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 08 Nov, 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: 1033250 Prefixes after maximum aggregation (per Origin AS): 393116 Deaggregation factor: 2.63 Unique aggregates announced (without unneeded subnets): 501346 Number of IPv4 prefixes with a valid ROA: 595943 Number of IPv4 prefixes with an invalid ROA: 19 Number of IPv4 prefixes with no ROA: 437288 Total ASes present in the Internet Routing Table: 77615 Prefixes per ASN: 13.31 Origin-only ASes present in the Internet Routing Table: 66410 Origin ASes announcing only one prefix: 27051 Transit ASes present in the Internet Routing Table: 11205 Transit-only ASes present in the Internet Routing Table: 572 Paths with bogon ASNs present in the IPv4 Routing Table: 50 Average AS path length visible in the Internet Routing Table: 5.4 Max AS path length visible: 52 Max AS path prepend of ASN ( 37447) 39 Prefixes from unregistered ASNs in the Routing Table: 934 Number of instances of unregistered ASNs: 963 Number of 32-bit ASNs allocated by the RIRs: 47936 Number of 32-bit ASNs visible in the Routing Table: 39293 Prefixes from 32-bit ASNs in the Routing Table: 217750 Number of bogon 32-bit ASNs visible in the Routing Table: 70 Special use prefixes present in the Routing Table: 1 Prefixes being announced from unallocated address space: 295 Number of addresses announced to Internet: 3107939233 Equivalent to 185 /8s, 63 /16s and 99 /24s Percentage of available address space announced: 83.9 Percentage of allocated address space announced: 83.9 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: 337196 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 283177 Total APNIC prefixes after maximum aggregation: 81481 APNIC Deaggregation factor: 3.48 Prefixes being announced from the APNIC address blocks: 273067 Unique aggregates announced from the APNIC address blocks: 106642 APNIC Region origin ASes present in the Internet Routing Table: 14945 APNIC Prefixes per ASN: 18.27 APNIC Region origin ASes announcing only one prefix: 4549 APNIC Region transit ASes present in the Internet Routing Table: 2013 Average APNIC Region AS path length visible: 5.5 Max APNIC Region AS path length visible: 36 Number of APNIC region 32-bit ASNs visible in the Routing Table: 10442 Number of APNIC addresses announced to Internet: 753869632 Equivalent to 44 /8s, 239 /16s and 35 /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: 300920 Total ARIN prefixes after maximum aggregation: 133824 ARIN Deaggregation factor: 2.25 Prefixes being announced from the ARIN address blocks: 300752 Unique aggregates announced from the ARIN address blocks: 145296 ARIN Region origin ASes present in the Internet Routing Table: 19379 ARIN Prefixes per ASN: 15.52 ARIN Region origin ASes announcing only one prefix: 7098 ARIN Region transit ASes present in the Internet Routing Table: 1998 Average ARIN Region AS path length visible: 4.8 Max ARIN Region AS path length visible: 35 Number of ARIN region 32-bit ASNs visible in the Routing Table: 5406 Number of ARIN addresses announced to Internet: 1344967168 Equivalent to 80 /8s, 42 /16s and 146 /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: 285174 Total RIPE prefixes after maximum aggregation: 139736 RIPE Deaggregation factor: 2.04 Prefixes being announced from the RIPE address blocks: 285865 Unique aggregates announced from the RIPE address blocks: 182471 RIPE Region origin ASes present in the Internet Routing Table: 29114 RIPE Prefixes per ASN: 9.82 RIPE Region origin ASes announcing only one prefix: 12068 RIPE Region transit ASes present in the Internet Routing Table: 4055 Average RIPE Region AS path length visible: 5.6 Max RIPE Region AS path length visible: 32 Number of RIPE region 32-bit ASNs visible in the Routing Table: 12808 Number of RIPE addresses announced to Internet: 735382785 Equivalent to 43 /8s, 213 /16s and 13 /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: 126957 Total LACNIC prefixes after maximum aggregation: 30493 LACNIC Deaggregation factor: 4.16 Prefixes being announced from the LACNIC address blocks: 122938 Unique aggregates announced from the LACNIC address blocks: 49549 LACNIC Region origin ASes present in the Internet Routing Table: 11317 LACNIC Prefixes per ASN: 10.86 LACNIC Region origin ASes announcing only one prefix: 2646 LACNIC Region transit ASes present in the Internet Routing Table: 2552 Average LACNIC Region AS path length visible: 5.9 Max LACNIC Region AS path length visible: 39 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 9298 Number of LACNIC addresses announced to Internet: 170610528 Equivalent to 10 /8s, 43 /16s and 79 /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: 36088 Total AfriNIC prefixes after maximum aggregation: 6935 AfriNIC Deaggregation factor: 5.20 Prefixes being announced from the AfriNIC address blocks: 50333 Unique aggregates announced from the AfriNIC address blocks: 17117 AfriNIC Region origin ASes present in the Internet Routing Table: 1977 AfriNIC Prefixes per ASN: 25.46 AfriNIC Region origin ASes announcing only one prefix: 690 AfriNIC Region transit ASes present in the Internet Routing Table: 387 Average AfriNIC Region AS path length visible: 6.0 Max AfriNIC Region AS path length visible: 42 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1339 Number of AfriNIC addresses announced to Internet: 102923520 Equivalent to 6 /8s, 34 /16s and 125 /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 13535 8889 172 CHINAMOBILE-CN China Mobile Communication 7545 6087 833 584 TPG-INTERNET-AP TPG Telecom Limited, AU 4538 4881 4192 76 ERX-CERNET-BKB China Education and Resear 9498 4519 538 314 BBIL-AP BHARTI Airtel Ltd., IN 18403 4459 347 24 FPT-AS-AP FPT Telecom Company, VN 45899 4400 1874 54 VNPT-AS-VN VNPT Corp, VN 7552 4007 1332 29 VIETEL-AS-AP Viettel Group, VN 7713 3719 1044 66 TELKOMNET-AS-AP PT Telekomunikasi Indones 56046 3386 848 233 CMNET-JIANGSU-AP China Mobile communicati 24560 2938 864 505 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 14311 37221 5384 AMAZON-02, US 11492 4781 317 802 CABLEONE, US 22773 4625 3091 399 ASN-CXA-ALL-CCI-22773-RDC, US 174 4341 8762 811 COGENT-174, US 7155 3875 287 89 VIASAT-SP-BACKBONE, US 6327 3687 1320 82 SHAW, CA 396982 3289 4827 473 GOOGLE-CLOUD-PLATFORM, US 749 3216 54766 2467 DNIC-AS-00749, US 16625 2910 1245 2163 AKAMAI-AS, US 36352 2845 231 913 AS-COLOCROSSING, 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 7283 1711 149 UNI2-AS, ES 39891 4833 298 66 ALJAWWALSTC-AS, SA 9009 4009 377 2277 M247, RO 20940 3924 3395 140 AKAMAI-ASN1, NL 12389 3174 2317 869 ROSTELECOM-AS PJSC Rostelecom. Technical 212238 2540 179 1830 CDNEXT, GB 34984 2417 363 576 TELLCOM-AS, TR 5384 2391 585 28 EMIRATES-INTERNET Emirates Internet, AE 8452 1667 1852 14 TE-AS TE-AS, EG 13188 1607 100 27 TRIOLAN, UA 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 12507 3297 576 UNINET, MX 10620 3455 463 1098 Telmex Colombia S.A., CO 13999 2504 511 350 Mega Cable, S.A. de C.V., MX 11830 1990 369 64 Instituto Costarricense de Electricidad y 28573 1375 2433 261 Claro NXT Telecomunicacoes Ltda, BR 3816 1353 789 206 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 11664 1306 278 31 Techtel LMDS Comunicaciones Interactivas 6147 1271 371 23 Telefonica del Peru S.A.A., PE 22884 1059 67 365 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 26615 1026 2486 56 TIM SA, BR 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 1788 594 28 RAYA-AS, EG 36992 1679 1509 397 ETISALAT-MISR, EG 24863 1265 389 20 LINKdotNET-AS, EG 36903 1250 554 97 MT-MPLS, MA 29571 1165 100 70 ORANGE-COTE-IVOIRE, CI 37069 1085 1096 13 MOBINIL, EG 36935 998 521 44 Vodafone-, EG 20011 580 154 212 NTT-DATA-Inc, ZA 36914 545 82 3 KENET-AS, KE 15399 544 57 55 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 14311 37221 5384 AMAZON-02, US 9808 13535 8889 172 CHINAMOBILE-CN China Mobile Communication 8151 12507 3297 576 UNINET, MX 12479 7283 1711 149 UNI2-AS, ES 7545 6087 833 584 TPG-INTERNET-AP TPG Telecom Limited, AU 4538 4881 4192 76 ERX-CERNET-BKB China Education and Resear 39891 4833 298 66 ALJAWWALSTC-AS, SA 11492 4781 317 802 CABLEONE, US 22773 4625 3091 399 ASN-CXA-ALL-CCI-22773-RDC, US 9498 4519 538 314 BBIL-AP BHARTI Airtel Ltd., IN 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 13535 13363 CHINAMOBILE-CN China Mobile Communications Grou 8151 12507 11931 UNINET, MX 12479 7283 7134 UNI2-AS, ES 7545 6087 5503 TPG-INTERNET-AP TPG Telecom Limited, AU 4538 4881 4805 ERX-CERNET-BKB China Education and Research Net 39891 4833 4767 ALJAWWALSTC-AS, SA 18403 4459 4435 FPT-AS-AP FPT Telecom Company, VN 45899 4400 4346 VNPT-AS-VN VNPT Corp, VN 22773 4625 4226 ASN-CXA-ALL-CCI-22773-RDC, US 9498 4519 4205 BBIL-AP BHARTI Airtel Ltd., IN 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 53775 UNALLOCATED 8.20.88.0/24 3737 AS-PTD, US 393266 UNALLOCATED 8.23.52.0/24 46887 CROWNCASTLE-AS46887, 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 395195 UNALLOCATED 8.38.115.0/24 3356 LEVEL3, US 1782 UNALLOCATED 8.42.19.0/24 3356 LEVEL3, US 54739 UNALLOCATED 8.44.198.0/23 13335 CLOUDFLARENET, US 13342 UNALLOCATED 12.17.5.0/24 174 COGENT-174, US 26345 UNALLOCATED 12.21.93.0/24 40264 TWC-40264-WI-MN-UPPERMI 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 23.135.216.0/24 Origin: 400565 RESERVED, ZZ 23.135.216.0/24 Transit: 3356 LEVEL3, US 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 23.147.240.0/24 Origin: 32302 RESERVED, ZZ 23.147.240.0/24 Transit: 32787 PROLEXIC-TECHNOLOGIES-DDOS-MITIGATION-NE 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 /8:18 /9:14 /10:41 /11:94 /12:299 /13:582 /14:1204 /15:2115 /16:13815 /17:8447 /18:14181 /19:25530 /20:46371 /21:53478 /22:114618 /23:108304 /24:643377 /25:149 /26:112 /27:115 /28:21 /29:66 /30:12 /31:3 /32:284 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 8151 6716 12507 UNINET, MX 12479 6227 7283 UNI2-AS, ES 11492 3594 4781 CABLEONE, US 39891 3521 4833 ALJAWWALSTC-AS, SA 6327 3475 3687 SHAW, CA 22773 2975 4625 ASN-CXA-ALL-CCI-22773-RDC, US 7155 2833 3875 VIASAT-SP-BACKBONE, US 16509 2450 14311 AMAZON-02, US 30036 2312 2655 MEDIACOM-ENTERPRISE-BUSINESS, US 10620 2210 3455 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) ---------------------------------------------- 1:2503 2:1616 3:970 4:12 5:5040 6:189 7:6 8:1541 9:6 11:172 12:1230 13:561 14:2713 15:405 16:303 17:389 18:912 20:599 21:4 22:188 23:8079 24:2614 25:2 27:2862 29:19 31:3450 32:35 33:1 34:85 35:279 36:4523 37:4623 38:10496 39:1183 40:467 41:4474 42:2003 43:2925 44:406 45:19435 46:5296 47:384 49:2180 50:2057 51:596 52:1626 54:357 55:1096 56:11 57:295 58:2401 59:1402 60:1218 61:3179 62:3126 63:1766 64:5913 65:2130 66:5922 67:3248 68:1491 69:4214 70:1030 71:634 72:2968 74:2907 75:1520 76:600 77:2775 78:1910 79:1807 80:2316 81:2142 82:3600 83:1511 84:2014 85:3582 86:1205 87:2406 88:1335 89:4546 90:833 91:8452 92:2894 93:3000 94:4274 95:4558 96:1503 97:312 98:951 99:762 100:68 101:1509 102:4434 103:32693 104:5471 105:1029 106:931 107:2798 108:1203 109:4263 110:2297 111:3933 112:2791 113:1953 114:2114 115:2355 116:2194 117:3137 118:3110 119:2142 120:2402 121:1585 122:2963 123:2418 124:1751 125:2960 126:125 128:1620 129:980 130:1506 131:2263 132:780 133:461 134:1634 135:366 136:1494 137:1284 138:2894 139:1677 140:1714 141:1575 142:2234 143:2138 144:1341 145:633 146:2200 147:2124 148:2780 149:2904 150:1297 151:2666 152:2271 153:657 154:8361 155:2228 156:3266 157:2094 158:1404 159:2638 160:3775 161:2007 162:4007 163:2341 164:1957 165:2555 166:1323 167:2129 168:3875 169:787 170:5515 171:1075 172:4508 173:3434 174:905 175:1385 176:3780 177:4849 178:4321 179:2342 180:2831 181:4351 182:3834 183:2601 184:2099 185:21784 186:5454 187:4792 188:4409 189:4504 190:9778 191:1574 192:11491 193:9530 194:7966 195:5767 196:3311 197:3237 198:6095 199:6086 200:8228 201:6431 202:11063 203:10893 204:4607 205:3664 206:4460 207:3755 208:4283 209:5346 210:5104 211:2879 212:4948 213:3991 214:1037 215:54 216:7174 217:3486 218:1640 219:622 220:2209 221:1271 222:1016 223:3164 End of report