IPv4 R&E Routing Table Report 23:05 GMT Wed 27 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: 881364 Prefixes after maximum aggregation (per Origin AS): 335120 Deaggregation factor: 2.63 Unique aggregates announced (without unneeded subnets): 430435 Number of IPv4 prefixes with a valid ROA: 317689 Number of IPv4 prefixes with an invalid ROA: 1213 Number of IPv4 prefixes with no ROA: 562462 Total ASes present in the Internet Routing Table: 72889 Prefixes per ASN: 12.09 Origin-only ASes present in the Internet Routing Table: 62569 Origin ASes announcing only one prefix: 25710 Transit ASes present in the Internet Routing Table: 10320 Transit-only ASes present in the Internet Routing Table: 371 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: 854 Number of instances of unregistered ASNs: 857 Number of 32-bit ASNs allocated by the RIRs: 39216 Number of 32-bit ASNs visible in the Routing Table: 32539 Prefixes from 32-bit ASNs in the Routing Table: 153245 Number of bogon 32-bit ASNs visible in the Routing Table: 12 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 483 Number of addresses announced to Internet: 3066585856 Equivalent to 182 /8s, 200 /16s and 99 /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: 296269 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 228811 Total APNIC prefixes after maximum aggregation: 66029 APNIC Deaggregation factor: 3.47 Prefixes being announced from the APNIC address blocks: 223776 Unique aggregates announced from the APNIC address blocks: 94624 APNIC Region origin ASes present in the Internet Routing Table: 12516 APNIC Prefixes per ASN: 17.88 APNIC Region origin ASes announcing only one prefix: 3555 APNIC Region transit ASes present in the Internet Routing Table: 1712 Average APNIC Region AS path length visible: 4.1 Max APNIC Region AS path length visible: 33 Number of APNIC region 32-bit ASNs visible in the Routing Table: 7778 Number of APNIC addresses announced to Internet: 773367552 Equivalent to 46 /8s, 24 /16s and 167 /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: 260165 Total ARIN prefixes after maximum aggregation: 119535 ARIN Deaggregation factor: 2.18 Prefixes being announced from the ARIN address blocks: 260282 Unique aggregates announced from the ARIN address blocks: 124715 ARIN Region origin ASes present in the Internet Routing Table: 18944 ARIN Prefixes per ASN: 13.74 ARIN Region origin ASes announcing only one prefix: 6905 ARIN Region transit ASes present in the Internet Routing Table: 1870 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: 4455 Number of ARIN addresses announced to Internet: 1295334144 Equivalent to 77 /8s, 53 /16s and 59 /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: 249204 Total RIPE prefixes after maximum aggregation: 116058 RIPE Deaggregation factor: 2.15 Prefixes being announced from the RIPE address blocks: 246546 Unique aggregates announced from the RIPE address blocks: 150539 RIPE Region origin ASes present in the Internet Routing Table: 28118 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: 4016 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: 10706 Number of RIPE addresses announced to Internet: 713822464 Equivalent to 42 /8s, 140 /16s and 17 /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: 114504 Total LACNIC prefixes after maximum aggregation: 27376 LACNIC Deaggregation factor: 4.18 Prefixes being announced from the LACNIC address blocks: 114359 Unique aggregates announced from the LACNIC address blocks: 48473 LACNIC Region origin ASes present in the Internet Routing Table: 10948 LACNIC Prefixes per ASN: 10.45 LACNIC Region origin ASes announcing only one prefix: 2653 LACNIC Region transit ASes present in the Internet Routing Table: 2214 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: 176399872 Equivalent to 10 /8s, 131 /16s and 166 /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: 27826 Total AfriNIC prefixes after maximum aggregation: 5462 AfriNIC Deaggregation factor: 5.09 Prefixes being announced from the AfriNIC address blocks: 35918 Unique aggregates announced from the AfriNIC address blocks: 11665 AfriNIC Region origin ASes present in the Internet Routing Table: 1623 AfriNIC Prefixes per ASN: 22.13 AfriNIC Region origin ASes announcing only one prefix: 564 AfriNIC Region transit ASes present in the Internet Routing Table: 325 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: 957 Number of AfriNIC addresses announced to Internet: 107388416 Equivalent to 6 /8s, 102 /16s and 158 /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 9143 8883 41 CHINAMOBILE-CN China Mobile Communicati 7545 5910 789 696 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 3428 1880 56 VNPT-AS-VN VNPT Corp, VN 9498 2400 491 239 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 2115 429 197 TATACOMM-AS TATA Communications formerl 24560 2049 854 382 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 6263 10275 2716 AMAZON-02, US 11492 4474 297 690 CABLEONE, US 22773 3931 3072 358 ASN-CXA-ALL-CCI-22773-RDC, US 7155 3901 264 31 VIASAT-SP-BACKBONE, US 16625 3597 1839 2540 AKAMAI-AS, US 6327 3431 1318 61 SHAW, CA 749 2882 50780 2138 DNIC-AS-00749, US 30036 2620 374 130 MEDIACOM-ENTERPRISE-BUSINESS, US 209 2519 4962 422 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 6771 1730 150 UNI2-AS, ES 8551 4008 374 39 BEZEQ-INTERNATIONAL-AS Bezeqint Interne 20940 3920 3360 192 AKAMAI-ASN1, NL 39891 3819 220 34 ALJAWWALSTC-AS, SA 6849 2905 355 21 UKRTELNET, UA 12389 2897 2273 908 ROSTELECOM-AS, RU 9009 2478 247 1289 M247, GB 34984 2238 358 632 TELLCOM-AS, TR 58224 1813 931 613 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 10593 3390 567 Uninet S.A. de C.V., MX 10620 3471 518 741 Telmex Colombia S.A., CO 11830 2433 369 63 Instituto Costarricense de Electricidad 13999 1762 296 471 Mega Cable, S.A. de C.V., MX 6503 1454 355 526 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 1080 369 21 Telefonica del Peru S.A.A., PE 11664 1020 191 441 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 907 65 59 ORANGE-COTE-IVOIRE, CI 36935 773 520 42 Vodafone-, EG 6713 612 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 10593 3390 567 Uninet S.A. de C.V., MX 9808 9143 8883 41 CHINAMOBILE-CN China Mobile Communicati 12479 6771 1730 150 UNI2-AS, ES 16509 6263 10275 2716 AMAZON-02, US 7545 5910 789 696 TPG-INTERNET-AP TPG Telecom Limited, AU 11492 4474 297 690 CABLEONE, US 8551 4008 374 39 BEZEQ-INTERNATIONAL-AS Bezeqint Interne 22773 3931 3072 358 ASN-CXA-ALL-CCI-22773-RDC, US 20940 3920 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 9143 9102 CHINAMOBILE-CN China Mobile Communications Grou 12479 6771 6621 UNI2-AS, ES 7545 5910 5214 TPG-INTERNET-AP TPG Telecom Limited, AU 8551 4008 3969 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo 7155 3901 3870 VIASAT-SP-BACKBONE, US 39891 3819 3785 ALJAWWALSTC-AS, SA 11492 4474 3784 CABLEONE, US 20940 3920 3728 AKAMAI-ASN1, NL 22773 3931 3573 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 23.131.186.0/24 Origin: 174 COGENT-174, US 23.131.186.0/24 Transit: 2914 NTT-LTD-2914, 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 /10:40 /11:100 /12:303 /13:590 /14:1203 /15:2099 /16:13507 /17:8188 /18:13758 /19:24840 /20:42435 /21:50876 /22:107077 /23:94454 /24:521857 /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 5752 6771 UNI2-AS, ES 8151 4250 10593 Uninet S.A. de C.V., MX 8551 3474 4008 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo 11492 3380 4474 CABLEONE, US 6327 3244 3431 SHAW, CA 39891 3131 3819 ALJAWWALSTC-AS, SA 7155 2991 3901 VIASAT-SP-BACKBONE, US 22773 2936 3931 ASN-CXA-ALL-CCI-22773-RDC, US 6849 2756 2905 UKRTELNET, UA 30036 2276 2620 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 2:1036 3:154 4:7 5:3781 6:104 7:5 8:1531 9:1 11:172 12:1707 13:299 14:2369 15:193 16:45 17:382 18:159 20:191 21:4 22:188 23:5632 24:2283 25:6 27:2599 29:19 31:2412 32:93 34:1 35:73 36:1776 37:4418 38:2819 39:699 40:153 41:3947 42:1089 43:2174 44:292 45:15913 46:4106 47:311 49:1676 50:2157 51:99 52:1416 54:363 55:716 56:8 57:59 58:1692 59:1117 60:958 61:2254 62:2477 63:1947 64:5484 65:2317 66:4807 67:2970 68:1175 69:4154 70:1339 71:657 72:3044 74:2655 75:1385 76:591 77:2177 78:1842 79:3112 80:1966 81:1592 82:1498 83:1207 84:1353 85:2891 86:703 87:1953 88:1102 89:3281 90:520 91:7611 92:1997 93:2583 94:3496 95:3855 96:1304 97:351 98:987 99:736 100:75 101:1271 102:2061 103:28861 104:4354 105:467 106:857 107:2520 108:828 109:4196 110:2022 111:3244 112:2024 113:1471 114:1479 115:1962 116:1877 117:2516 118:2330 119:1858 120:1661 121:1017 122:2542 123:2094 124:1536 125:2053 128:1186 129:1090 130:956 131:2044 132:788 133:372 134:1906 135:289 136:886 137:855 138:2436 139:1498 140:848 141:1408 142:1285 143:1468 144:1212 145:343 146:1804 147:1465 148:2224 149:1725 150:849 151:1079 152:1845 153:456 154:3501 155:1420 156:1762 157:1227 158:1039 159:2127 160:2476 161:1311 162:3460 163:1254 164:1625 165:1610 166:696 167:1732 168:3766 169:832 170:4487 171:829 172:3134 173:3083 174:1022 175:1130 176:3516 177:4653 178:3503 179:2024 180:2316 181:2957 182:3194 183:1953 184:2386 185:19438 186:4333 187:3679 188:3852 189:3203 190:8858 191:1328 192:10977 193:8592 194:6977 195:4945 196:2983 197:2408 198:5974 199:6021 200:7393 201:5683 202:10092 203:9993 204:4546 205:3410 206:3693 207:3346 208:4048 209:4648 210:4057 211:2343 212:4006 213:3429 214:1156 215:67 216:6421 217:2655 218:1247 219:405 220:1674 221:977 222:670 223:2107 End of report