IPv4 R&E Routing Table Report 23:05 GMT Tue 03 May, 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: 881471 Prefixes after maximum aggregation (per Origin AS): 335021 Deaggregation factor: 2.63 Unique aggregates announced (without unneeded subnets): 430407 Number of IPv4 prefixes with a valid ROA: 318705 Number of IPv4 prefixes with an invalid ROA: 1098 Number of IPv4 prefixes with no ROA: 561668 Total ASes present in the Internet Routing Table: 72878 Prefixes per ASN: 12.10 Origin-only ASes present in the Internet Routing Table: 62584 Origin ASes announcing only one prefix: 25692 Transit ASes present in the Internet Routing Table: 10294 Transit-only ASes present in the Internet Routing Table: 369 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: 841 Number of instances of unregistered ASNs: 846 Number of 32-bit ASNs allocated by the RIRs: 39272 Number of 32-bit ASNs visible in the Routing Table: 32554 Prefixes from 32-bit ASNs in the Routing Table: 153238 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: 484 Number of addresses announced to Internet: 3066594560 Equivalent to 182 /8s, 200 /16s and 133 /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: 296232 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 228878 Total APNIC prefixes after maximum aggregation: 66011 APNIC Deaggregation factor: 3.47 Prefixes being announced from the APNIC address blocks: 223781 Unique aggregates announced from the APNIC address blocks: 94713 APNIC Region origin ASes present in the Internet Routing Table: 12519 APNIC Prefixes per ASN: 17.88 APNIC Region origin ASes announcing only one prefix: 3543 APNIC Region transit ASes present in the Internet Routing Table: 1716 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: 7784 Number of APNIC addresses announced to Internet: 773381632 Equivalent to 46 /8s, 24 /16s and 222 /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: 260159 Total ARIN prefixes after maximum aggregation: 119530 ARIN Deaggregation factor: 2.18 Prefixes being announced from the ARIN address blocks: 260281 Unique aggregates announced from the ARIN address blocks: 124752 ARIN Region origin ASes present in the Internet Routing Table: 18946 ARIN Prefixes per ASN: 13.74 ARIN Region origin ASes announcing only one prefix: 6906 ARIN Region transit ASes present in the Internet Routing Table: 1872 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: 4464 Number of ARIN addresses announced to Internet: 1295403264 Equivalent to 77 /8s, 54 /16s and 73 /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: 249085 Total RIPE prefixes after maximum aggregation: 116039 RIPE Deaggregation factor: 2.15 Prefixes being announced from the RIPE address blocks: 246489 Unique aggregates announced from the RIPE address blocks: 150412 RIPE Region origin ASes present in the Internet Routing Table: 28111 RIPE Prefixes per ASN: 8.77 RIPE Region origin ASes announcing only one prefix: 12030 RIPE Region transit ASes present in the Internet Routing Table: 3999 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: 10709 Number of RIPE addresses announced to Internet: 713806592 Equivalent to 42 /8s, 139 /16s and 211 /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: 114533 Total LACNIC prefixes after maximum aggregation: 27357 LACNIC Deaggregation factor: 4.19 Prefixes being announced from the LACNIC address blocks: 114377 Unique aggregates announced from the LACNIC address blocks: 48567 LACNIC Region origin ASes present in the Internet Routing Table: 10949 LACNIC Prefixes per ASN: 10.45 LACNIC Region origin ASes announcing only one prefix: 2652 LACNIC Region transit ASes present in the Internet Routing Table: 2206 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: 8645 Number of LACNIC addresses announced to Internet: 176369152 Equivalent to 10 /8s, 131 /16s and 46 /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: 27975 Total AfriNIC prefixes after maximum aggregation: 5431 AfriNIC Deaggregation factor: 5.15 Prefixes being announced from the AfriNIC address blocks: 36059 Unique aggregates announced from the AfriNIC address blocks: 11546 AfriNIC Region origin ASes present in the Internet Routing Table: 1621 AfriNIC Prefixes per ASN: 22.24 AfriNIC Region origin ASes announcing only one prefix: 561 AfriNIC Region transit ASes present in the Internet Routing Table: 321 Average AfriNIC Region AS path length visible: 4.9 Max AfriNIC Region AS path length visible: 33 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 952 Number of AfriNIC addresses announced to Internet: 107361536 Equivalent to 6 /8s, 102 /16s and 53 /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 9138 8883 41 CHINAMOBILE-CN China Mobile Communicati 7545 5912 788 694 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 3430 1880 56 VNPT-AS-VN VNPT Corp, VN 9498 2402 499 240 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 2116 438 200 TATACOMM-AS TATA Communications formerl 24560 2052 854 379 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 6282 10277 2720 AMAZON-02, US 11492 4473 297 695 CABLEONE, US 22773 3932 3071 355 ASN-CXA-ALL-CCI-22773-RDC, US 7155 3901 264 31 VIASAT-SP-BACKBONE, US 16625 3592 1837 2538 AKAMAI-AS, US 6327 3432 1318 61 SHAW, CA 749 2882 50780 2138 DNIC-AS-00749, US 30036 2618 373 144 MEDIACOM-ENTERPRISE-BUSINESS, US 209 2519 4962 423 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 6781 1730 150 UNI2-AS, ES 8551 4009 374 39 BEZEQ-INTERNATIONAL-AS Bezeqint Interne 20940 3923 3360 192 AKAMAI-ASN1, NL 39891 3819 220 34 ALJAWWALSTC-AS, SA 12389 2897 2273 908 ROSTELECOM-AS, RU 6849 2854 355 21 UKRTELNET, UA 9009 2489 249 1294 M247, GB 34984 2238 358 632 TELLCOM-AS, TR 58224 1815 931 614 TCI, IR 13188 1610 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 10626 3392 562 Uninet S.A. de C.V., MX 10620 3475 519 738 Telmex Colombia S.A., CO 11830 2433 369 63 Instituto Costarricense de Electricidad 13999 1772 297 477 Mega Cable, S.A. de C.V., MX 6503 1453 355 526 Axtel, S.A.B. de C.V., MX 28573 1386 2333 253 CLARO S.A., BR 3816 1255 669 148 COLOMBIA TELECOMUNICACIONES S.A. ESP, C 6147 1080 369 21 Telefonica del Peru S.A.A., PE 11664 1022 192 443 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 1473 523 33 RAYA-AS, EG 36992 1314 1519 263 ETISALAT-MISR, EG 36903 1199 545 114 MT-MPLS, MA 29571 914 65 59 ORANGE-COTE-IVOIRE, CI 36935 773 520 42 Vodafone-, EG 6713 611 1863 34 IAM-AS, MA 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 10626 3392 562 Uninet S.A. de C.V., MX 9808 9138 8883 41 CHINAMOBILE-CN China Mobile Communicati 12479 6781 1730 150 UNI2-AS, ES 16509 6282 10277 2720 AMAZON-02, US 7545 5912 788 694 TPG-INTERNET-AP TPG Telecom Limited, AU 11492 4473 297 695 CABLEONE, US 8551 4009 374 39 BEZEQ-INTERNATIONAL-AS Bezeqint Interne 22773 3932 3071 355 ASN-CXA-ALL-CCI-22773-RDC, US 20940 3923 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 9138 9097 CHINAMOBILE-CN China Mobile Communications Grou 12479 6781 6631 UNI2-AS, ES 7545 5912 5218 TPG-INTERNET-AP TPG Telecom Limited, AU 8551 4009 3970 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo 7155 3901 3870 VIASAT-SP-BACKBONE, US 39891 3819 3785 ALJAWWALSTC-AS, SA 11492 4473 3778 CABLEONE, US 20940 3923 3731 AKAMAI-ASN1, NL 22773 3932 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 23.141.0.0/24 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 /14:1203 /15:2099 /16:13525 /17:8237 /18:13766 /19:24853 /20:42469 /21:50853 /22:107027 /23:94446 /24:521923 /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 5762 6781 UNI2-AS, ES 8151 4281 10626 Uninet S.A. de C.V., MX 8551 3475 4009 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo 11492 3379 4473 CABLEONE, US 6327 3245 3432 SHAW, CA 39891 3131 3819 ALJAWWALSTC-AS, SA 7155 2991 3901 VIASAT-SP-BACKBONE, US 22773 2939 3932 ASN-CXA-ALL-CCI-22773-RDC, US 6849 2710 2854 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) ---------------------------------------------- 1:1929 2:1036 3:154 4:7 5:3777 6:104 7:5 8:1530 9:1 11:172 12:1709 13:298 14:2371 15:195 16:45 17:385 18:160 20:191 21:4 22:188 23:5644 24:2282 25:6 27:2601 29:19 31:2421 32:93 34:1 35:73 36:1776 37:4421 38:2792 39:700 40:153 41:3960 42:1089 43:2176 44:293 45:15917 46:4109 47:306 49:1676 50:2156 51:100 52:1418 54:365 55:738 56:8 57:60 58:1695 59:1116 60:959 61:2248 62:2501 63:1948 64:5485 65:2318 66:4804 67:2966 68:1191 69:4135 70:1340 71:642 72:3047 74:2650 75:1389 76:583 77:2185 78:1852 79:3109 80:1982 81:1592 82:1490 83:1201 84:1352 85:2909 86:710 87:1964 88:1104 89:3280 90:520 91:7611 92:1992 93:2575 94:3496 95:3851 96:1307 97:350 98:985 99:737 100:75 101:1273 102:2063 103:28890 104:4365 105:466 106:873 107:2536 108:823 109:4209 110:2020 111:3235 112:2025 113:1474 114:1480 115:1969 116:1878 117:2515 118:2330 119:1857 120:1662 121:1016 122:2543 123:2095 124:1538 125:2054 128:1180 129:1092 130:956 131:2045 132:792 133:372 134:1912 135:289 136:880 137:852 138:2429 139:1499 140:852 141:1399 142:1290 143:1442 144:1207 145:343 146:1805 147:1463 148:2221 149:1721 150:845 151:1078 152:1847 153:458 154:3535 155:1430 156:1751 157:1225 158:1040 159:2128 160:2475 161:1261 162:3451 163:1255 164:1629 165:1609 166:699 167:1725 168:3773 169:835 170:4503 171:828 172:3140 173:3071 174:1024 175:1134 176:3511 177:4640 178:3496 179:2016 180:2317 181:2957 182:3208 183:1951 184:2384 185:19436 186:4330 187:3695 188:3849 189:3197 190:8852 191:1330 192:10977 193:8593 194:6974 195:4943 196:2998 197:2405 198:5923 199:6032 200:7395 201:5697 202:10086 203:9989 204:4555 205:3435 206:3693 207:3346 208:4028 209:4641 210:4056 211:2339 212:4008 213:3415 214:1156 215:67 216:6425 217:2663 218:1248 219:404 220:1670 221:977 222:670 223:2107 End of report