IPv4 R&E Routing Table Report 23:05 GMT Tue 19 Dec, 2023 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: 929319 Prefixes after maximum aggregation (per Origin AS): 355896 Deaggregation factor: 2.61 Unique aggregates announced (without unneeded subnets): 455594 Number of IPv4 prefixes with a valid ROA: 433919 Number of IPv4 prefixes with an invalid ROA: 772 Number of IPv4 prefixes with no ROA: 494628 Total ASes present in the Internet Routing Table: 74963 Prefixes per ASN: 12.40 Origin-only ASes present in the Internet Routing Table: 64516 Origin ASes announcing only one prefix: 26545 Transit ASes present in the Internet Routing Table: 10447 Transit-only ASes present in the Internet Routing Table: 450 Paths with bogon ASNs present in the IPv4 Routing Table: 9 Average AS path length visible in the Internet Routing Table: 4.7 Max AS path length visible: 40 Max AS path prepend of ASN (203217) 33 Prefixes from unregistered ASNs in the Routing Table: 1011 Number of instances of unregistered ASNs: 1013 Number of 32-bit ASNs allocated by the RIRs: 43239 Number of 32-bit ASNs visible in the Routing Table: 35518 Prefixes from 32-bit ASNs in the Routing Table: 177875 Number of bogon 32-bit ASNs visible in the Routing Table: 9 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 510 Number of addresses announced to Internet: 3046984192 Equivalent to 181 /8s, 157 /16s and 74 /24s Percentage of available address space announced: 82.3 Percentage of allocated address space announced: 82.3 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: 309672 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 243973 Total APNIC prefixes after maximum aggregation: 71414 APNIC Deaggregation factor: 3.42 Prefixes being announced from the APNIC address blocks: 237168 Unique aggregates announced from the APNIC address blocks: 99434 APNIC Region origin ASes present in the Internet Routing Table: 13758 APNIC Prefixes per ASN: 17.24 APNIC Region origin ASes announcing only one prefix: 4148 APNIC Region transit ASes present in the Internet Routing Table: 1845 Average APNIC Region AS path length visible: 4.4 Max APNIC Region AS path length visible: 36 Number of APNIC region 32-bit ASNs visible in the Routing Table: 9159 Number of APNIC addresses announced to Internet: 770641664 Equivalent to 45 /8s, 239 /16s and 15 /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, 131072-153913 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: 272345 Total ARIN prefixes after maximum aggregation: 124150 ARIN Deaggregation factor: 2.19 Prefixes being announced from the ARIN address blocks: 277032 Unique aggregates announced from the ARIN address blocks: 132669 ARIN Region origin ASes present in the Internet Routing Table: 19022 ARIN Prefixes per ASN: 14.56 ARIN Region origin ASes announcing only one prefix: 6955 ARIN Region transit ASes present in the Internet Routing Table: 1849 Average ARIN Region AS path length visible: 4.4 Max ARIN Region AS path length visible: 24 Number of ARIN region 32-bit ASNs visible in the Routing Table: 4812 Number of ARIN addresses announced to Internet: 1275392512 Equivalent to 76 /8s, 4 /16s and 242 /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: 261883 Total RIPE prefixes after maximum aggregation: 124940 RIPE Deaggregation factor: 2.10 Prefixes being announced from the RIPE address blocks: 256401 Unique aggregates announced from the RIPE address blocks: 160746 RIPE Region origin ASes present in the Internet Routing Table: 28477 RIPE Prefixes per ASN: 9.00 RIPE Region origin ASes announcing only one prefix: 12116 RIPE Region transit ASes present in the Internet Routing Table: 3886 Average RIPE Region AS path length visible: 4.8 Max RIPE Region AS path length visible: 40 Number of RIPE region 32-bit ASNs visible in the Routing Table: 11487 Number of RIPE addresses announced to Internet: 714590720 Equivalent to 42 /8s, 151 /16s and 202 /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 196608-216475 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: 119744 Total LACNIC prefixes after maximum aggregation: 28654 LACNIC Deaggregation factor: 4.18 Prefixes being announced from the LACNIC address blocks: 118426 Unique aggregates announced from the LACNIC address blocks: 49388 LACNIC Region origin ASes present in the Internet Routing Table: 11051 LACNIC Prefixes per ASN: 10.72 LACNIC Region origin ASes announcing only one prefix: 2682 LACNIC Region transit ASes present in the Internet Routing Table: 2355 Average LACNIC Region AS path length visible: 5.3 Max LACNIC Region AS path length visible: 37 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 8900 Number of LACNIC addresses announced to Internet: 178257920 Equivalent to 10 /8s, 160 /16s and 0 /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: 30363 Total AfriNIC prefixes after maximum aggregation: 6030 AfriNIC Deaggregation factor: 5.04 Prefixes being announced from the AfriNIC address blocks: 39782 Unique aggregates announced from the AfriNIC address blocks: 12935 AfriNIC Region origin ASes present in the Internet Routing Table: 1816 AfriNIC Prefixes per ASN: 21.91 AfriNIC Region origin ASes announcing only one prefix: 644 AfriNIC Region transit ASes present in the Internet Routing Table: 343 Average AfriNIC Region AS path length visible: 5.4 Max AfriNIC Region AS path length visible: 28 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1160 Number of AfriNIC addresses announced to Internet: 107742976 Equivalent to 6 /8s, 108 /16s and 7 /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 9768 8734 47 CHINAMOBILE-CN China Mobile Communicati 7545 5672 784 686 TPG-INTERNET-AP TPG Telecom Limited, AU 18403 4470 347 25 FPT-AS-AP FPT Telecom Company, VN 7552 3645 1330 20 VIETEL-AS-AP Viettel Group, VN 7713 3599 1043 64 TELKOMNET-AS-AP PT Telekomunikasi Indon 45899 3269 1872 99 VNPT-AS-VN VNPT Corp, VN 9498 3264 494 251 BBIL-AP BHARTI Airtel Ltd., IN 24560 2652 854 372 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd 4766 2232 11258 588 KIXS-AS-KR Korea Telecom, KR 4755 2189 442 200 TATACOMM-AS TATA Communications formerl 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 9433 11196 3376 AMAZON-02, US 11492 4562 303 680 CABLEONE, US 7155 4167 288 96 VIASAT-SP-BACKBONE, US 6327 3567 1320 69 SHAW, CA 22773 3465 3033 286 ASN-CXA-ALL-CCI-22773-RDC, US 16625 3185 1410 2315 AKAMAI-AS, US 749 3163 54930 2415 DNIC-AS-00749, US 367 2964 3854 1418 DNIC-ASBLK-00306-00371, US 396982 2737 3637 384 GOOGLE-CLOUD-PLATFORM, US 7018 2525 23624 1572 ATT-INTERNET4, 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 7566 1714 146 UNI2-AS, ES 39891 4570 271 54 ALJAWWALSTC-AS, SA 20940 4005 3397 140 AKAMAI-ASN1, NL 9009 3500 301 1635 M247, RO 8551 3369 368 34 BEZEQ-INTERNATIONAL-AS Bezeqint Interne 12389 2905 2301 911 ROSTELECOM-AS, RU 34984 2328 360 591 TELLCOM-AS, TR 13188 1607 100 26 TRIOLAN, UA 58224 1589 887 594 TCI, IR 8452 1527 1852 14 TE-AS TE-AS, EG 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 12150 3380 601 UNINET, MX 10620 3519 497 886 Telmex Colombia S.A., CO 13999 2492 339 635 Mega Cable, S.A. de C.V., MX 11830 2005 369 64 Instituto Costarricense de Electricidad 28573 1344 2318 237 Claro NXT Telecomunicacoes Ltda, BR 3816 1306 787 197 COLOMBIA TELECOMUNICACIONES S.A. ESP, C 6503 1245 341 503 Axtel, S.A.B. de C.V., MX 11664 1097 177 431 Techtel LMDS Comunicaciones Interactiva 6147 1084 369 22 Telefonica del Peru S.A.A., PE 22884 1071 103 398 TOTAL PLAY TELECOMUNICACIONES SA DE CV, 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 1596 389 16 LINKdotNET-AS, EG 24835 1548 545 28 RAYA-AS, EG 36992 1360 1518 280 ETISALAT-MISR, EG 36903 1249 554 96 MT-MPLS, MA 29571 1053 68 50 ORANGE-COTE-IVOIRE, CI 36935 936 521 43 Vodafone-, EG 6713 551 1861 34 IAM-AS, MA 15399 534 56 53 WANANCHI-, KE 36914 526 82 3 KENET-AS, KE 37342 490 32 1 MOVITEL, MZ 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 12150 3380 601 UNINET, MX 9808 9768 8734 47 CHINAMOBILE-CN China Mobile Communicati 16509 9433 11196 3376 AMAZON-02, US 12479 7566 1714 146 UNI2-AS, ES 7545 5672 784 686 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4570 271 54 ALJAWWALSTC-AS, SA 11492 4562 303 680 CABLEONE, US 18403 4470 347 25 FPT-AS-AP FPT Telecom Company, VN 7155 4167 288 96 VIASAT-SP-BACKBONE, US 20940 4005 3397 140 AKAMAI-ASN1, NL 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 9768 9721 CHINAMOBILE-CN China Mobile Communications Grou 12479 7566 7420 UNI2-AS, ES 16509 9433 6057 AMAZON-02, US 7545 5672 4986 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4570 4516 ALJAWWALSTC-AS, SA 18403 4470 4445 FPT-AS-AP FPT Telecom Company, VN 7155 4167 4071 VIASAT-SP-BACKBONE, US 11492 4562 3882 CABLEONE, US 20940 4005 3865 AKAMAI-ASN1, NL 7552 3645 3625 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 33492 UNALLOCATED 8.6.184.0/23 3356 LEVEL3, US 33123 UNALLOCATED 8.10.69.0/24 174 COGENT-174, US 12169 UNALLOCATED 8.15.207.0/24 32787 PROLEXIC-TECHNOLOGIES-DDOS-M 40493 UNALLOCATED 8.17.26.0/24 17054 EXPEDIENT, US 53775 UNALLOCATED 8.20.88.0/24 7029 WINDSTREAM, US 62828 UNALLOCATED 8.21.130.0/24 3356 LEVEL3, US 393266 UNALLOCATED 8.23.52.0/24 46887 LIGHTOWER, US 396894 UNALLOCATED 8.28.201.0/24 3356 LEVEL3, US 394936 UNALLOCATED 8.33.224.0/24 22442 HOU-PHONOSCOPE, US 54338 UNALLOCATED 8.33.241.0/24 3356 LEVEL3, US Complete listing at https://bgp.nsrc.org/REN/Singapore/data-badAS Advertised Unallocated Addresses -------------------------------- Unassigned Network ASN Information AS Name 23.140.216.0/24 Origin: 27176 DATAWAGON, US 23.140.216.0/24 Transit: 20278 NEXEON, US 23.141.0.0/24 Origin: 395350 RESERVED, ZZ 23.141.0.0/24 Transit: 11426 TWC-11426-CAROLINAS, US 23.168.24.0/24 Origin: 393577 TRITAN, US 23.168.24.0/24 Transit: 1299 TWELVE99 Arelion, fka Telia Carrier, SE 23.176.160.0/24 Origin: 397327 RESERVED, ZZ 23.176.160.0/24 Transit: 19108 SUDDENLINK-COMMUNICATIONS, US 23.189.192.0/24 Origin: 27593 RESERVED, ZZ 23.189.192.0/24 Transit: 174 COGENT-174, US 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 /9:14 /10:37 /11:99 /12:298 /13:577 /14:1191 /15:2057 /16:13393 /17:8164 /18:13659 /19:24761 /20:43140 /21:51158 /22:110043 /23:99056 /24:561648 /25:0 /26:0 /27:0 /28:0 /29:1 /30:7 /31:0 /32:0 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 12479 6653 7566 UNI2-AS, ES 8151 6155 12150 UNINET, MX 11492 3476 4562 CABLEONE, US 6327 3371 3567 SHAW, CA 39891 3324 4570 ALJAWWALSTC-AS, SA 7155 3113 4167 VIASAT-SP-BACKBONE, US 8551 2846 3369 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo 22773 2531 3465 ASN-CXA-ALL-CCI-22773-RDC, US 30036 2130 2473 MEDIACOM-ENTERPRISE-BUSINESS, US 10620 2122 3519 Telmex Colombia S.A., CO Complete listing at https://bgp.nsrc.org/REN/Singapore/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:2264 2:1409 3:280 4:5 5:4395 6:163 7:6 8:1494 9:1 11:172 12:1489 13:372 14:2329 15:308 16:206 17:360 18:707 20:341 21:4 22:188 23:6555 24:2594 25:2 27:2560 29:19 31:2540 32:53 34:36 35:116 36:2093 37:4482 38:5731 39:882 40:147 41:4112 42:2152 43:2287 44:328 45:16620 46:4383 47:286 49:1895 50:1885 51:570 52:1596 54:386 55:839 56:5 57:126 58:1858 59:1104 60:1009 61:2477 62:2746 63:1906 64:5488 65:2348 66:4965 67:3044 68:1327 69:4050 70:1160 71:609 72:2926 74:2628 75:1551 76:625 77:2337 78:1821 79:3014 80:2111 81:1866 82:1520 83:1321 84:1606 85:2961 86:786 87:1965 88:1225 89:3941 90:652 91:7889 92:2182 93:2632 94:3572 95:3992 96:1299 97:316 98:1017 99:737 100:94 101:1146 102:2999 103:32307 104:4770 105:600 106:978 107:2755 108:1143 109:4171 110:2135 111:3153 112:2076 113:1706 114:1745 115:2005 116:1931 117:2561 118:2750 119:1943 120:1754 121:1242 122:2635 123:2176 124:1583 125:2755 128:1425 129:900 130:1057 131:1995 132:819 133:411 134:1720 135:294 136:908 137:982 138:2733 139:1547 140:1336 141:1351 142:1535 143:1530 144:1004 145:334 146:1999 147:1637 148:2489 149:2390 150:1012 151:1304 152:1840 153:528 154:5362 155:1370 156:2090 157:1369 158:1078 159:2201 160:2625 161:1618 162:3587 163:1625 164:1618 165:1862 166:1071 167:1743 168:3833 169:787 170:4688 171:969 172:3761 173:3008 174:891 175:1215 176:3562 177:4681 178:3520 179:2201 180:2336 181:3607 182:3405 183:2021 184:2264 185:20462 186:4805 187:4291 188:3992 189:3963 190:9297 191:1485 192:10958 193:8976 194:7336 195:5207 196:3134 197:2636 198:5903 199:6785 200:7992 201:6245 202:10189 203:10019 204:4566 205:3630 206:4393 207:3385 208:4081 209:4908 210:4320 211:2499 212:4209 213:3359 214:1122 215:49 216:6756 217:2767 218:1289 219:415 220:1798 221:1019 222:699 223:2192 End of report