IPv4 R&E Routing Table Report 23:05 GMT Fri 15 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: 880209 Prefixes after maximum aggregation (per Origin AS): 334540 Deaggregation factor: 2.63 Unique aggregates announced (without unneeded subnets): 429666 Number of IPv4 prefixes with a valid ROA: 314530 Number of IPv4 prefixes with an invalid ROA: 1159 Number of IPv4 prefixes with no ROA: 564520 Total ASes present in the Internet Routing Table: 72818 Prefixes per ASN: 12.09 Origin-only ASes present in the Internet Routing Table: 62518 Origin ASes announcing only one prefix: 25693 Transit ASes present in the Internet Routing Table: 10300 Transit-only ASes present in the Internet Routing Table: 374 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: 1034 Number of instances of unregistered ASNs: 1040 Number of 32-bit ASNs allocated by the RIRs: 39110 Number of 32-bit ASNs visible in the Routing Table: 32442 Prefixes from 32-bit ASNs in the Routing Table: 152539 Number of bogon 32-bit ASNs visible in the Routing Table: 23 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 667 Number of addresses announced to Internet: 3066642688 Equivalent to 182 /8s, 201 /16s and 65 /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: 295678 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 228656 Total APNIC prefixes after maximum aggregation: 65881 APNIC Deaggregation factor: 3.47 Prefixes being announced from the APNIC address blocks: 223592 Unique aggregates announced from the APNIC address blocks: 94427 APNIC Region origin ASes present in the Internet Routing Table: 12478 APNIC Prefixes per ASN: 17.92 APNIC Region origin ASes announcing only one prefix: 3548 APNIC Region transit ASes present in the Internet Routing Table: 1703 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: 7742 Number of APNIC addresses announced to Internet: 773349632 Equivalent to 46 /8s, 24 /16s and 97 /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: 259454 Total ARIN prefixes after maximum aggregation: 119278 ARIN Deaggregation factor: 2.18 Prefixes being announced from the ARIN address blocks: 259551 Unique aggregates announced from the ARIN address blocks: 124288 ARIN Region origin ASes present in the Internet Routing Table: 18919 ARIN Prefixes per ASN: 13.72 ARIN Region origin ASes announcing only one prefix: 6887 ARIN Region transit ASes present in the Internet Routing Table: 1878 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: 4427 Number of ARIN addresses announced to Internet: 1295056640 Equivalent to 77 /8s, 48 /16s and 255 /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: 248927 Total RIPE prefixes after maximum aggregation: 115863 RIPE Deaggregation factor: 2.15 Prefixes being announced from the RIPE address blocks: 246262 Unique aggregates announced from the RIPE address blocks: 150450 RIPE Region origin ASes present in the Internet Routing Table: 28100 RIPE Prefixes per ASN: 8.76 RIPE Region origin ASes announcing only one prefix: 12035 RIPE Region transit ASes present in the Internet Routing Table: 4007 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: 10676 Number of RIPE addresses announced to Internet: 714132224 Equivalent to 42 /8s, 144 /16s and 203 /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: 114357 Total LACNIC prefixes after maximum aggregation: 27347 LACNIC Deaggregation factor: 4.18 Prefixes being announced from the LACNIC address blocks: 114257 Unique aggregates announced from the LACNIC address blocks: 48313 LACNIC Region origin ASes present in the Internet Routing Table: 10946 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: 2214 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: 8645 Number of LACNIC addresses announced to Internet: 176275712 Equivalent to 10 /8s, 129 /16s and 193 /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: 27781 Total AfriNIC prefixes after maximum aggregation: 5460 AfriNIC Deaggregation factor: 5.09 Prefixes being announced from the AfriNIC address blocks: 35880 Unique aggregates announced from the AfriNIC address blocks: 11646 AfriNIC Region origin ASes present in the Internet Routing Table: 1619 AfriNIC Prefixes per ASN: 22.16 AfriNIC Region origin ASes announcing only one prefix: 562 AfriNIC Region transit ASes present in the Internet Routing Table: 334 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: 952 Number of AfriNIC addresses announced to Internet: 107367936 Equivalent to 6 /8s, 102 /16s and 78 /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 9218 8883 41 CHINAMOBILE-CN China Mobile Communicati 7545 5910 789 698 TPG-INTERNET-AP TPG Telecom Limited, AU 7552 3607 1330 19 VIETEL-AS-AP Viettel Group, VN 7713 3496 1038 51 TELKOMNET-AS-AP PT Telekomunikasi Indon 45899 3426 1880 56 VNPT-AS-VN VNPT Corp, VN 9498 2395 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 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 6217 10270 2694 AMAZON-02, US 11492 4473 297 692 CABLEONE, US 22773 3931 3071 358 ASN-CXA-ALL-CCI-22773-RDC, US 7155 3900 264 31 VIASAT-SP-BACKBONE, US 16625 3627 1861 2558 AKAMAI-AS, US 6327 3430 1318 61 SHAW, CA 749 2882 50780 2138 DNIC-AS-00749, US 30036 2616 374 118 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 4009 374 39 BEZEQ-INTERNATIONAL-AS Bezeqint Interne 20940 3915 3360 192 AKAMAI-ASN1, NL 39891 3819 220 34 ALJAWWALSTC-AS, SA 12389 2902 2274 908 ROSTELECOM-AS, RU 6849 2761 355 21 UKRTELNET, UA 9009 2464 245 1276 M247, GB 34984 2235 357 632 TELLCOM-AS, TR 58224 1805 931 604 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 10547 3392 560 Uninet S.A. de C.V., MX 10620 3464 518 757 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 1254 667 147 COLOMBIA TELECOMUNICACIONES S.A. ESP, C 6147 1084 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 1473 523 33 RAYA-AS, EG 36992 1314 1519 263 ETISALAT-MISR, EG 36903 1199 545 114 MT-MPLS, MA 29571 902 65 59 ORANGE-COTE-IVOIRE, CI 36935 771 520 42 Vodafone-, EG 6713 613 1863 34 IAM-AS, MA 15399 520 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 10547 3392 560 Uninet S.A. de C.V., MX 9808 9218 8883 41 CHINAMOBILE-CN China Mobile Communicati 12479 6823 1730 149 UNI2-AS, ES 16509 6217 10270 2694 AMAZON-02, US 7545 5910 789 698 TPG-INTERNET-AP TPG Telecom Limited, AU 11492 4473 297 692 CABLEONE, US 8551 4009 374 39 BEZEQ-INTERNATIONAL-AS Bezeqint Interne 22773 3931 3071 358 ASN-CXA-ALL-CCI-22773-RDC, US 20940 3915 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 9218 9177 CHINAMOBILE-CN China Mobile Communications Grou 12479 6823 6674 UNI2-AS, ES 7545 5910 5212 TPG-INTERNET-AP TPG Telecom Limited, AU 8551 4009 3970 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 3915 3723 AKAMAI-ASN1, NL 7552 3607 3588 VIETEL-AS-AP Viettel Group, VN 22773 3931 3573 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 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 /13:588 /14:1200 /15:2092 /16:13504 /17:8177 /18:13755 /19:24826 /20:42356 /21:50890 /22:107037 /23:94278 /24:521027 /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 4205 10547 Uninet S.A. de C.V., MX 8551 3475 4009 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 2936 3931 ASN-CXA-ALL-CCI-22773-RDC, US 6849 2623 2761 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) ---------------------------------------------- 1:1926 2:1034 3:154 4:7 5:3792 6:103 7:5 8:1523 9:1 11:172 12:1712 13:294 14:2375 15:192 16:45 17:381 18:156 20:194 21:4 22:188 23:5591 24:2272 25:4 27:2598 29:19 31:2422 32:93 34:1 35:74 36:1777 37:4415 38:2771 39:730 40:153 41:3933 42:1087 43:2159 44:290 45:15961 46:4120 47:309 49:1657 50:1932 51:99 52:1410 53:1 54:363 55:708 56:8 57:59 58:1690 59:1114 60:957 61:2258 62:2478 63:1953 64:5490 65:2300 66:4813 67:2974 68:1182 69:4136 70:1340 71:657 72:3048 74:2660 75:1388 76:589 77:2170 78:1843 79:3115 80:1980 81:1603 82:1480 83:1199 84:1344 85:2895 86:706 87:1961 88:1092 89:3262 90:524 91:7600 92:1987 93:2584 94:3475 95:3861 96:1296 97:348 98:988 99:739 100:74 101:1081 102:2044 103:28806 104:4364 105:466 106:855 107:2537 108:822 109:4220 110:2051 111:3262 112:2027 113:1455 114:1476 115:1956 116:1880 117:2537 118:2328 119:1885 120:1668 121:1012 122:2524 123:2097 124:1536 125:2048 128:1167 129:1216 130:958 131:2045 132:792 133:373 134:1920 135:289 136:882 137:873 138:2442 139:1493 140:852 141:1383 142:1286 143:1473 144:1236 145:342 146:1796 147:1484 148:2223 149:1659 150:857 151:1082 152:1838 153:458 154:3496 155:1438 156:1772 157:1223 158:1033 159:2087 160:2468 161:1314 162:3449 163:1243 164:1619 165:1614 166:698 167:1733 168:3767 169:707 170:4440 171:827 172:3141 173:3079 174:1021 175:1143 176:3507 177:4605 178:3476 179:2013 180:2317 181:2945 182:3190 183:1947 184:2384 185:19438 186:4385 187:3634 188:3867 189:3162 190:8893 191:1322 192:10971 193:8578 194:6953 195:4934 196:2957 197:2401 198:5984 199:6019 200:7417 201:5674 202:10093 203:9978 204:4560 205:3372 206:3694 207:3361 208:4048 209:4653 210:4044 211:2341 212:3981 213:3421 214:1158 215:67 216:6427 217:2675 218:1248 219:406 220:1670 221:977 222:670 223:2115 End of report