IPv4 R&E Routing Table Report 23:05 GMT Wed 20 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: 880314 Prefixes after maximum aggregation (per Origin AS): 334755 Deaggregation factor: 2.63 Unique aggregates announced (without unneeded subnets): 429943 Number of IPv4 prefixes with a valid ROA: 315158 Number of IPv4 prefixes with an invalid ROA: 1195 Number of IPv4 prefixes with no ROA: 563961 Total ASes present in the Internet Routing Table: 72841 Prefixes per ASN: 12.09 Origin-only ASes present in the Internet Routing Table: 62526 Origin ASes announcing only one prefix: 25724 Transit ASes present in the Internet Routing Table: 10315 Transit-only ASes present in the Internet Routing Table: 375 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: 873 Number of instances of unregistered ASNs: 878 Number of 32-bit ASNs allocated by the RIRs: 39139 Number of 32-bit ASNs visible in the Routing Table: 32479 Prefixes from 32-bit ASNs in the Routing Table: 152870 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: 510 Number of addresses announced to Internet: 3066112000 Equivalent to 182 /8s, 193 /16s and 40 /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: 295731 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 229024 Total APNIC prefixes after maximum aggregation: 65972 APNIC Deaggregation factor: 3.47 Prefixes being announced from the APNIC address blocks: 223887 Unique aggregates announced from the APNIC address blocks: 94599 APNIC Region origin ASes present in the Internet Routing Table: 12490 APNIC Prefixes per ASN: 17.93 APNIC Region origin ASes announcing only one prefix: 3548 APNIC Region transit ASes present in the Internet Routing Table: 1716 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: 7755 Number of APNIC addresses announced to Internet: 773377536 Equivalent to 46 /8s, 24 /16s and 206 /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: 259425 Total ARIN prefixes after maximum aggregation: 119369 ARIN Deaggregation factor: 2.17 Prefixes being announced from the ARIN address blocks: 259540 Unique aggregates announced from the ARIN address blocks: 124438 ARIN Region origin ASes present in the Internet Routing Table: 18930 ARIN Prefixes per ASN: 13.71 ARIN Region origin ASes announcing only one prefix: 6899 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: 4437 Number of ARIN addresses announced to Internet: 1295173120 Equivalent to 77 /8s, 50 /16s and 198 /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: 248919 Total RIPE prefixes after maximum aggregation: 115926 RIPE Deaggregation factor: 2.15 Prefixes being announced from the RIPE address blocks: 246282 Unique aggregates announced from the RIPE address blocks: 150468 RIPE Region origin ASes present in the Internet Routing Table: 28110 RIPE Prefixes per ASN: 8.76 RIPE Region origin ASes announcing only one prefix: 12055 RIPE Region transit ASes present in the Internet Routing Table: 4009 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: 10697 Number of RIPE addresses announced to Internet: 713790464 Equivalent to 42 /8s, 139 /16s and 148 /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: 114391 Total LACNIC prefixes after maximum aggregation: 27399 LACNIC Deaggregation factor: 4.18 Prefixes being announced from the LACNIC address blocks: 114276 Unique aggregates announced from the LACNIC address blocks: 48458 LACNIC Region origin ASes present in the Internet Routing Table: 10945 LACNIC Prefixes per ASN: 10.44 LACNIC Region origin ASes announcing only one prefix: 2661 LACNIC Region transit ASes present in the Internet Routing Table: 2213 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: 176089856 Equivalent to 10 /8s, 126 /16s and 235 /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: 27682 Total AfriNIC prefixes after maximum aggregation: 5422 AfriNIC Deaggregation factor: 5.11 Prefixes being announced from the AfriNIC address blocks: 35819 Unique aggregates announced from the AfriNIC address blocks: 11562 AfriNIC Region origin ASes present in the Internet Routing Table: 1615 AfriNIC Prefixes per ASN: 22.18 AfriNIC Region origin ASes announcing only one prefix: 561 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: 26 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 948 Number of AfriNIC addresses announced to Internet: 107382016 Equivalent to 6 /8s, 102 /16s and 133 /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 9124 8883 41 CHINAMOBILE-CN China Mobile Communicati 7545 5913 789 697 TPG-INTERNET-AP TPG Telecom Limited, AU 7552 3610 1330 19 VIETEL-AS-AP Viettel Group, VN 7713 3498 1039 53 TELKOMNET-AS-AP PT Telekomunikasi Indon 45899 3423 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 2130 1438 79 TENCENT-NET-AP Shenzhen Tencent Compute 4755 2115 429 197 TATACOMM-AS TATA Communications formerl 24560 2048 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 6210 10266 2695 AMAZON-02, US 11492 4473 297 692 CABLEONE, US 22773 3934 3072 359 ASN-CXA-ALL-CCI-22773-RDC, US 7155 3900 264 31 VIASAT-SP-BACKBONE, US 16625 3621 1857 2555 AKAMAI-AS, US 6327 3430 1318 61 SHAW, CA 749 2882 50780 2138 DNIC-AS-00749, US 30036 2618 374 126 MEDIACOM-ENTERPRISE-BUSINESS, US 209 2522 4962 424 CENTURYLINK-US-LEGACY-QWEST, US 20115 2253 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 6791 1730 147 UNI2-AS, ES 8551 4010 374 39 BEZEQ-INTERNATIONAL-AS Bezeqint Interne 20940 3914 3360 192 AKAMAI-ASN1, NL 39891 3819 220 34 ALJAWWALSTC-AS, SA 12389 2901 2273 906 ROSTELECOM-AS, RU 6849 2751 355 21 UKRTELNET, UA 9009 2471 247 1283 M247, GB 34984 2236 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 10570 3392 560 Uninet S.A. de C.V., MX 10620 3468 518 752 Telmex Colombia S.A., CO 11830 2430 369 63 Instituto Costarricense de Electricidad 13999 1754 296 469 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 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 1659 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 613 1863 34 IAM-AS, MA 15399 517 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 10570 3392 560 Uninet S.A. de C.V., MX 9808 9124 8883 41 CHINAMOBILE-CN China Mobile Communicati 12479 6791 1730 147 UNI2-AS, ES 16509 6210 10266 2695 AMAZON-02, US 7545 5913 789 697 TPG-INTERNET-AP TPG Telecom Limited, AU 11492 4473 297 692 CABLEONE, US 8551 4010 374 39 BEZEQ-INTERNATIONAL-AS Bezeqint Interne 22773 3934 3072 359 ASN-CXA-ALL-CCI-22773-RDC, US 20940 3914 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 9124 9083 CHINAMOBILE-CN China Mobile Communications Grou 12479 6791 6644 UNI2-AS, ES 7545 5913 5216 TPG-INTERNET-AP TPG Telecom Limited, AU 8551 4010 3971 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 3914 3722 AKAMAI-ASN1, NL 7552 3610 3591 VIETEL-AS-AP Viettel Group, VN 22773 3934 3575 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 23.135.40.0/24 Origin: 7018 ATT-INTERNET4, US 23.135.40.0/24 Transit: 6453 AS6453, 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 /10:39 /11:100 /12:303 /13:588 /14:1199 /15:2092 /16:13490 /17:8178 /18:13753 /19:24836 /20:42343 /21:50880 /22:107097 /23:94302 /24:521077 /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 5773 6791 UNI2-AS, ES 8151 4228 10570 Uninet S.A. de C.V., MX 8551 3476 4010 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 2939 3934 ASN-CXA-ALL-CCI-22773-RDC, US 6849 2613 2751 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) ---------------------------------------------- 1:1927 2:1035 3:154 4:7 5:3784 6:103 7:5 8:1527 9:1 11:172 12:1710 13:298 14:2375 15:193 16:45 17:381 18:154 20:194 21:4 22:188 23:5610 24:2281 25:6 27:2600 29:19 31:2424 32:93 34:1 35:73 36:1780 37:4410 38:2806 39:697 40:153 41:3931 42:1086 43:2181 44:288 45:15963 46:4107 47:308 49:1674 50:1922 51:99 52:1412 53:1 54:363 55:713 56:8 57:59 58:1687 59:1117 60:957 61:2260 62:2478 63:1948 64:5490 65:2299 66:4809 67:2973 68:1197 69:4126 70:1338 71:657 72:3047 74:2658 75:1387 76:590 77:2178 78:1837 79:3117 80:1976 81:1592 82:1482 83:1203 84:1351 85:2894 86:705 87:1961 88:1094 89:3268 90:521 91:7603 92:1987 93:2588 94:3479 95:3866 96:1297 97:351 98:991 99:739 100:75 101:1282 102:2053 103:28841 104:4356 105:466 106:856 107:2513 108:823 109:4207 110:2055 111:3248 112:2029 113:1454 114:1485 115:1958 116:1879 117:2514 118:2338 119:1885 120:1662 121:1017 122:2538 123:2101 124:1536 125:2048 128:1168 129:1087 130:953 131:2038 132:794 133:373 134:1917 135:289 136:882 137:860 138:2439 139:1497 140:857 141:1389 142:1282 143:1467 144:1206 145:343 146:1788 147:1485 148:2219 149:1726 150:853 151:1082 152:1848 153:458 154:3518 155:1428 156:1771 157:1226 158:1035 159:2095 160:2465 161:1308 162:3451 163:1244 164:1628 165:1615 166:695 167:1735 168:3776 169:709 170:4431 171:827 172:3133 173:3076 174:1021 175:1143 176:3514 177:4618 178:3476 179:2022 180:2308 181:2947 182:3191 183:1950 184:2385 185:19440 186:4372 187:3644 188:3855 189:3175 190:8873 191:1324 192:10973 193:8589 194:6954 195:4948 196:2893 197:2403 198:5977 199:6015 200:7413 201:5669 202:10102 203:9974 204:4550 205:3381 206:3693 207:3353 208:4045 209:4632 210:4049 211:2340 212:3990 213:3421 214:1111 215:66 216:6419 217:2657 218:1250 219:406 220:1673 221:978 222:670 223:2117 End of report