[REN-BGP-stats-all] IPv4 R&E Routing Table Report - KREONet2 (R&E) view
REN Routing Table Report
cscora at bgp.nsrc.org
Wed Apr 30 20:17:03 UTC 2025
IPv4 R&E Routing Table Report 20:15 GMT Wed 30 Apr, 2025
IPv4 BGP Table (R&E) as seen at KREONet2.
Report Website: https://bgp.nsrc.org/REN
Detailed Analysis: https://bgp.nsrc.org/REN/KREONet2/
Analysis Summary
----------------
BGP routing table entries examined: 262794
Prefixes after maximum aggregation (per Origin AS): 115021
Deaggregation factor: 2.28
Unique aggregates announced (without unneeded subnets): 135936
Number of IPv4 prefixes with a valid ROA: 117615
Number of IPv4 prefixes with an invalid ROA: 34
Number of IPv4 prefixes with no ROA: 145145
Total ASes present in the Internet Routing Table: 19887
Prefixes per ASN: 13.21
Origin-only ASes present in the Internet Routing Table: 17149
Origin ASes announcing only one prefix: 7779
Transit ASes present in the Internet Routing Table: 2738
Transit-only ASes present in the Internet Routing Table: 728
Paths with bogon ASNs present in the IPv4 Routing Table: 4
Average AS path length visible in the Internet Routing Table: 5.8
Max AS path length visible: 38
Max AS path prepend of ASN ( 37447) 34
Prefixes from unregistered ASNs in the Routing Table: 309
Number of instances of unregistered ASNs: 310
Number of 32-bit ASNs allocated by the RIRs: 46303
Number of 32-bit ASNs visible in the Routing Table: 7608
Prefixes from 32-bit ASNs in the Routing Table: 28235
Number of bogon 32-bit ASNs visible in the Routing Table: 4
Special use prefixes present in the Routing Table: 1
Prefixes being announced from unallocated address space: 140
Number of addresses announced to Internet: 1552834525
Equivalent to 92 /8s, 142 /16s and 95 /24s
Percentage of available address space announced: 41.9
Percentage of allocated address space announced: 41.9
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: 82691
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 32010
Total APNIC prefixes after maximum aggregation: 7463
APNIC Deaggregation factor: 4.29
Prefixes being announced from the APNIC address blocks: 30448
Unique aggregates announced from the APNIC address blocks: 7881
APNIC Region origin ASes present in the Internet Routing Table: 1202
APNIC Prefixes per ASN: 25.33
APNIC Region origin ASes announcing only one prefix: 471
APNIC Region transit ASes present in the Internet Routing Table: 204
Average APNIC Region AS path length visible: 7.3
Max APNIC Region AS path length visible: 19
Number of APNIC region 32-bit ASNs visible in the Routing Table: 545
Number of APNIC addresses announced to Internet: 167533164
Equivalent to 9 /8s, 252 /16s and 90 /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: 125736
Total ARIN prefixes after maximum aggregation: 64825
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 122898
Unique aggregates announced from the ARIN address blocks: 66063
ARIN Region origin ASes present in the Internet Routing Table: 9318
ARIN Prefixes per ASN: 13.19
ARIN Region origin ASes announcing only one prefix: 3893
ARIN Region transit ASes present in the Internet Routing Table: 869
Average ARIN Region AS path length visible: 5.4
Max ARIN Region AS path length visible: 26
Number of ARIN region 32-bit ASNs visible in the Routing Table: 2172
Number of ARIN addresses announced to Internet: 964911585
Equivalent to 57 /8s, 131 /16s and 97 /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: 49296
Total RIPE prefixes after maximum aggregation: 26448
RIPE Deaggregation factor: 1.86
Prefixes being announced from the RIPE address blocks: 50789
Unique aggregates announced from the RIPE address blocks: 36708
RIPE Region origin ASes present in the Internet Routing Table: 4572
RIPE Prefixes per ASN: 11.11
RIPE Region origin ASes announcing only one prefix: 1934
RIPE Region transit ASes present in the Internet Routing Table: 692
Average RIPE Region AS path length visible: 5.6
Max RIPE Region AS path length visible: 27
Number of RIPE region 32-bit ASNs visible in the Routing Table: 1881
Number of RIPE addresses announced to Internet: 281696592
Equivalent to 16 /8s, 202 /16s and 89 /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: 45183
Total LACNIC prefixes after maximum aggregation: 13751
LACNIC Deaggregation factor: 3.29
Prefixes being announced from the LACNIC address blocks: 44307
Unique aggregates announced from the LACNIC address blocks: 20549
LACNIC Region origin ASes present in the Internet Routing Table: 3685
LACNIC Prefixes per ASN: 12.02
LACNIC Region origin ASes announcing only one prefix: 1377
LACNIC Region transit ASes present in the Internet Routing Table: 762
Average LACNIC Region AS path length visible: 5.9
Max LACNIC Region AS path length visible: 30
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 2868
Number of LACNIC addresses announced to Internet: 97011264
Equivalent to 5 /8s, 200 /16s and 70 /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: 10260
Total AfriNIC prefixes after maximum aggregation: 2327
AfriNIC Deaggregation factor: 4.41
Prefixes being announced from the AfriNIC address blocks: 14212
Unique aggregates announced from the AfriNIC address blocks: 4613
AfriNIC Region origin ASes present in the Internet Routing Table: 261
AfriNIC Prefixes per ASN: 54.45
AfriNIC Region origin ASes announcing only one prefix: 104
AfriNIC Region transit ASes present in the Internet Routing Table: 71
Average AfriNIC Region AS path length visible: 6.5
Max AfriNIC Region AS path length visible: 38
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 142
Number of AfriNIC addresses announced to Internet: 41622272
Equivalent to 2 /8s, 123 /16s and 27 /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 10268 8754 92 CHINAMOBILE-CN China Mobile Communication
56046 1622 811 186 CMNET-JIANGSU-AP China Mobile communicati
56041 1569 714 78 CMNET-ZHEJIANG-AP China Mobile communicat
56047 1486 192 53 CMNET-HUNAN-AP China Mobile communication
17561 872 55 354 LCS-AS-AP LARUS Limited, HK
24547 852 177 50 CMNET-V4HEBEI-AS-AP Hebei Mobile Communic
24444 771 500 72 CMNET-V4SHANDONG-AS-AP Shandong Mobile Co
2907 639 2170 465 SINET-AS Research Organization of Informa
45102 559 855 141 ALIBABA-CN-NET Alibaba US Technology Co.,
24445 522 497 67 CMNET-V4HENAN-AS-AP Henan Mobile Communic
Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-ASnet-APNIC
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
16509 13234 39699 4173 AMAZON-02, US
22773 3382 3017 174 ASN-CXA-ALL-CCI-22773-RDC, US
749 3253 54863 2504 DNIC-AS-00749, US
4155 2684 204 1642 USDA-1, US
36352 2491 205 1110 AS-COLOCROSSING, US
367 2435 2888 1181 DNIC-ASBLK-00306-00371, US
7018 2103 22891 1551 ATT-INTERNET4, US
11776 1895 258 216 ATLANTICBB-JOHNSTOWN, US
6167 1846 3687 467 CELLCO-PART, US
209 1664 4890 275 CENTURYLINK-US-LEGACY-QWEST, US
Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-ASnet-ARIN
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
39891 2276 151 50 ALJAWWALSTC-AS, SA
20940 1243 97 1015 AKAMAI-ASN1, NL
3257 990 2075 745 GTT-BACKBONE GTT, US
3215 889 4810 291 France Telecom - Orange, FR
25019 854 1303 130 SAUDINETSTC-AS, SA
34984 692 77 414 TELLCOM-AS, TR
8452 658 1842 17 TE-AS TE-AS, EG
8376 576 53 22 Jordan Data Communications, JO
51167 568 113 251 CONTABO, DE
212238 566 41 498 CDNEXT, GB
Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-ASnet-RIPE
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 7287 2024 1011 UNINET, MX
11830 1995 369 64 Instituto Costarricense de Electricidad y
10620 1929 286 1300 Telmex Colombia S.A., CO
3816 1332 784 205 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC,
6147 1191 371 22 Telefonica del Peru S.A.A., PE
26615 1013 2503 52 TIM SA, BR
18881 882 1127 31 TELEFONICA BRASIL S.A, BR
27651 648 94 35 ENTEL CHILE S.A., CL
28006 645 77 297 CORPORACION NACIONAL DE TELECOMUNICACIONE
26599 550 2884 69 TELEFONICA BRASIL S.A, BR
Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-ASnet-LACNIC
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
24863 1491 389 16 LINKdotNET-AS, EG
20011 980 185 285 INTERNET-SOLUTIONS, ZA
29571 971 100 75 ORANGE-COTE-IVOIRE, CI
24835 882 552 38 RAYA-AS, EG
36935 699 135 175 Vodafone-, EG
36992 603 1228 124 ETISALAT-MISR, EG
36914 548 82 3 KENET-AS, KE
37069 461 1046 15 MOBINIL, EG
36903 410 192 301 MT-MPLS, MA
2018 373 318 69 TENET-1, ZA
Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-ASnet-AFRINIC
Global Per AS prefix count summary
----------------------------------
ASN No of nets /20 equiv MaxAgg Description
16509 13234 39699 4173 AMAZON-02, US
9808 10268 8754 92 CHINAMOBILE-CN China Mobile Communication
8151 7287 2024 1011 UNINET, MX
22773 3382 3017 174 ASN-CXA-ALL-CCI-22773-RDC, US
749 3253 54863 2504 DNIC-AS-00749, US
4155 2684 204 1642 USDA-1, US
36352 2491 205 1110 AS-COLOCROSSING, US
367 2435 2888 1181 DNIC-ASBLK-00306-00371, US
39891 2276 151 50 ALJAWWALSTC-AS, SA
7018 2103 22891 1551 ATT-INTERNET4, US
Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-ASnet
Global Per AS Maximum Aggregation summary
-----------------------------------------
ASN No of nets Net Savings Description
9808 10268 10176 CHINAMOBILE-CN China Mobile Communications Grou
8151 7287 6276 UNINET, MX
22773 3382 3208 ASN-CXA-ALL-CCI-22773-RDC, US
39891 2276 2226 ALJAWWALSTC-AS, SA
11830 1995 1931 Instituto Costarricense de Electricidad y Telec
11776 1895 1679 ATLANTICBB-JOHNSTOWN, US
56041 1569 1491 CMNET-ZHEJIANG-AP China Mobile communications c
24863 1491 1475 LINKdotNET-AS, EG
56046 1622 1436 CMNET-JIANGSU-AP China Mobile communications co
56047 1486 1433 CMNET-HUNAN-AP China Mobile communications corp
Complete listing at https://bgp.nsrc.org/REN/KREONet2/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
46639 UNALLOCATED 8.17.66.0/24 701 UUNET, US
46639 UNALLOCATED 8.38.73.0/24 3356 LEVEL3, US
1782 UNALLOCATED 8.42.19.0/24 3356 LEVEL3, US
22542 UNALLOCATED 8.42.195.0/24 3356 LEVEL3, US
395438 UNALLOCATED 8.42.206.0/24 3356 LEVEL3, US
46639 UNALLOCATED 8.42.219.0/24 3356 LEVEL3, US
399953 UNALLOCATED 12.9.122.0/24 7018 ATT-INTERNET4, US
13342 UNALLOCATED 12.17.5.0/24 7018 ATT-INTERNET4, US
396831 UNALLOCATED 12.23.198.0/24 7018 ATT-INTERNET4, US
Complete listing at https://bgp.nsrc.org/REN/KREONet2/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/KREONet2/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
23.152.48.0/24 Origin: 46167 RESERVED, ZZ
23.152.48.0/24 Transit: 7018 ATT-INTERNET4, US
23.158.216.0/24 Origin: 204535 RESERVED, ZZ
23.158.216.0/24 Transit: 22427 GNET-AS, US
23.166.120.0/24 Origin: 59993 UILLLC-20230328, US
23.166.120.0/24 Transit: 30456 COSMIC-GLOBAL, US
Complete listing at https://bgp.nsrc.org/REN/KREONet2/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 /8:13 /9:10 /10:29 /11:41 /12:151
/13:214 /14:578 /15:1098 /16:7556 /17:3449 /18:4214
/19:7715 /20:12464 /21:15415 /22:27787 /23:27578 /24:154257
/25:61 /26:84 /27:36 /28:13 /29:16 /30:10
/31:0 /32:5
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
8151 3748 7287 UNINET, MX
22773 2527 3382 ASN-CXA-ALL-CCI-22773-RDC, US
16509 2348 13234 AMAZON-02, US
11830 1696 1995 Instituto Costarricense de Electricidad y Telecom., CR
39891 1165 2276 ALJAWWALSTC-AS, SA
10620 1088 1929 Telmex Colombia S.A., CO
36352 1011 2491 AS-COLOCROSSING, US
209 964 1664 CENTURYLINK-US-LEGACY-QWEST, US
19901 953 1221 BRSPD-PUBLIC, US
11776 883 1895 ATLANTICBB-JOHNSTOWN, US
Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:66 2:467 3:638 4:5 5:833 6:156
7:5 8:665 11:171 12:983 13:299 14:110
15:301 16:244 17:5 18:886 20:175 21:4
22:188 23:2617 24:644 27:21 29:19 31:460
32:9 34:10 35:135 36:1319 37:1010 38:1924
39:551 40:62 41:928 42:210 43:191 44:35
45:3738 46:958 47:96 49:19 50:351 51:513
52:1383 54:295 55:1085 56:11 57:16 58:18
59:43 60:16 61:72 62:546 63:757 64:1940
65:1083 66:1537 67:950 68:425 69:1130 70:445
71:205 72:777 74:960 75:426 76:249 77:530
78:333 79:283 80:296 81:352 82:745 83:249
84:339 85:469 86:233 87:241 88:277 89:837
90:103 91:947 92:595 93:456 94:934 95:683
96:290 97:66 98:470 99:164 100:35 101:20
102:371 103:1220 104:1494 105:132 106:16 107:1495
108:549 109:389 110:36 111:1916 112:449 113:35
114:43 115:13 116:62 117:1036 118:63 119:131
120:1174 121:46 122:67 123:71 124:56 125:25
128:476 129:285 130:702 131:912 132:560 133:211
134:491 135:111 136:579 137:500 138:885 139:441
140:709 141:449 142:1030 143:646 144:427 145:112
146:667 147:520 148:865 149:770 150:381 151:642
152:477 153:126 154:1827 155:865 156:1375 157:381
158:536 159:686 160:836 161:696 162:965 163:358
164:714 165:801 166:773 167:625 168:1135 169:148
170:1619 171:123 172:1378 173:848 174:259 175:55
176:741 177:879 178:508 179:695 180:47 181:1742
182:26 183:866 184:480 185:3328 186:2027 187:1282
188:797 189:1702 190:4232 191:424 192:5155 193:1811
194:1215 195:914 196:798 197:1550 198:2715 199:4888
200:3602 201:3287 202:992 203:739 204:2154 205:1951
206:1538 207:1491 208:1401 209:1962 210:308 211:430
212:913 213:849 214:982 215:42 216:2532 217:402
218:516 219:19 220:26 221:304 222:32 223:760
End of report
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