Table: 152568 Number of bogon 32-bit ASNs visible in the Routing Table: 25 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 516 Number of addresses announced to Internet: 3066607104 Equivalent to 182 /8s, 200 /16s and 182 /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: 295726 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 228744 Total APNIC prefixes after maximum aggregation: 65891 APNIC Deaggregation factor: 3.47 Prefixes being announced from the APNIC address blocks: 223582 Unique aggregates announced from the APNIC address blocks: 94426 APNIC Region origin ASes present in the Internet Routing Table: 12471 APNIC Prefixes per ASN: 17.93 APNIC Region origin ASes announcing only one prefix: 3537 APNIC Region transit ASes present in the Internet Routing Table: 1701 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: 7733 Number of APNIC addresses announced to Internet: 773341696 Equivalent to 46 /8s, 24 /16s and 66 /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: 259365 Total ARIN prefixes after maximum aggregation: 119353 ARIN Deaggregation factor: 2.17 Prefixes being announced from the ARIN address blocks: 259482 Unique aggregates announced from the ARIN address blocks: 124345 ARIN Region origin ASes present in the Internet Routing Table: 18927 ARIN Prefixes per ASN: 13.71 ARIN Region origin ASes announcing only one prefix: 6895 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: 38 Number of ARIN region 32-bit ASNs visible in the Routing Table: 4429 Number of ARIN addresses announced to Internet: 1295225088 Equivalent to 77 /8s, 51 /16s and 145 /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: 248877 Total RIPE prefixes after maximum aggregation: 115820 RIPE Deaggregation factor: 2.15 Prefixes being announced from the RIPE address blocks: 246278 Unique aggregates announced from the RIPE address blocks: 150404 RIPE Region origin ASes present in the Internet Routing Table: 28095 RIPE Prefixes per ASN: 8.77 RIPE Region origin ASes announcing only one prefix: 12033 RIPE Region transit ASes present in the Internet Routing Table: 4001 Average RIPE Region AS path length visible: 4.6 Max RIPE Region AS path length visible: 34 Number of RIPE region 32-bit ASNs visible in the Routing Table: 10672 Number of RIPE addresses announced to Internet: 714055424 Equivalent to 42 /8s, 143 /16s and 159 /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: 114357 Total LACNIC prefixes after maximum aggregation: 27345 LACNIC Deaggregation factor: 4.18 Prefixes being announced from the LACNIC address blocks: 114249 Unique aggregates announced from the LACNIC address blocks: 48286 LACNIC Region origin ASes present in the Internet Routing Table: 10940 LACNIC Prefixes per ASN: 10.44 LACNIC Region origin ASes announcing only one prefix: 2650 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: 8638 Number of LACNIC addresses announced to Internet: 176328448 Equivalent to 10 /8s, 130 /16s and 143 /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: 27816 Total AfriNIC prefixes after maximum aggregation: 5459 AfriNIC Deaggregation factor: 5.10 Prefixes being announced from the AfriNIC address blocks: 35931 Unique aggregates announced from the AfriNIC address blocks: 11658 AfriNIC Region origin ASes present in the Internet Routing Table: 1613 AfriNIC Prefixes per ASN: 22.28 AfriNIC Region origin ASes announcing only one prefix: 559 AfriNIC Region transit ASes present in the Internet Routing Table: 332 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: 948 Number of AfriNIC addresses announced to Internet: 107355648 Equivalent to 6 /8s, 102 /16s and 30 /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 9218 8883 41 CHINAMOBILE-CN China Mobile Communicati 7545 5911 789 698 TPG-INTERNET-AP TPG Telecom Limited, AU 7552 3607 1330 19 VIETEL-AS-AP Viettel Group, VN 7713 3496 1038 51 TELKOMNET-AS-AP PT Telekomunikasi Indon 45899 3424 1880 56 VNPT-AS-VN VNPT Corp, VN 9498 2395 491 238 BBIL-AP BHARTI Airtel Ltd., IN 4766 2254 11119 595 KIXS-AS-KR Korea Telecom, KR 45090 2130 1438 79 TENCENT-NET-AP Shenzhen Tencent Compute 4755 2115 429 197 TATACOMM-AS TATA Communications formerl 24560 2044 855 372 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 6217 10270 2702 AMAZON-02, US 11492 4473 297 692 CABLEONE, US 22773 3931 3071 358 ASN-CXA-ALL-CCI-22773-RDC, US 7155 3900 264 31 VIASAT-SP-BACKBONE, US 16625 3617 1855 2553 AKAMAI-AS, US 6327 3430 1318 61 SHAW, CA 749 2882 50780 2138 DNIC-AS-00749, US 30036 2613 373 131 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 6816 1730 149 UNI2-AS, ES 8551 4009 374 39 BEZEQ-INTERNATIONAL-AS Bezeqint Interne 20940 3913 3360 192 AKAMAI-ASN1, NL 39891 3819 220 34 ALJAWWALSTC-AS, SA 12389 2900 2273 906 ROSTELECOM-AS, RU 6849 2761 355 21 UKRTELNET, UA 9009 2464 245 1276 M247, GB 34984 2237 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 10551 3392 560 Uninet S.A. de C.V., MX 10620 3466 518 753 Telmex Colombia S.A., CO 11830 2430 369 63 Instituto Costarricense de Electricidad 13999 1736 294 473 Mega Cable, S.A. de C.V., MX 6503 1454 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 1083 369 21 Telefonica del Peru S.A.A., PE 11664 1006 190 446 Techtel LMDS Comunicaciones Interactiva 11172 960 133 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 1663 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 903 65 59 ORANGE-COTE-IVOIRE, CI 36935 771 520 42 Vodafone-, EG 6713 612 1863 34 IAM-AS, MA 15399 520 51 35 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 10551 3392 560 Uninet S.A. de C.V., MX 9808 9218 8883 41 CHINAMOBILE-CN China Mobile Communicati 12479 6816 1730 149 UNI2-AS, ES 16509 6217 10270 2702 AMAZON-02, US 7545 5911 789 698 TPG-INTERNET-AP TPG Telecom Limited, AU 11492 4473 297 692 CABLEONE, US 8551 4009 374 39 BEZEQ-INTERNATIONAL-AS Bezeqint Interne 22773 3931 3071 358 ASN-CXA-ALL-CCI-22773-RDC, US 20940 3913 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 9218 9177 CHINAMOBILE-CN China Mobile Communications Grou 12479 6816 6667 UNI2-AS, ES 7545 5911 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 4473 3781 CABLEONE, US 20940 3913 3721 AKAMAI-ASN1, NL 7552 3607 3588 VIETEL-AS-AP Viettel Group, VN 22773 3931 3573 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 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 /13:588 /14:1200 /15:2093 /16:13504 /17:8181 /18:13752 /19:24826 /20:42339 /21:50883 /22:107040 /23:94239 /24:520914 /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 5794 6816 UNI2-AS, ES 8151 4209 10551 Uninet S.A. de C.V., MX 8551 3475 4009 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo 11492 3379 4473 CABLEONE, US 6327 3243 3430 SHAW, CA 39891 3131 3819 ALJAWWALSTC-AS, SA 7155 2990 3900 VIASAT-SP-BACKBONE, US 22773 2936 3931 ASN-CXA-ALL-CCI-22773-RDC, US 6849 2623 2761 UKRTELNET, UA 30036 2269 2613 MEDIACOM-ENTERPRISE-BUSINESS, US Complete listing at https://bgp.nsrc.org/REN/Singapore/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:1927 2:1035 3:154 4:7 5:3791 6:103 7:5 8:1525 9:1 11:172 12:1711 13:294 14:2373 15:192 16:45 17:381 18:157 20:194 21:4 22:188 23:5596 24:2272 25:4 27:2598 29:19 31:2421 32:94 34:1 35:73 36:1777 37:4422 38:2773 39:729 40:153 41:3924 42:1086 43:2154 44:291 45:15960 46:4119 47:312 49:1657 50:1931 51:99 52:1410 53:1 54:363 55:708 56:8 57:59 58:1689 59:1115 60:957 61:2257 62:2478 63:1952 64:5490 65:2301 66:4804 67:2970 68:1185 69:4139 70:1340 71:657 72:3047 74:2659 75:1388 76:589 77:2168 78:1836 79:3116 80:1980 81:1601 82:1484 83:1201 84:1344 85:2895 86:706 87:1957 88:1092 89:3259 90:524 91:7605 92:1985 93:2582 94:3475 95:3861 96:1295 97:348 98:988 99:739 100:74 101:1081 102:2045 103:28802 104:4362 105:465 106:856 107:2536 108:821 109:4208 110:2053 111:3261 112:2026 113:1453 114:1483 115:1957 116:1879 117:2537 118:2328 119:1883 120:1669 121:1012 122:2524 123:2098 124:1536 125:2047 128:1168 129:1079 130:958 131:2043 132:792 133:373 134:1920 135:289 136:883 137:857 138:2426 139:1494 140:853 141:1382 142:1286 143:1472 144:1206 145:343 146:1795 147:1480 148:2220 149:1701 150:856 151:1082 152:1838 153:458 154:3517 155:1435 156:1768 157:1225 158:1034 159:2085 160:2465 161:1315 162:3449 163:1245 164:1625 165:1613 166:698 167:1734 168:3759 169:708 170:4445 171:827 172:3141 173:3076 174:1021 175:1143 176:3510 177:4638 178:3477 179:2023 180:2317 181:2945 182:3190 183:1949 184:2386 185:19445 186:4393 187:3634 188:3862 189:3166 190:8877 191:1321 192:10974 193:8583 194:6953 195:4936 196:2968 197:2409 198:5978 199:6020 200:7424 201:5673 202:10097 203:9973 204:4560 205:3380 206:3691 207:3361 208:4047 209:4651 210:4045 211:2340 212:3984 213:3423 214:1157 215:67 216:6426 217:2670 218:1242 219:406 220:1672 221:977 222:670 223:2115 End of report