IPv4 R&E Routing Table Report 23:05 GMT Wed 19 Apr, 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: 910970 Prefixes after maximum aggregation (per Origin AS): 346807 Deaggregation factor: 2.63 Unique aggregates announced (without unneeded subnets): 448332 Number of IPv4 prefixes with a valid ROA: 389546 Number of IPv4 prefixes with an invalid ROA: 1941 Number of IPv4 prefixes with no ROA: 519483 Total ASes present in the Internet Routing Table: 74137 Prefixes per ASN: 12.29 Origin-only ASes present in the Internet Routing Table: 63671 Origin ASes announcing only one prefix: 26173 Transit ASes present in the Internet Routing Table: 10466 Transit-only ASes present in the Internet Routing Table: 432 Paths with bogon ASNs present in the IPv4 Routing Table: 29 Average AS path length visible in the Internet Routing Table: 4.6 Max AS path length visible: 204 Max AS path prepend of ASN (131246) 200 Prefixes from unregistered ASNs in the Routing Table: 1396 Number of instances of unregistered ASNs: 1396 Number of 32-bit ASNs allocated by the RIRs: 41679 Number of 32-bit ASNs visible in the Routing Table: 34405 Prefixes from 32-bit ASNs in the Routing Table: 169724 Number of bogon 32-bit ASNs visible in the Routing Table: 7 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 942 Number of addresses announced to Internet: 3060182528 Equivalent to 182 /8s, 102 /16s and 174 /24s Percentage of available address space announced: 82.7 Percentage of allocated address space announced: 82.7 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: 305706 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 236294 Total APNIC prefixes after maximum aggregation: 68432 APNIC Deaggregation factor: 3.45 Prefixes being announced from the APNIC address blocks: 230617 Unique aggregates announced from the APNIC address blocks: 97630 APNIC Region origin ASes present in the Internet Routing Table: 13302 APNIC Prefixes per ASN: 17.34 APNIC Region origin ASes announcing only one prefix: 3908 APNIC Region transit ASes present in the Internet Routing Table: 1786 Average APNIC Region AS path length visible: 4.3 Max APNIC Region AS path length visible: 204 Number of APNIC region 32-bit ASNs visible in the Routing Table: 8661 Number of APNIC addresses announced to Internet: 773029376 Equivalent to 46 /8s, 19 /16s and 126 /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: 267566 Total ARIN prefixes after maximum aggregation: 121609 ARIN Deaggregation factor: 2.20 Prefixes being announced from the ARIN address blocks: 270065 Unique aggregates announced from the ARIN address blocks: 130813 ARIN Region origin ASes present in the Internet Routing Table: 19030 ARIN Prefixes per ASN: 14.19 ARIN Region origin ASes announcing only one prefix: 6971 ARIN Region transit ASes present in the Internet Routing Table: 1890 Average ARIN Region AS path length visible: 4.3 Max ARIN Region AS path length visible: 28 Number of ARIN region 32-bit ASNs visible in the Routing Table: 4770 Number of ARIN addresses announced to Internet: 1284472064 Equivalent to 76 /8s, 143 /16s and 125 /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: 258601 Total RIPE prefixes after maximum aggregation: 121943 RIPE Deaggregation factor: 2.12 Prefixes being announced from the RIPE address blocks: 254524 Unique aggregates announced from the RIPE address blocks: 157688 RIPE Region origin ASes present in the Internet Routing Table: 28268 RIPE Prefixes per ASN: 9.00 RIPE Region origin ASes announcing only one prefix: 12038 RIPE Region transit ASes present in the Internet Routing Table: 3971 Average RIPE Region AS path length visible: 4.6 Max RIPE Region AS path length visible: 32 Number of RIPE region 32-bit ASNs visible in the Routing Table: 11123 Number of RIPE addresses announced to Internet: 717644544 Equivalent to 42 /8s, 198 /16s and 99 /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: 117640 Total LACNIC prefixes after maximum aggregation: 28192 LACNIC Deaggregation factor: 4.17 Prefixes being announced from the LACNIC address blocks: 116911 Unique aggregates announced from the LACNIC address blocks: 49223 LACNIC Region origin ASes present in the Internet Routing Table: 10975 LACNIC Prefixes per ASN: 10.65 LACNIC Region origin ASes announcing only one prefix: 2653 LACNIC Region transit ASes present in the Internet Routing Table: 2285 Average LACNIC Region AS path length visible: 5.3 Max LACNIC Region AS path length visible: 49 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 8770 Number of LACNIC addresses announced to Internet: 176643584 Equivalent to 10 /8s, 135 /16s and 94 /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: 29473 Total AfriNIC prefixes after maximum aggregation: 5805 AfriNIC Deaggregation factor: 5.08 Prefixes being announced from the AfriNIC address blocks: 37911 Unique aggregates announced from the AfriNIC address blocks: 12308 AfriNIC Region origin ASes present in the Internet Routing Table: 1733 AfriNIC Prefixes per ASN: 21.88 AfriNIC Region origin ASes announcing only one prefix: 603 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: 66 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1081 Number of AfriNIC addresses announced to Internet: 107673088 Equivalent to 6 /8s, 106 /16s and 246 /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 9457 8704 36 CHINAMOBILE-CN China Mobile Communicati 7545 5726 786 688 TPG-INTERNET-AP TPG Telecom Limited, AU 7552 3675 1331 21 VIETEL-AS-AP Viettel Group, VN 7713 3560 1043 65 TELKOMNET-AS-AP PT Telekomunikasi Indon 45899 3393 1872 94 VNPT-AS-VN VNPT Corp, VN 9498 2937 491 237 BBIL-AP BHARTI Airtel Ltd., IN 24560 2379 836 440 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd 4766 2303 11250 586 KIXS-AS-KR Korea Telecom, KR 4755 2176 442 196 TATACOMM-AS TATA Communications formerl 45090 2148 1438 79 TENCENT-NET-AP Shenzhen Tencent Compute 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 8193 10766 2953 AMAZON-02, US 11492 4543 301 602 CABLEONE, US 7155 3969 279 48 VIASAT-SP-BACKBONE, US 22773 3590 3057 283 ASN-CXA-ALL-CCI-22773-RDC, US 6327 3522 1320 64 SHAW, CA 16625 3155 1576 2351 AKAMAI-AS, US 749 3071 53111 2323 DNIC-AS-00749, US 396982 2630 3590 362 GOOGLE-CLOUD-PLATFORM, US 7018 2577 24117 1570 ATT-INTERNET4, US 30036 2510 362 438 MEDIACOM-ENTERPRISE-BUSINESS, 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 7237 1706 140 UNI2-AS, ES 39891 4833 286 59 ALJAWWALSTC-AS, SA 20940 4065 3399 163 AKAMAI-ASN1, NL 8551 3891 370 37 BEZEQ-INTERNATIONAL-AS Bezeqint Interne 12389 2893 2292 909 ROSTELECOM-AS, RU 9009 2660 250 1385 M247, RO 34984 2276 359 612 TELLCOM-AS, TR 6849 2018 307 18 UKRTELNET, UA 58224 1851 950 543 TCI, IR 13188 1606 100 26 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 11277 3343 585 Uninet S.A. de C.V., MX 10620 3503 507 854 Telmex Colombia S.A., CO 13999 2325 357 613 Mega Cable, S.A. de C.V., MX 11830 2247 369 64 Instituto Costarricense de Electricidad 28573 1334 2324 240 Claro NXT Telecomunicacoes Ltda, BR 6503 1303 339 514 Axtel, S.A.B. de C.V., MX 3816 1293 760 170 COLOMBIA TELECOMUNICACIONES S.A. ESP, C 6147 1132 370 22 Telefonica del Peru S.A.A., PE 11664 1101 180 448 Techtel LMDS Comunicaciones Interactiva 26615 1032 2498 45 TIM SA, BR 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 24835 1541 533 30 RAYA-AS, EG 24863 1537 393 23 LINKdotNET-AS, EG 36992 1338 1518 275 ETISALAT-MISR, EG 36903 1242 550 99 MT-MPLS, MA 29571 1024 67 51 ORANGE-COTE-IVOIRE, CI 36935 875 520 42 Vodafone-, EG 6713 551 1861 34 IAM-AS, MA 15399 535 54 47 WANANCHI-, KE 37342 493 32 1 MOVITEL, MZ 24757 488 73 5 EthioNet-AS, ET 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 11277 3343 585 Uninet S.A. de C.V., MX 9808 9457 8704 36 CHINAMOBILE-CN China Mobile Communicati 16509 8193 10766 2953 AMAZON-02, US 12479 7237 1706 140 UNI2-AS, ES 7545 5726 786 688 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4833 286 59 ALJAWWALSTC-AS, SA 11492 4543 301 602 CABLEONE, US 20940 4065 3399 163 AKAMAI-ASN1, NL 7155 3969 279 48 VIASAT-SP-BACKBONE, US 8551 3891 370 37 BEZEQ-INTERNATIONAL-AS Bezeqint Interne 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 9457 9421 CHINAMOBILE-CN China Mobile Communications Grou 12479 7237 7097 UNI2-AS, ES 16509 8193 5240 AMAZON-02, US 7545 5726 5038 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4833 4774 ALJAWWALSTC-AS, SA 11492 4543 3941 CABLEONE, US 7155 3969 3921 VIASAT-SP-BACKBONE, US 20940 4065 3902 AKAMAI-ASN1, NL 8551 3891 3854 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo 7552 3675 3654 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 3507 UNALLOCATED 5.105.166.0/24 213035 AS-SERVERION Serverion B.V., 33492 UNALLOCATED 8.6.184.0/23 3356 LEVEL3, US 33123 UNALLOCATED 8.10.69.0/24 11168 SCC, US 12169 UNALLOCATED 8.15.207.0/24 32787 PROLEXIC-TECHNOLOGIES-DDOS-M 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 6461 ZAYO-6461, US Complete listing at https://bgp.nsrc.org/REN/Singapore/data-badAS Advertised Unallocated Addresses -------------------------------- Unassigned Network ASN Information AS Name 23.131.185.0/24 Origin: 174 COGENT-174, US 23.131.185.0/24 Transit: 2914 NTT-LTD-2914, US 23.131.186.0/24 Origin: 174 COGENT-174, US 23.131.186.0/24 Transit: 2914 NTT-LTD-2914, US 23.131.187.0/24 Origin: 174 COGENT-174, US 23.131.187.0/24 Transit: 2914 NTT-LTD-2914, US 23.131.188.0/24 Origin: 174 COGENT-174, US 23.131.188.0/24 Transit: 2914 NTT-LTD-2914, US 23.139.232.0/24 Origin: 211619 MAXKO, HR 23.139.232.0/24 Transit: 42864 GIGANET-HU GigaNet Internet Service Prov 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 /10:38 /11:103 /12:299 /13:574 /14:1194 /15:2082 /16:13411 /17:8146 /18:13688 /19:24772 /20:43017 /21:50858 /22:108910 /23:97212 /24:546627 /25:0 /26:1 /27:1 /28:0 /29:1 /30:6 /31:0 /32:0 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 12479 6294 7237 UNI2-AS, ES 8151 5230 11277 Uninet S.A. de C.V., MX 39891 3632 4833 ALJAWWALSTC-AS, SA 11492 3452 4543 CABLEONE, US 8551 3363 3891 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo 6327 3331 3522 SHAW, CA 7155 3039 3969 VIASAT-SP-BACKBONE, US 22773 2659 3590 ASN-CXA-ALL-CCI-22773-RDC, US 30036 2167 2510 MEDIACOM-ENTERPRISE-BUSINESS, US 10620 2057 3503 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) ---------------------------------------------- 1:1671 2:1254 3:175 4:5 5:4393 6:128 7:6 8:1512 9:1 11:172 12:1548 13:387 14:2316 15:299 16:183 17:367 18:413 20:256 21:4 22:188 23:6233 24:2576 25:6 27:2488 29:19 31:2500 32:86 34:12 35:105 36:1944 37:4653 38:4438 39:819 40:151 41:3961 42:975 43:2311 44:308 45:16485 46:4112 47:357 49:1732 50:1824 51:573 52:1587 54:388 55:855 56:8 57:114 58:1684 59:1104 60:989 61:2475 62:2641 63:1922 64:5669 65:2318 66:4943 67:3006 68:1374 69:4140 70:1246 71:672 72:2977 74:2615 75:1466 76:607 77:2372 78:1845 79:3165 80:2104 81:1685 82:1479 83:1273 84:1511 85:2998 86:761 87:1982 88:1230 89:3620 90:612 91:7703 92:2045 93:2623 94:3595 95:4003 96:1327 97:336 98:1154 99:745 100:73 101:1302 102:2710 103:31217 104:4627 105:484 106:931 107:2526 108:1026 109:4407 110:2080 111:3092 112:2026 113:1497 114:1640 115:2006 116:1908 117:2559 118:2280 119:2003 120:1768 121:1043 122:2613 123:2165 124:1574 125:2467 128:1241 129:1047 130:1006 131:1981 132:841 133:422 134:1901 135:305 136:877 137:946 138:2559 139:1554 140:1237 141:1455 142:1426 143:1496 144:1159 145:347 146:1927 147:1575 148:2313 149:2077 150:874 151:1156 152:1930 153:488 154:4450 155:1433 156:1789 157:1309 158:1055 159:2300 160:2532 161:1512 162:3514 163:1509 164:1609 165:1735 166:1015 167:1743 168:3839 169:940 170:4590 171:880 172:3553 173:2939 174:1069 175:1156 176:3671 177:4564 178:3577 179:2148 180:2550 181:3431 182:3328 183:1930 184:2358 185:20119 186:4755 187:3960 188:4086 189:3554 190:9182 191:1436 192:10912 193:8861 194:7310 195:5135 196:3160 197:2385 198:5869 199:6082 200:7886 201:5851 202:10317 203:10197 204:4582 205:3526 206:4093 207:3386 208:4062 209:4831 210:4170 211:2401 212:4098 213:3565 214:1085 215:59 216:6643 217:2694 218:1266 219:406 220:1767 221:969 222:709 223:2152 End of report