Routing Table Report 04:00 +10GMT Fri 28 Oct, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 379319
Prefixes after maximum aggregation: 166229
Deaggregation factor: 2.28
Unique aggregates announced to Internet: 186133
Total ASes present in the Internet Routing Table: 39187
Prefixes per ASN: 9.68
Origin-only ASes present in the Internet Routing Table: 32364
Origin ASes announcing only one prefix: 15504
Transit ASes present in the Internet Routing Table: 5259
Transit-only ASes present in the Internet Routing Table: 135
Average AS path length visible in the Internet Routing Table: 4.4
Max AS path length visible: 33
Max AS path prepend of ASN (48687) 24
Prefixes from unregistered ASNs in the Routing Table: 1568
Unregistered ASNs in the Routing Table: 838
Number of 32-bit ASNs allocated by the RIRs: 1905
Number of 32-bit ASNs visible in the Routing Table: 1564
Prefixes from 32-bit ASNs in the Routing Table: 3633
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 91
Number of addresses announced to Internet: 2488411680
Equivalent to 148 /8s, 82 /16s and 38 /24s
Percentage of available address space announced: 67.1
Percentage of allocated address space announced: 67.1
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 91.5
Total number of prefixes smaller than registry allocations: 159464
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 94829
Total APNIC prefixes after maximum aggregation: 30976
APNIC Deaggregation factor: 3.06
Prefixes being announced from the APNIC address blocks: 91273
Unique aggregates announced from the APNIC address blocks: 38079
APNIC Region origin ASes present in the Internet Routing Table: 4587
APNIC Prefixes per ASN: 19.90
APNIC Region origin ASes announcing only one prefix: 1263
APNIC Region transit ASes present in the Internet Routing Table: 719
Average APNIC Region AS path length visible: 4.5
Max APNIC Region AS path length visible: 21
Number of APNIC region 32-bit ASNs visible in the Routing Table: 98
Number of APNIC addresses announced to Internet: 629398688
Equivalent to 37 /8s, 131 /16s and 220 /24s
Percentage of available APNIC address space announced: 79.8
APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079, 55296-56319,
58368-59391, 131072-132095, 132096-133119
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, 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: 145706
Total ARIN prefixes after maximum aggregation: 74475
ARIN Deaggregation factor: 1.96
Prefixes being announced from the ARIN address blocks: 117644
Unique aggregates announced from the ARIN address blocks: 48221
ARIN Region origin ASes present in the Internet Routing Table: 14754
ARIN Prefixes per ASN: 7.97
ARIN Region origin ASes announcing only one prefix: 5672
ARIN Region transit ASes present in the Internet Routing Table: 1560
Average ARIN Region AS path length visible: 4.0
Max ARIN Region AS path length visible: 25
Number of ARIN region 32-bit ASNs visible in the Routing Table: 12
Number of ARIN addresses announced to Internet: 804669952
Equivalent to 47 /8s, 246 /16s and 74 /24s
Percentage of available ARIN address space announced: 63.9
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, 393216-394239
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,
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, 173/8,
174/8, 184/8, 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: 91017
Total RIPE prefixes after maximum aggregation: 50797
RIPE Deaggregation factor: 1.79
Prefixes being announced from the RIPE address blocks: 83660
Unique aggregates announced from the RIPE address blocks: 54244
RIPE Region origin ASes present in the Internet Routing Table: 16069
RIPE Prefixes per ASN: 5.21
RIPE Region origin ASes announcing only one prefix: 7970
RIPE Region transit ASes present in the Internet Routing Table: 2518
Average RIPE Region AS path length visible: 4.7
Max RIPE Region AS path length visible: 33
Number of RIPE region 32-bit ASNs visible in the Routing Table: 1094
Number of RIPE addresses announced to Internet: 491203904
Equivalent to 29 /8s, 71 /16s and 45 /24s
Percentage of available RIPE address space announced: 79.1
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
196608-198655
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,
176/8, 178/8, 185/8, 193/8, 194/8, 195/8, 212/8,
213/8, 217/8,
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 35447
Total LACNIC prefixes after maximum aggregation: 7890
LACNIC Deaggregation factor: 4.49
Prefixes being announced from the LACNIC address blocks: 34897
Unique aggregates announced from the LACNIC address blocks: 18143
LACNIC Region origin ASes present in the Internet Routing Table: 1542
LACNIC Prefixes per ASN: 22.63
LACNIC Region origin ASes announcing only one prefix: 444
LACNIC Region transit ASes present in the Internet Routing Table: 281
Average LACNIC Region AS path length visible: 4.5
Max LACNIC Region AS path length visible: 19
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 356
Number of LACNIC addresses announced to Internet: 92331456
Equivalent to 5 /8s, 128 /16s and 221 /24s
Percentage of available LACNIC address space announced: 61.1
LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247,
262144-263167 plus ERX transfers
LACNIC Address Blocks 177/8, 179/8, 181/8, 186/8, 187/8, 189/8, 190/8,
200/8, 201/8,
AfriNIC Region Analysis Summary
-------------------------------
Prefixes being announced by AfriNIC Region ASes: 8518
Total AfriNIC prefixes after maximum aggregation: 2014
AfriNIC Deaggregation factor: 4.23
Prefixes being announced from the AfriNIC address blocks: 6621
Unique aggregates announced from the AfriNIC address blocks: 1980
AfriNIC Region origin ASes present in the Internet Routing Table: 491
AfriNIC Prefixes per ASN: 13.48
AfriNIC Region origin ASes announcing only one prefix: 155
AfriNIC Region transit ASes present in the Internet Routing Table: 108
Average AfriNIC Region AS path length visible: 4.6
Max AfriNIC Region AS path length visible: 25
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 4
Number of AfriNIC addresses announced to Internet: 27837952
Equivalent to 1 /8s, 168 /16s and 198 /24s
Percentage of available AfriNIC address space announced: 41.5
AfriNIC AS Blocks 36864-37887, 327680-328703 & ERX transfers
AfriNIC Address Blocks 41/8, 102/8, 105/8, 197/8,
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
4766 2507 11096 967 Korea Telecom (KIX)
17974 1910 519 33 PT TELEKOMUNIKASI INDONESIA
7545 1613 303 86 TPG Internet Pty Ltd
4755 1540 637 174 TATA Communications formerly
7552 1390 1064 8 Vietel Corporation
9829 1166 989 28 BSNL National Internet Backbo
9583 1091 80 499 Sify Limited
4808 1088 2103 312 CNCGROUP IP network: China169
24560 964 342 218 Bharti Airtel Ltd., Telemedia
18101 953 166 150 Reliance Infocom Ltd Internet
Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-APNIC
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6389 3545 3814 220 bellsouth.net, inc.
7029 2329 1016 197 Windstream Communications Inc
18566 2097 383 177 Covad Communications
1785 1840 680 122 PaeTec Communications, Inc.
4323 1623 1078 388 Time Warner Telecom
20115 1595 1546 620 Charter Communications
22773 1458 2907 100 Cox Communications, Inc.
19262 1395 4728 400 Verizon Global Networks
30036 1391 252 671 Mediacom Communications Corp
7018 1317 7030 861 AT&T WorldNet Services
Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-ARIN
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8402 1524 352 13 Corbina telecom
6830 653 1927 415 UPC Distribution Services
34984 590 108 180 BILISIM TELEKOM
20940 548 182 422 Akamai Technologies European
3320 504 8169 384 Deutsche Telekom AG
12479 479 596 9 Uni2 Autonomous System
3292 478 2074 405 TDC Tele Danmark
8866 461 133 26 Bulgarian Telecommunication C
8551 403 354 44 Bezeq International
31148 401 21 111 FreeNet ISP
Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-RIPE
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
10620 1698 314 155 TVCABLE BOGOTA
28573 1470 1033 70 NET Servicos de Comunicao S.A
8151 1422 2927 348 UniNet S.A. de C.V.
7303 1227 747 177 Telecom Argentina Stet-France
27947 589 72 84 Telconet S.A
22047 580 322 17 VTR PUNTO NET S.A.
6503 572 450 69 AVANTEL, S.A.
7738 552 1050 31 Telecomunicacoes da Bahia S.A
3816 538 233 95 Empresa Nacional de Telecomun
11172 525 86 96 Servicios Alestra S.A de C.V
Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-LACNIC
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
24863 799 146 33 LINKdotNET AS number
8452 651 446 12 TEDATA
15475 443 74 8 Nile Online
36992 299 415 21 Etisalat MISR
3741 280 939 229 The Internet Solution
6713 244 519 14 Itissalat Al-MAGHRIB
15706 240 32 6 Sudatel Internet Exchange Aut
33776 240 13 8 Starcomms Nigeria Limited
29571 218 17 13 Ci Telecom Autonomous system
12258 196 28 57 Vodacom Internet Company
Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-AFRINIC
Global Per AS prefix count summary
----------------------------------
ASN No of nets /20 equiv MaxAgg Description
6389 3545 3814 220 bellsouth.net, inc.
4766 2507 11096 967 Korea Telecom (KIX)
7029 2329 1016 197 Windstream Communications Inc
18566 2097 383 177 Covad Communications
17974 1910 519 33 PT TELEKOMUNIKASI INDONESIA
1785 1840 680 122 PaeTec Communications, Inc.
10620 1698 314 155 TVCABLE BOGOTA
4323 1623 1078 388 Time Warner Telecom
7545 1613 303 86 TPG Internet Pty Ltd
20115 1595 1546 620 Charter Communications
Complete listing at http://thyme.rand.apnic.net/current/data-ASnet
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
7029 2329 2132 Windstream Communications Inc
18566 2097 1920 Covad Communications
17974 1910 1877 PT TELEKOMUNIKASI INDONESIA
1785 1840 1718 PaeTec Communications, Inc.
10620 1698 1543 TVCABLE BOGOTA
4766 2507 1540 Korea Telecom (KIX)
7545 1613 1527 TPG Internet Pty Ltd
8402 1524 1511 Corbina telecom
28573 1470 1400 NET Servicos de Comunicao S.A
7552 1390 1382 Vietel Corporation
Complete listing at http://thyme.rand.apnic.net/current/data-CIDRnet
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
15132 UNALLOCATED 12.9.150.0/24 7018 AT&T WorldNet Servic
32567 UNALLOCATED 12.14.170.0/24 4323 Time Warner Telecom
32567 UNALLOCATED 12.25.107.0/24 4323 Time Warner Telecom
25639 UNALLOCATED 12.41.169.0/24 7018 AT&T WorldNet Servic
13317 UNALLOCATED 12.44.10.0/24 7018 AT&T WorldNet Servic
23502 UNALLOCATED 12.44.44.0/24 7018 AT&T WorldNet Servic
17300 UNALLOCATED 12.45.103.0/24 7018 AT&T WorldNet Servic
17300 UNALLOCATED 12.45.110.0/24 701 UUNET Technologies,
16476 UNALLOCATED 12.46.27.0/24 7018 AT&T WorldNet Servic
32873 UNALLOCATED 12.46.100.0/23 10912 InterNAP Network Ser
Complete listing at http://thyme.rand.apnic.net/current/data-badAS
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
24.225.128.0/18 36377 Comcast Telecommunications, I
24.225.192.0/23 36377 Comcast Telecommunications, I
24.225.192.0/18 36377 Comcast Telecommunications, I
24.225.224.0/21 36377 Comcast Telecommunications, I
24.225.237.0/24 36377 Comcast Telecommunications, I
24.225.248.0/21 36377 Comcast Telecommunications, I
41.222.79.0/24 36938 >>UNKNOWN<<
41.223.92.0/22 36936 >>UNKNOWN<<
62.61.220.0/24 24974 Tachyon Europe BV - Wireless
62.61.221.0/24 24974 Tachyon Europe BV - Wireless
Complete listing at http://thyme.rand.apnic.net/current/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 /8:19 /9:12 /10:27 /11:81 /12:236
/13:465 /14:808 /15:1424 /16:12014 /17:6064 /18:10077
/19:19935 /20:27530 /21:27541 /22:37197 /23:35208 /24:197233
/25:1164 /26:1354 /27:756 /28:165 /29:4 /30:0
/31:0 /32:5
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2185 3545 bellsouth.net, inc.
18566 2046 2097 Covad Communications
7029 1999 2329 Windstream Communications Inc
10620 1593 1698 TVCABLE BOGOTA
8402 1500 1524 Corbina telecom
30036 1352 1391 Mediacom Communications Corp
11492 1118 1156 Cable One
1785 1056 1840 PaeTec Communications, Inc.
7011 1050 1168 Citizens Utilities
22773 946 1458 Cox Communications, Inc.
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:409 2:484 4:15 5:1 6:3 8:361
12:1952 13:1 14:540 15:11 16:3 17:7
20:9 23:59 24:1679 27:971 31:618 32:65
33:4 34:2 36:4 38:757 40:110 41:2679
42:53 44:3 46:1009 47:3 49:296 50:435
52:13 55:7 56:2 57:40 58:883 59:494
60:363 61:1157 62:1085 63:1957 64:4059 65:2310
66:4276 67:1980 68:1154 69:3210 70:883 71:381
72:1804 74:2577 75:392 76:318 77:880 78:871
79:452 80:1132 81:835 82:503 83:527 84:618
85:1124 86:402 87:890 88:354 89:1597 90:238
91:4229 92:529 93:1531 94:1307 95:1092 96:434
97:284 98:925 99:37 101:220 103:405 106:70
107:79 108:72 109:1050 110:665 111:790 112:334
113:485 114:614 115:710 116:888 117:721 118:882
119:1261 120:339 121:693 122:1566 123:1016 124:1357
125:1362 128:243 129:185 130:164 131:618 132:146
133:21 134:219 135:54 136:213 137:140 138:287
139:123 140:485 141:308 142:389 143:423 144:493
145:63 146:458 147:224 148:641 149:267 150:167
151:192 152:447 153:178 154:7 155:388 156:208
157:363 158:154 159:484 160:329 161:214 162:341
163:174 164:511 165:370 166:537 167:437 168:742
169:146 170:872 171:86 172:4 173:1718 174:670
175:423 176:290 177:360 178:1073 180:1121 181:36
182:653 183:216 184:376 185:1 186:1304 187:705
188:952 189:867 190:5144 192:5930 193:5034 194:3557
195:3112 196:1236 197:162 198:3625 199:4164 200:5515
201:1690 202:8573 203:8486 204:4304 205:2363 206:2670
207:2828 208:4011 209:3569 210:2713 211:1460 212:2076
213:1776 214:795 215:96 216:4922 217:1599 218:564
219:343 220:1250 221:513 222:346 223:269
End of report