This is an automated weekly mailing describing the state of the IPv4 Research & Education Routing Table received by NSRC's collector from Guam's network. Daily listings are sent to ren-bgp-stats-all@lists.nsrc.org. For historical data, please see https://bgp.nsrc.org. If you have any comments please contact Philip Smith . IPv4 R&E Routing Table Report 21:25 GMT Sat 26 Jul, 2025 IPv4 BGP Table (Global) as seen at Guam. Report Website: https://bgp.nsrc.org/REN Detailed Analysis: https://bgp.nsrc.org/REN/Guam/ Analysis Summary ---------------- BGP routing table entries examined: 1013489 Prefixes after maximum aggregation (per Origin AS): 384745 Deaggregation factor: 2.63 Unique aggregates announced (without unneeded subnets): 488272 Number of IPv4 prefixes with a valid ROA: 568156 Number of IPv4 prefixes with an invalid ROA: 20 Number of IPv4 prefixes with no ROA: 445313 Total ASes present in the Internet Routing Table: 77194 Prefixes per ASN: 13.13 Origin-only ASes present in the Internet Routing Table: 66065 Origin ASes announcing only one prefix: 26908 Transit ASes present in the Internet Routing Table: 11129 Transit-only ASes present in the Internet Routing Table: 574 Paths with bogon ASNs present in the IPv4 Routing Table: 29 Average AS path length visible in the Internet Routing Table: 5.3 Max AS path length visible: 56 Max AS path prepend of ASN (265020) 50 Prefixes from unregistered ASNs in the Routing Table: 1122 Number of instances of unregistered ASNs: 1155 Number of 32-bit ASNs allocated by the RIRs: 46946 Number of 32-bit ASNs visible in the Routing Table: 38699 Prefixes from 32-bit ASNs in the Routing Table: 209826 Number of bogon 32-bit ASNs visible in the Routing Table: 78 Special use prefixes present in the Routing Table: 1 Prefixes being announced from unallocated address space: 337 Number of addresses announced to Internet: 3112749377 Equivalent to 185 /8s, 136 /16s and 201 /24s Percentage of available address space announced: 84.1 Percentage of allocated address space announced: 84.1 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: 328908 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 274991 Total APNIC prefixes after maximum aggregation: 78895 APNIC Deaggregation factor: 3.49 Prefixes being announced from the APNIC address blocks: 266074 Unique aggregates announced from the APNIC address blocks: 105462 APNIC Region origin ASes present in the Internet Routing Table: 14826 APNIC Prefixes per ASN: 17.95 APNIC Region origin ASes announcing only one prefix: 4510 APNIC Region transit ASes present in the Internet Routing Table: 2003 Average APNIC Region AS path length visible: 5.3 Max APNIC Region AS path length visible: 35 Number of APNIC region 32-bit ASNs visible in the Routing Table: 10302 Number of APNIC addresses announced to Internet: 754833984 Equivalent to 44 /8s, 253 /16s and 218 /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, 131072-155961 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: 294779 Total ARIN prefixes after maximum aggregation: 132151 ARIN Deaggregation factor: 2.23 Prefixes being announced from the ARIN address blocks: 296184 Unique aggregates announced from the ARIN address blocks: 141438 ARIN Region origin ASes present in the Internet Routing Table: 19246 ARIN Prefixes per ASN: 15.39 ARIN Region origin ASes announcing only one prefix: 7032 ARIN Region transit ASes present in the Internet Routing Table: 2002 Average ARIN Region AS path length visible: 4.8 Max ARIN Region AS path length visible: 34 Number of ARIN region 32-bit ASNs visible in the Routing Table: 5260 Number of ARIN addresses announced to Internet: 1349342208 Equivalent to 80 /8s, 109 /16s and 84 /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, 393216-402332 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, 45/8, 47/8, 48/8, 50/8, 52/8, 54/8, 55/8, 56/8, 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: 280687 Total RIPE prefixes after maximum aggregation: 136388 RIPE Deaggregation factor: 2.06 Prefixes being announced from the RIPE address blocks: 279685 Unique aggregates announced from the RIPE address blocks: 178011 RIPE Region origin ASes present in the Internet Routing Table: 28979 RIPE Prefixes per ASN: 9.65 RIPE Region origin ASes announcing only one prefix: 12040 RIPE Region transit ASes present in the Internet Routing Table: 4015 Average RIPE Region AS path length visible: 5.5 Max RIPE Region AS path length visible: 34 Number of RIPE region 32-bit ASNs visible in the Routing Table: 12603 Number of RIPE addresses announced to Internet: 732241601 Equivalent to 43 /8s, 165 /16s and 30 /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, 53/8, 57/8, 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: 126493 Total LACNIC prefixes after maximum aggregation: 29773 LACNIC Deaggregation factor: 4.25 Prefixes being announced from the LACNIC address blocks: 122736 Unique aggregates announced from the LACNIC address blocks: 49089 LACNIC Region origin ASes present in the Internet Routing Table: 11273 LACNIC Prefixes per ASN: 10.89 LACNIC Region origin ASes announcing only one prefix: 2650 LACNIC Region transit ASes present in the Internet Routing Table: 2522 Average LACNIC Region AS path length visible: 5.9 Max LACNIC Region AS path length visible: 56 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 9236 Number of LACNIC addresses announced to Internet: 171149376 Equivalent to 10 /8s, 51 /16s and 136 /24s LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247, 61440-61951, 64099-64197, 262144-274844 + 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: 35417 Total AfriNIC prefixes after maximum aggregation: 6793 AfriNIC Deaggregation factor: 5.21 Prefixes being announced from the AfriNIC address blocks: 48473 Unique aggregates announced from the AfriNIC address blocks: 13997 AfriNIC Region origin ASes present in the Internet Routing Table: 1930 AfriNIC Prefixes per ASN: 25.12 AfriNIC Region origin ASes announcing only one prefix: 676 AfriNIC Region transit ASes present in the Internet Routing Table: 385 Average AfriNIC Region AS path length visible: 6.2 Max AfriNIC Region AS path length visible: 38 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1298 Number of AfriNIC addresses announced to Internet: 104976384 Equivalent to 6 /8s, 65 /16s and 208 /24s AfriNIC AS Blocks 36864-37887, 327680-329727 & ERX transfers AfriNIC Address Blocks 41/8, 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 12205 8921 172 CHINAMOBILE-CN China Mobile Communication 7545 6126 839 607 TPG-INTERNET-AP TPG Telecom Limited, AU 4538 4888 4192 75 ERX-CERNET-BKB China Education and Resear 18403 4502 347 26 FPT-AS-AP FPT Telecom Company, VN 9498 4464 535 311 BBIL-AP BHARTI Airtel Ltd., IN 45899 4379 1874 55 VNPT-AS-VN VNPT Corp, VN 7552 3946 1332 28 VIETEL-AS-AP Viettel Group, VN 7713 3698 1044 66 TELKOMNET-AS-AP PT Telekomunikasi Indones 56046 2953 832 220 CMNET-JIANGSU-AP China Mobile communicati 24560 2911 864 509 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., Complete listing at https://bgp.nsrc.org/REN/Guam/data-ASnet-APNIC ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 16509 13698 40976 5281 AMAZON-02, US 174 5271 8772 864 COGENT-174, US 11492 4819 319 605 CABLEONE, US 7155 3869 287 89 VIASAT-SP-BACKBONE, US 6327 3637 1320 82 SHAW, CA 22773 3340 3013 164 ASN-CXA-ALL-CCI-22773-RDC, US 749 3223 54766 2474 DNIC-AS-00749, US 396982 3196 3855 432 GOOGLE-CLOUD-PLATFORM, US 16625 2947 1245 2187 AKAMAI-AS, US 4155 2875 218 1726 USDA-1, US Complete listing at https://bgp.nsrc.org/REN/Guam/data-ASnet-ARIN RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 12479 7595 1712 148 UNI2-AS, ES 39891 4798 293 63 ALJAWWALSTC-AS, SA 20940 3946 3396 140 AKAMAI-ASN1, NL 9009 3819 363 2135 M247, RO 12389 3118 2315 870 ROSTELECOM-AS PJSC Rostelecom. Technical 34984 2404 361 584 TELLCOM-AS, TR 5384 2393 585 29 EMIRATES-INTERNET Emirates Internet, AE 212238 2322 164 1690 CDNEXT, GB 13188 1606 100 34 TRIOLAN, UA 8452 1585 1852 14 TE-AS TE-AS, EG Complete listing at https://bgp.nsrc.org/REN/Guam/data-ASnet-RIPE LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 8151 12320 3260 575 UNINET, MX 10620 3484 474 1024 Telmex Colombia S.A., CO 13999 2525 511 349 Mega Cable, S.A. de C.V., MX 11830 1987 369 64 Instituto Costarricense de Electricidad y 28573 1371 2435 269 Claro NXT Telecomunicacoes Ltda, BR 3816 1351 788 208 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1188 371 22 Telefonica del Peru S.A.A., PE 11664 1183 278 33 Techtel LMDS Comunicaciones Interactivas 22884 1070 68 371 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 6503 1020 373 162 Axtel, S.A.B. de C.V., MX Complete listing at https://bgp.nsrc.org/REN/Guam/data-ASnet-LACNIC AfriNIC Region per AS prefix count summary ------------------------------------------ ASN No of nets /20 equiv MaxAgg Description 24835 1732 660 28 RAYA-AS, EG 29571 1607 102 33 ORANGE-COTE-IVOIRE, CI 36992 1312 1489 355 ETISALAT-MISR, EG 36903 1249 554 96 MT-MPLS, MA 24863 1228 389 20 LINKdotNET-AS, EG 37069 1086 1112 11 MOBINIL, EG 36935 832 520 43 Vodafone-, EG 36914 577 82 3 KENET-AS, KE 20011 568 154 212 INTERNET-SOLUTIONS, ZA 15399 542 57 60 WANANCHI-, KE Complete listing at https://bgp.nsrc.org/REN/Guam/data-ASnet-AFRINIC Global Per AS prefix count summary ---------------------------------- ASN No of nets /20 equiv MaxAgg Description 16509 13698 40976 5281 AMAZON-02, US 8151 12320 3260 575 UNINET, MX 9808 12205 8921 172 CHINAMOBILE-CN China Mobile Communication 12479 7595 1712 148 UNI2-AS, ES 7545 6126 839 607 TPG-INTERNET-AP TPG Telecom Limited, AU 174 5271 8772 864 COGENT-174, US 4538 4888 4192 75 ERX-CERNET-BKB China Education and Resear 11492 4819 319 605 CABLEONE, US 39891 4798 293 63 ALJAWWALSTC-AS, SA 18403 4502 347 26 FPT-AS-AP FPT Telecom Company, VN Complete listing at https://bgp.nsrc.org/REN/Guam/data-ASnet Global Per AS Maximum Aggregation summary ----------------------------------------- ASN No of nets Net Savings Description 9808 12205 12033 CHINAMOBILE-CN China Mobile Communications Grou 8151 12320 11745 UNINET, MX 12479 7595 7447 UNI2-AS, ES 7545 6126 5519 TPG-INTERNET-AP TPG Telecom Limited, AU 4538 4888 4813 ERX-CERNET-BKB China Education and Research Net 39891 4798 4735 ALJAWWALSTC-AS, SA 18403 4502 4476 FPT-AS-AP FPT Telecom Company, VN 174 5271 4407 COGENT-174, US 45899 4379 4324 VNPT-AS-VN VNPT Corp, VN 11492 4819 4214 CABLEONE, US Complete listing at https://bgp.nsrc.org/REN/Guam/data-CIDRnet List of Unregistered Origin ASNs (Global) ----------------------------------------- Bad AS Designation Net Originated Transit AS Transit AS Name 22542 UNALLOCATED 8.7.205.0/24 3356 LEVEL3, US 33123 UNALLOCATED 8.10.69.0/24 174 COGENT-174, US 46639 UNALLOCATED 8.17.66.0/24 701 UUNET, US 53775 UNALLOCATED 8.20.88.0/24 7029 WINDSTREAM, US 393266 UNALLOCATED 8.23.52.0/24 46887 CROWNCASTLE-AS46887, US 398074 UNALLOCATED 8.28.115.0/24 32787 PROLEXIC-TECHNOLOGIES-D 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 46639 UNALLOCATED 8.38.73.0/24 3356 LEVEL3, US Complete listing at https://bgp.nsrc.org/REN/Guam/data-badAS Prefixes from the Special Purpose Address Registry (Global) ----------------------------------------------------------- Prefix Origin AS Description 192.88.99.0/24 6939 HURRICANE, US Complete listing at https://bgp.nsrc.org/REN/Guam/data-spar 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 23.142.24.0/24 Origin: 62164 HEYMMAN-2, CA 23.142.24.0/24 Transit: 64236 UNREAL-SERVERS, US 23.147.224.0/24 Origin: 27392 639-DATACENTERS, US 23.147.224.0/24 Transit: 3356 LEVEL3, US 23.147.225.0/24 Origin: 27392 639-DATACENTERS, US 23.147.225.0/24 Transit: 3356 LEVEL3, US Complete listing at https://bgp.nsrc.org/REN/Guam/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 /10:41 /11:92 /12:299 /13:582 /14:1215 /15:2169 /16:13907 /17:8474 /18:14304 /19:25396 /20:45901 /21:53169 /22:113917 /23:106171 /24:627070 /25:134 /26:111 /27:101 /28:21 /29:71 /30:8 /31:0 /32:306 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 12479 6543 7595 UNI2-AS, ES 8151 6538 12320 UNINET, MX 11492 3611 4819 CABLEONE, US 39891 3489 4798 ALJAWWALSTC-AS, SA 6327 3433 3637 SHAW, CA 7155 2827 3869 VIASAT-SP-BACKBONE, US 22773 2493 3340 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2350 13698 AMAZON-02, US 30036 2286 2627 MEDIACOM-ENTERPRISE-BUSINESS, US 10620 2195 3484 Telmex Colombia S.A., CO Complete listing at https://bgp.nsrc.org/REN/Guam/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:2479 2:1590 3:858 4:12 5:4867 6:163 7:6 8:1588 9:1 11:172 12:1339 13:465 14:2641 15:367 16:286 17:379 18:898 20:579 21:4 22:188 23:7757 24:2724 25:2 27:2863 29:19 31:3447 32:39 33:1 34:84 35:261 36:3863 37:4606 38:10609 39:949 40:248 41:4340 42:2013 43:2815 44:380 45:18910 46:5176 47:354 49:1927 50:2016 51:591 52:1554 54:325 55:1110 56:11 57:279 58:2294 59:1418 60:1199 61:3072 62:3011 63:1799 64:5562 65:2162 66:4764 67:3111 68:1073 69:3978 70:1041 71:629 72:2857 74:2820 75:1511 76:606 77:2778 78:1901 79:1705 80:2242 81:2071 82:3201 83:1488 84:1904 85:3484 86:1188 87:2400 88:1316 89:4453 90:778 91:8470 92:2770 93:2969 94:4207 95:4425 96:1494 97:309 98:954 99:692 100:71 101:1464 102:4068 103:32759 104:5242 105:1066 106:978 107:2656 108:1272 109:4264 110:2282 111:3398 112:2310 113:1903 114:1988 115:2314 116:2155 117:2669 118:3019 119:2046 120:2238 121:1411 122:2934 123:2524 124:1796 125:2927 126:91 128:1634 129:984 130:1323 131:2075 132:772 133:450 134:1594 135:352 136:1467 137:1273 138:2886 139:1661 140:1653 141:1521 142:1914 143:1952 144:1182 145:565 146:2200 147:2101 148:2726 149:2989 150:1304 151:2233 152:2077 153:590 154:7833 155:1850 156:3110 157:1950 158:1345 159:2531 160:3608 161:1905 162:3890 163:2261 164:1879 165:2391 166:1530 167:2019 168:4041 169:788 170:5182 171:1013 172:4227 173:3402 174:917 175:1355 176:3759 177:4947 178:3965 179:2370 180:2666 181:4158 182:3559 183:2295 184:2102 185:21705 186:5316 187:4741 188:4288 189:4422 190:9616 191:1542 192:11378 193:9504 194:7928 195:5732 196:3303 197:3198 198:6125 199:8621 200:8352 201:6440 202:10993 203:10942 204:4648 205:3603 206:4539 207:3557 208:4313 209:5168 210:4993 211:2821 212:4611 213:3836 214:1021 215:48 216:6788 217:3378 218:1442 219:602 220:2153 221:1206 222:996 223:2769 End of report