Routing Table Report 04:00 +10GMT Tue 21 Feb, 2012
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 398213
Prefixes after maximum aggregation: 169928
Deaggregation factor: 2.34
Unique aggregates announced to Internet: 192640
Total ASes present in the Internet Routing Table: 40151
Prefixes per ASN: 9.92
Origin-only ASes present in the Internet Routing Table: 32768
Origin ASes announcing only one prefix: 15517
Transit ASes present in the Internet Routing Table: 5398
Transit-only ASes present in the Internet Routing Table: 143
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: 329
Unregistered ASNs in the Routing Table: 130
Number of 32-bit ASNs allocated by the RIRs: 2285
Number of 32-bit ASNs visible in the Routing Table: 1985
Prefixes from 32-bit ASNs in the Routing Table: 4789
Special use prefixes present in the Routing Table: 2
Prefixes being announced from unallocated address space: 248
Number of addresses announced to Internet: 2516745296
Equivalent to 150 /8s, 2 /16s and 124 /24s
Percentage of available address space announced: 67.9
Percentage of allocated address space announced: 67.9
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 92.0
Total number of prefixes smaller than registry allocations: 169267
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 98017
Total APNIC prefixes after maximum aggregation: 31800
APNIC Deaggregation factor: 3.08
Prefixes being announced from the APNIC address blocks: 94327
Unique aggregates announced from the APNIC address blocks: 39163
APNIC Region origin ASes present in the Internet Routing Table: 4663
APNIC Prefixes per ASN: 20.23
APNIC Region origin ASes announcing only one prefix: 1238
APNIC Region transit ASes present in the Internet Routing Table: 738
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: 149
Number of APNIC addresses announced to Internet: 636134496
Equivalent to 37 /8s, 234 /16s and 164 /24s
Percentage of available APNIC address space announced: 80.7
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: 148387
Total ARIN prefixes after maximum aggregation: 75316
ARIN Deaggregation factor: 1.97
Prefixes being announced from the ARIN address blocks: 120273
Unique aggregates announced from the ARIN address blocks: 49504
ARIN Region origin ASes present in the Internet Routing Table: 14902
ARIN Prefixes per ASN: 8.07
ARIN Region origin ASes announcing only one prefix: 5673
ARIN Region transit ASes present in the Internet Routing Table: 1563
Average ARIN Region AS path length visible: 4.0
Max ARIN Region AS path length visible: 22
Number of ARIN region 32-bit ASNs visible in the Routing Table: 15
Number of ARIN addresses announced to Internet: 805257920
Equivalent to 47 /8s, 255 /16s and 66 /24s
Percentage of available ARIN address space announced: 64.0
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: 99286
Total RIPE prefixes after maximum aggregation: 52532
RIPE Deaggregation factor: 1.89
Prefixes being announced from the RIPE address blocks: 91017
Unique aggregates announced from the RIPE address blocks: 56181
RIPE Region origin ASes present in the Internet Routing Table: 16317
RIPE Prefixes per ASN: 5.58
RIPE Region origin ASes announcing only one prefix: 8002
RIPE Region transit ASes present in the Internet Routing Table: 2605
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: 1360
Number of RIPE addresses announced to Internet: 501068040
Equivalent to 29 /8s, 221 /16s and 177 /24s
Percentage of available RIPE address space announced: 80.7
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: 38590
Total LACNIC prefixes after maximum aggregation: 8100
LACNIC Deaggregation factor: 4.76
Prefixes being announced from the LACNIC address blocks: 38256
Unique aggregates announced from the LACNIC address blocks: 19533
LACNIC Region origin ASes present in the Internet Routing Table: 1572
LACNIC Prefixes per ASN: 24.34
LACNIC Region origin ASes announcing only one prefix: 441
LACNIC Region transit ASes present in the Internet Routing Table: 294
Average LACNIC Region AS path length visible: 4.4
Max LACNIC Region AS path length visible: 24
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 457
Number of LACNIC addresses announced to Internet: 96708488
Equivalent to 5 /8s, 195 /16s and 167 /24s
Percentage of available LACNIC address space announced: 64.0
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: 8966
Total AfriNIC prefixes after maximum aggregation: 2090
AfriNIC Deaggregation factor: 4.29
Prefixes being announced from the AfriNIC address blocks: 6989
Unique aggregates announced from the AfriNIC address blocks: 2122
AfriNIC Region origin ASes present in the Internet Routing Table: 515
AfriNIC Prefixes per ASN: 13.57
AfriNIC Region origin ASes announcing only one prefix: 163
AfriNIC Region transit ASes present in the Internet Routing Table: 119
Average AfriNIC Region AS path length visible: 4.4
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: 31435520
Equivalent to 1 /8s, 223 /16s and 171 /24s
Percentage of available AfriNIC address space announced: 46.8
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 2486 11107 989 Korea Telecom (KIX)
17974 1724 503 36 PT TELEKOMUNIKASI INDONESIA
7545 1641 303 85 TPG Internet Pty Ltd
4755 1550 385 159 TATA Communications formerly
7552 1265 1064 7 Vietel Corporation
9829 1181 997 29 BSNL National Internet Backbo
4808 1148 2113 318 CNCGROUP IP network: China169
9583 1126 84 483 Sify Limited
24560 1019 385 167 Bharti Airtel Ltd., Telemedia
18101 949 130 155 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 3440 3807 201 bellsouth.net, inc.
7029 3410 1014 159 Windstream Communications Inc
18566 2091 382 177 Covad Communications
1785 1871 680 126 PaeTec Communications, Inc.
20115 1627 1550 630 Charter Communications
4323 1606 1043 381 Time Warner Telecom
22773 1528 2910 110 Cox Communications, Inc.
30036 1406 251 747 Mediacom Communications Corp
19262 1388 4703 397 Verizon Global Networks
7018 1305 6980 847 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 1811 480 15 Corbina telecom
2118 1399 97 13 EUnet/RELCOM Autonomous Syste
15557 1098 2184 60 LDCOM NETWORKS
34984 654 188 172 BILISIM TELEKOM
6830 644 1927 413 UPC Distribution Services
20940 615 198 472 Akamai Technologies European
12479 608 644 55 Uni2 Autonomous System
8551 573 360 81 Bezeq International
31148 538 37 9 FreeNet ISP
3320 533 8450 399 Deutsche Telekom AG
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 1745 323 173 TVCABLE BOGOTA
28573 1671 1085 65 NET Servicos de Comunicao S.A
8151 1479 3007 350 UniNet S.A. de C.V.
7303 1264 758 183 Telecom Argentina Stet-France
26615 813 668 34 Tim Brasil S.A.
27947 660 67 108 Telconet S.A
11172 632 91 73 Servicios Alestra S.A de C.V
22047 581 322 17 VTR PUNTO NET S.A.
3816 552 237 91 Empresa Nacional de Telecomun
6503 552 418 66 AVANTEL, S.A.
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
8452 1235 958 13 TEDATA
24863 832 274 37 LINKdotNET AS number
6713 489 649 18 Itissalat Al-MAGHRIB
3741 278 939 229 The Internet Solution
33776 237 13 14 Starcomms Nigeria Limited
15706 226 32 6 Sudatel Internet Exchange Aut
29571 214 17 12 Ci Telecom Autonomous system
12258 197 28 62 Vodacom Internet Company
24835 194 80 8 RAYA Telecom - Egypt
16637 162 649 82 MTN Network Solutions
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 3440 3807 201 bellsouth.net, inc.
7029 3410 1014 159 Windstream Communications Inc
4766 2486 11107 989 Korea Telecom (KIX)
18566 2091 382 177 Covad Communications
1785 1871 680 126 PaeTec Communications, Inc.
8402 1811 480 15 Corbina telecom
10620 1745 323 173 TVCABLE BOGOTA
17974 1724 503 36 PT TELEKOMUNIKASI INDONESIA
28573 1671 1085 65 NET Servicos de Comunicao S.A
7545 1641 303 85 TPG Internet Pty Ltd
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 3410 3251 Windstream Communications Inc
18566 2091 1914 Covad Communications
8402 1811 1796 Corbina telecom
1785 1871 1745 PaeTec Communications, Inc.
17974 1724 1688 PT TELEKOMUNIKASI INDONESIA
28573 1671 1606 NET Servicos de Comunicao S.A
10620 1745 1572 TVCABLE BOGOTA
7545 1641 1556 TPG Internet Pty Ltd
4766 2486 1497 Korea Telecom (KIX)
22773 1528 1418 Cox Communications, Inc.
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
Prefixes from private and non-routed address space (Global)
-----------------------------------------------------------
Prefix Origin AS Description
128.0.0.0/21 12654 RIPE NCC RIS Project
128.0.24.0/24 12654 RIPE NCC RIS Project
Complete listing at http://thyme.rand.apnic.net/current/data-dsua
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
14.192.0.0/22 45464 Room 201, TGU Bldg
14.192.4.0/22 45464 Room 201, TGU Bldg
14.192.8.0/22 45464 Room 201, TGU Bldg
14.192.12.0/22 45464 Room 201, TGU Bldg
14.192.16.0/22 45464 Room 201, TGU Bldg
14.192.20.0/22 45464 Room 201, TGU Bldg
14.192.24.0/22 45464 Room 201, TGU Bldg
14.192.28.0/22 45464 Room 201, TGU Bldg
23.27.0.0/16 18779 Guru.com
27.112.114.0/24 23884 Proimage Engineering and Comm
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 /11:80 /12:231
/13:459 /14:813 /15:1473 /16:12154 /17:6211 /18:10356
/19:20456 /20:28345 /21:29309 /22:39869 /23:37028 /24:207734
/25:1177 /26:1427 /27:776 /28:169 /29:56 /30:14
/31:0 /32:18
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 3066 3410 Windstream Communications Inc
6389 2110 3440 bellsouth.net, inc.
18566 2040 2091 Covad Communications
8402 1790 1811 Corbina telecom
10620 1642 1745 TVCABLE BOGOTA
30036 1357 1406 Mediacom Communications Corp
11492 1118 1155 Cable One
1785 1064 1871 PaeTec Communications, Inc.
8452 1045 1235 TEDATA
15557 1045 1098 LDCOM NETWORKS
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:501 2:767 4:14 5:1 6:3 8:385
12:1956 13:1 14:603 15:11 16:3 17:7
20:8 23:135 24:1732 27:1196 31:942 32:65
33:2 34:2 36:9 37:186 38:781 40:115
41:3141 42:96 43:1 44:3 46:1310 47:3
49:331 50:504 52:13 54:2 55:10 56:3
57:38 58:969 59:495 60:344 61:1192 62:966
63:2005 64:4133 65:2282 66:4450 67:2035 68:1173
69:3163 70:934 71:414 72:1793 74:2655 75:468
76:320 77:977 78:967 79:475 80:1211 81:878
82:620 83:524 84:584 85:1151 86:738 87:913
88:334 89:1555 90:282 91:4478 92:511 93:1354
94:1376 95:1107 96:419 97:312 98:802 99:38
100:4 101:146 103:812 106:65 107:157 108:168
109:1532 110:700 111:854 112:437 113:530 114:603
115:760 116:867 117:710 118:903 119:1257 120:363
121:690 122:1623 123:1078 124:1338 125:1324 128:536
129:190 130:216 131:577 132:165 133:21 134:234
135:62 136:215 137:181 138:288 139:144 140:487
141:263 142:394 143:403 144:513 145:69 146:484
147:236 148:734 149:282 150:163 151:198 152:447
153:170 154:7 155:399 156:213 157:368 158:160
159:512 160:320 161:246 162:343 163:187 164:530
165:391 166:559 167:458 168:762 169:146 170:838
171:115 172:4 173:1723 174:584 175:422 176:506
177:493 178:1275 180:1178 181:68 182:728 183:279
184:431 185:1 186:1951 187:861 188:1080 189:1180
190:5518 192:5981 193:5534 194:4339 195:3401 196:1286
197:165 198:3612 199:4399 200:5702 201:1740 202:8410
203:8631 204:4364 205:2434 206:2746 207:2794 208:4077
209:3556 210:2758 211:1480 212:2013 213:1836 214:848
215:92 216:5023 217:1497 218:549 219:338 220:1224
221:559 222:324 223:316
End of report
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