IPv4 R&E Routing Table Report 23:05 GMT Wed 13 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: 880140 Prefixes after maximum aggregation (per Origin AS): 334378 Deaggregation factor: 2.63 Unique aggregates announced (without unneeded subnets): 429457 Number of IPv4 prefixes with a valid ROA: 314595 Number of IPv4 prefixes with an invalid ROA: 1164 Number of IPv4 prefixes with no ROA: 564381 Total ASes present in the Internet Routing Table: 72786 Prefixes per ASN: 12.09 Origin-only ASes present in the Internet Routing Table: 62483 Origin ASes announcing only one prefix: 25682 Transit ASes present in the Internet Routing Table: 10303 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: 1025 Number of instances of unregistered ASNs: 1030 Number of 32-bit ASNs allocated by the RIRs: 39077 Number of 32-bit ASNs visible in the Routing Table: 32421 Prefixes from 32-bit ASNs in the Routing Table: 152503 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: 654 Number of addresses announced to Internet: 3066428672 Equivalent to 182 /8s, 197 /16s and 253 /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: 295619 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 228894 Total APNIC prefixes after maximum aggregation: 65885 APNIC Deaggregation factor: 3.47 Prefixes being announced from the APNIC address blocks: 223777 Unique aggregates announced from the APNIC address blocks: 94477 APNIC Region origin ASes present in the Internet Routing Table: 12480 APNIC Prefixes per ASN: 17.93 APNIC Region origin ASes announcing only one prefix: 3553 APNIC Region transit ASes present in the Internet Routing Table: 1703 Average APNIC Region AS path length visible: 4.0 Max APNIC Region AS path length visible: 27 Number of APNIC region 32-bit ASNs visible in the Routing Table: 7740 Number of APNIC addresses announced to Internet: 773323776 Equivalent to 46 /8s, 23 /16s and 252 /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: 259280 Total ARIN prefixes after maximum aggregation: 119202 ARIN Deaggregation factor: 2.18 Prefixes being announced from the ARIN address blocks: 259428 Unique aggregates announced from the ARIN address blocks: 124159 ARIN Region origin ASes present in the Internet Routing Table: 18913 ARIN Prefixes per ASN: 13.72 ARIN Region origin ASes announcing only one prefix: 6889 ARIN Region transit ASes present in the Internet Routing Table: 1883 Average ARIN Region AS path length visible: 4.3 Max ARIN Region AS path length visible: 39 Number of ARIN region 32-bit ASNs visible in the Routing Table: 4421 Number of ARIN addresses announced to Internet: 1294979840 Equivalent to 77 /8s, 47 /16s and 211 /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: 248799 Total RIPE prefixes after maximum aggregation: 115785 RIPE Deaggregation factor: 2.15 Prefixes being announced from the RIPE address blocks: 246172 Unique aggregates announced from the RIPE address blocks: 150381 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: 12030 RIPE Region transit ASes present in the Internet Routing Table: 4001 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: 10667 Number of RIPE addresses announced to Internet: 713979904 Equivalent to 42 /8s, 142 /16s and 120 /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: 114393 Total LACNIC prefixes after maximum aggregation: 27352 LACNIC Deaggregation factor: 4.18 Prefixes being announced from the LACNIC address blocks: 114288 Unique aggregates announced from the LACNIC address blocks: 48301 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: 2651 LACNIC Region transit ASes present in the Internet Routing Table: 2219 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: 8643 Number of LACNIC addresses announced to Internet: 176327424 Equivalent to 10 /8s, 130 /16s and 139 /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: 27749 Total AfriNIC prefixes after maximum aggregation: 5445 AfriNIC Deaggregation factor: 5.10 Prefixes being announced from the AfriNIC address blocks: 35821 Unique aggregates announced from the AfriNIC address blocks: 11610 AfriNIC Region origin ASes present in the Internet Routing Table: 1617 AfriNIC Prefixes per ASN: 22.15 AfriNIC Region origin ASes announcing only one prefix: 559 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: 107359488 Equivalent to 6 /8s, 102 /16s and 45 /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 9212 8883 41 CHINAMOBILE-CN China Mobile Communicati 7545 5910 789 697 TPG-INTERNET-AP TPG Telecom Limited, AU 7552 3586 1330 19 VIETEL-AS-AP Viettel Group, VN 7713 3498 1038 51 TELKOMNET-AS-AP PT Telekomunikasi Indon 45899 3433 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 2129 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 6146 10256 2668 AMAZON-02, US 11492 4471 296 694 CABLEONE, US 22773 3931 3071 359 ASN-CXA-ALL-CCI-22773-RDC, US 7155 3900 264 31 VIASAT-SP-BACKBONE, US 16625 3622 1857 2557 AKAMAI-AS, US 6327 3430 1318 61 SHAW, CA 749 2882 50780 2138 DNIC-AS-00749, US 30036 2616 374 119 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 4010 374 39 BEZEQ-INTERNATIONAL-AS Bezeqint Interne 20940 3910 3360 192 AKAMAI-ASN1, NL 39891 3819 220 34 ALJAWWALSTC-AS, SA 12389 2906 2274 908 ROSTELECOM-AS, RU 6849 2783 355 21 UKRTELNET, UA 9009 2464 245 1276 M247, GB 34984 2230 357 629 TELLCOM-AS, TR 58224 1806 931 605 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 10542 3391 557 Uninet S.A. de C.V., MX 10620 3463 518 756 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 1453 355 524 Axtel, S.A.B. de C.V., MX 28573 1385 2333 253 CLARO S.A., BR 3816 1253 666 148 COLOMBIA TELECOMUNICACIONES S.A. ESP, C 6147 1086 369 21 Telefonica del Peru S.A.A., PE 11664 1009 193 449 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 1645 393 21 LINKdotNET-AS, EG 24835 1396 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 768 520 42 Vodafone-, EG 6713 613 1863 34 IAM-AS, MA 15399 520 51 35 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 10542 3391 557 Uninet S.A. de C.V., MX 9808 9212 8883 41 CHINAMOBILE-CN China Mobile Communicati 12479 6823 1730 149 UNI2-AS, ES 16509 6146 10256 2668 AMAZON-02, US 7545 5910 789 697 TPG-INTERNET-AP TPG Telecom Limited, AU 11492 4471 296 694 CABLEONE, US 8551 4010 374 39 BEZEQ-INTERNATIONAL-AS Bezeqint Interne 22773 3931 3071 359 ASN-CXA-ALL-CCI-22773-RDC, US 20940 3910 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 9212 9171 CHINAMOBILE-CN China Mobile Communications Grou 12479 6823 6674 UNI2-AS, ES 7545 5910 5213 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 4471 3777 CABLEONE, US 20940 3910 3718 AKAMAI-ASN1, NL 22773 3931 3572 ASN-CXA-ALL-CCI-22773-RDC, US 7552 3586 3567 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 19397 UNALLOCATED 8.5.244.0/24 174 COGENT-174, US 33123 UNALLOCATED 8.10.69.0/24 11168 SCC, US 19397 UNALLOCATED 8.15.12.0/24 3356 LEVEL3, 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 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 /13:587 /14:1199 /15:2091 /16:13500 /17:8179 /18:13745 /19:24829 /20:42346 /21:50836 /22:106925 /23:94209 /24:521215 /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 5801 6823 UNI2-AS, ES 8151 4204 10542 Uninet S.A. de C.V., MX 8551 3476 4010 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo 11492 3377 4471 CABLEONE, US 6327 3243 3430 SHAW, CA 39891 3131 3819 ALJAWWALSTC-AS, SA 7155 2990 3900 VIASAT-SP-BACKBONE, US 22773 2935 3931 ASN-CXA-ALL-CCI-22773-RDC, US 6849 2641 2783 UKRTELNET, UA 30036 2272 2616 MEDIACOM-ENTERPRISE-BUSINESS, US Complete listing at https://bgp.nsrc.org/REN/Singapore/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:1924 2:1037 3:154 4:7 5:3795 6:103 7:5 8:1523 9:1 11:172 12:1708 13:281 14:2376 15:193 16:45 17:381 18:147 20:194 21:4 22:188 23:5587 24:2277 25:4 27:2601 29:19 31:2419 32:93 34:1 35:72 36:1776 37:4413 38:2766 39:726 40:153 41:3933 42:1075 43:2157 44:288 45:15993 46:4120 47:318 49:1657 50:1924 51:99 52:1410 53:1 54:364 55:709 56:8 57:59 58:1689 59:1114 60:957 61:2258 62:2477 63:1953 64:5487 65:2302 66:4814 67:2972 68:1180 69:4142 70:1342 71:658 72:3054 74:2656 75:1389 76:588 77:2166 78:1843 79:3111 80:1958 81:1603 82:1482 83:1194 84:1348 85:2897 86:711 87:1961 88:1094 89:3265 90:524 91:7607 92:1988 93:2585 94:3466 95:3860 96:1299 97:346 98:987 99:739 100:74 101:1284 102:2053 103:28796 104:4364 105:466 106:841 107:2533 108:818 109:4216 110:2050 111:3261 112:2029 113:1454 114:1474 115:1951 116:1879 117:2539 118:2330 119:1883 120:1669 121:1012 122:2525 123:2100 124:1536 125:2047 128:1158 129:1215 130:950 131:2055 132:794 133:373 134:1920 135:289 136:881 137:874 138:2442 139:1492 140:848 141:1386 142:1291 143:1476 144:1235 145:342 146:1794 147:1487 148:2222 149:1701 150:853 151:1082 152:1833 153:459 154:3483 155:1435 156:1762 157:1222 158:1032 159:2085 160:2468 161:1311 162:3446 163:1240 164:1621 165:1614 166:697 167:1733 168:3766 169:708 170:4458 171:823 172:3122 173:3079 174:1019 175:1143 176:3510 177:4609 178:3477 179:2008 180:2319 181:2937 182:3190 183:1947 184:2386 185:19455 186:4390 187:3634 188:3871 189:3166 190:8897 191:1321 192:10969 193:8560 194:6945 195:4934 196:2966 197:2406 198:5984 199:6009 200:7411 201:5671 202:10173 203:9987 204:4546 205:3385 206:3688 207:3359 208:4043 209:4646 210:4049 211:2338 212:3984 213:3420 214:1156 215:67 216:6420 217:2664 218:1248 219:406 220:1672 221:977 222:670 223:2116 End of report