Routing Table Report 04:00 +10GMT Tue 25 Oct, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 380873
Prefixes after maximum aggregation: 166067
Deaggregation factor: 2.29
Unique aggregates announced to Internet: 185680
Total ASes present in the Internet Routing Table: 39163
Prefixes per ASN: 9.73
Origin-only ASes present in the Internet Routing Table: 32362
Origin ASes announcing only one prefix: 15523
Transit ASes present in the Internet Routing Table: 5255
Transit-only ASes present in the Internet Routing Table: 136
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: 1506
Unregistered ASNs in the Routing Table: 824
Number of 32-bit ASNs allocated by the RIRs: 1888
Number of 32-bit ASNs visible in the Routing Table: 1546
Prefixes from 32-bit ASNs in the Routing Table: 3551
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 89
Number of addresses announced to Internet: 2487088416
Equivalent to 148 /8s, 61 /16s and 245 /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: 160962
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 94743
Total APNIC prefixes after maximum aggregation: 30905
APNIC Deaggregation factor: 3.07
Prefixes being announced from the APNIC address blocks: 91206
Unique aggregates announced from the APNIC address blocks: 37986
APNIC Region origin ASes present in the Internet Routing Table: 4587
APNIC Prefixes per ASN: 19.88
APNIC Region origin ASes announcing only one prefix: 1267
APNIC Region transit ASes present in the Internet Routing Table: 713
Average APNIC Region AS path length visible: 4.5
Max APNIC Region AS path length visible: 19
Number of APNIC region 32-bit ASNs visible in the Routing Table: 96
Number of APNIC addresses announced to Internet: 628887392
Equivalent to 37 /8s, 124 /16s and 15 /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: 145617
Total ARIN prefixes after maximum aggregation: 74438
ARIN Deaggregation factor: 1.96
Prefixes being announced from the ARIN address blocks: 117537
Unique aggregates announced from the ARIN address blocks: 48104
ARIN Region origin ASes present in the Internet Routing Table: 14750
ARIN Prefixes per ASN: 7.97
ARIN Region origin ASes announcing only one prefix: 5674
ARIN Region transit ASes present in the Internet Routing Table: 1556
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: 804726784
Equivalent to 47 /8s, 247 /16s and 40 /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: 92927
Total RIPE prefixes after maximum aggregation: 50730
RIPE Deaggregation factor: 1.83
Prefixes being announced from the RIPE address blocks: 85584
Unique aggregates announced from the RIPE address blocks: 54163
RIPE Region origin ASes present in the Internet Routing Table: 16062
RIPE Prefixes per ASN: 5.33
RIPE Region origin ASes announcing only one prefix: 7977
RIPE Region transit ASes present in the Internet Routing Table: 2526
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: 1084
Number of RIPE addresses announced to Internet: 491101376
Equivalent to 29 /8s, 69 /16s and 156 /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: 35303
Total LACNIC prefixes after maximum aggregation: 7901
LACNIC Deaggregation factor: 4.47
Prefixes being announced from the LACNIC address blocks: 34721
Unique aggregates announced from the LACNIC address blocks: 18078
LACNIC Region origin ASes present in the Internet Routing Table: 1544
LACNIC Prefixes per ASN: 22.49
LACNIC Region origin ASes announcing only one prefix: 445
LACNIC Region transit ASes present in the Internet Routing Table: 280
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: 350
Number of LACNIC addresses announced to Internet: 91705216
Equivalent to 5 /8s, 119 /16s and 79 /24s
Percentage of available LACNIC address space announced: 60.7
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: 8561
Total AfriNIC prefixes after maximum aggregation: 2015
AfriNIC Deaggregation factor: 4.25
Prefixes being announced from the AfriNIC address blocks: 6638
Unique aggregates announced from the AfriNIC address blocks: 1990
AfriNIC Region origin ASes present in the Internet Routing Table: 493
AfriNIC Prefixes per ASN: 13.46
AfriNIC Region origin ASes announcing only one prefix: 160
AfriNIC Region transit ASes present in the Internet Routing Table: 107
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: 27852288
Equivalent to 1 /8s, 168 /16s and 254 /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 2503 11096 964 Korea Telecom (KIX)
17974 1896 519 33 PT TELEKOMUNIKASI INDONESIA
7545 1611 303 86 TPG Internet Pty Ltd
4755 1539 637 173 TATA Communications formerly
7552 1390 1064 8 Vietel Corporation
9829 1166 989 28 BSNL National Internet Backbo
9583 1091 80 499 Sify Limited
4808 1089 2103 312 CNCGROUP IP network: China169
24560 964 342 218 Bharti Airtel Ltd., Telemedia
18101 953 166 149 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 2327 1016 197 Windstream Communications Inc
18566 2098 383 177 Covad Communications
1785 1840 680 122 PaeTec Communications, Inc.
4323 1628 1084 393 Time Warner Telecom
20115 1589 1545 621 Charter Communications
22773 1462 2907 100 Cox Communications, Inc.
30036 1396 251 671 Mediacom Communications Corp
19262 1395 4728 400 Verizon Global Networks
7018 1320 7030 863 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
3352 2197 2317 51 Ibernet, Internet Access Netw
8402 1510 352 13 Corbina telecom
6830 653 1927 415 UPC Distribution Services
34984 588 108 180 BILISIM TELEKOM
20940 548 182 422 Akamai Technologies European
3320 504 8169 384 Deutsche Telekom AG
12479 482 595 8 Uni2 Autonomous System
3292 480 2080 407 TDC Tele Danmark
8866 459 133 26 Bulgarian Telecommunication C
29049 423 31 55 AzerSat LLC.
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 1694 313 155 TVCABLE BOGOTA
28573 1436 1032 69 NET Servicos de Comunicao S.A
8151 1429 2913 352 UniNet S.A. de C.V.
7303 1229 747 177 Telecom Argentina Stet-France
27947 588 72 84 Telconet S.A
22047 580 322 17 VTR PUNTO NET S.A.
6503 571 450 69 AVANTEL, S.A.
7738 552 1050 31 Telecomunicacoes da Bahia S.A
3816 538 233 95 Empresa Nacional de Telecomun
11172 521 85 93 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 804 146 36 LINKdotNET AS number
8452 651 446 12 TEDATA
15475 443 74 8 Nile Online
36992 300 415 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
29571 218 17 13 Ci Telecom Autonomous system
33776 208 13 14 Starcomms Nigeria Limited
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 2503 11096 964 Korea Telecom (KIX)
7029 2327 1016 197 Windstream Communications Inc
3352 2197 2317 51 Ibernet, Internet Access Netw
18566 2098 383 177 Covad Communications
17974 1896 519 33 PT TELEKOMUNIKASI INDONESIA
1785 1840 680 122 PaeTec Communications, Inc.
10620 1694 313 155 TVCABLE BOGOTA
4323 1628 1084 393 Time Warner Telecom
7545 1611 303 86 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
3352 2197 2146 Ibernet, Internet Access Netw
7029 2327 2130 Windstream Communications Inc
18566 2098 1921 Covad Communications
17974 1896 1863 PT TELEKOMUNIKASI INDONESIA
1785 1840 1718 PaeTec Communications, Inc.
4766 2503 1539 Korea Telecom (KIX)
10620 1694 1539 TVCABLE BOGOTA
7545 1611 1525 TPG Internet Pty Ltd
8402 1510 1497 Corbina telecom
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
/13:464 /14:808 /15:1424 /16:12017 /17:6035 /18:10051
/19:19966 /20:27491 /21:27664 /22:37390 /23:35953 /24:197800
/25:1157 /26:1349 /27:752 /28:168 /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 2047 2098 Covad Communications
7029 1998 2327 Windstream Communications Inc
3352 1745 2197 Ibernet, Internet Access Netw
10620 1589 1694 TVCABLE BOGOTA
8402 1486 1510 Corbina telecom
30036 1358 1396 Mediacom Communications Corp
11492 1118 1156 Cable One
1785 1057 1840 PaeTec Communications, Inc.
7011 1048 1166 Citizens Utilities
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:407 2:487 4:15 5:1 6:3 8:361
12:1954 13:1 14:541 15:11 16:3 17:7
20:9 23:58 24:1673 27:964 31:609 32:65
33:4 34:2 36:4 38:756 40:110 41:2682
42:52 44:3 46:1005 47:3 49:297 50:441
52:13 55:6 56:2 57:39 58:884 59:494
60:362 61:1177 62:1085 63:1959 64:4046 65:2308
66:4285 67:1988 68:1151 69:3192 70:892 71:379
72:1804 74:2559 75:389 76:320 77:883 78:865
79:477 80:1580 81:953 82:498 83:575 84:620
85:1114 86:405 87:889 88:418 89:1595 90:237
91:4217 92:534 93:1535 94:1307 95:1095 96:437
97:284 98:920 99:37 101:220 103:395 106:70
107:74 108:72 109:1047 110:670 111:791 112:332
113:484 114:612 115:704 116:882 117:721 118:899
119:1261 120:339 121:692 122:1566 123:1016 124:1357
125:1361 128:249 129:184 130:164 131:592 132:146
133:21 134:219 135:54 136:213 137:140 138:284
139:123 140:489 141:298 142:389 143:427 144:492
145:63 146:475 147:215 148:643 149:267 150:166
151:192 152:447 153:178 154:7 155:381 156:208
157:362 158:154 159:481 160:326 161:214 162:340
163:174 164:510 165:370 166:538 167:438 168:742
169:146 170:872 171:86 172:4 173:1710 174:685
175:423 176:278 177:344 178:1062 180:1095 181:36
182:653 183:218 184:374 185:1 186:1294 187:709
188:938 189:864 190:5131 192:5921 193:5040 194:3562
195:3103 196:1252 197:164 198:3624 199:4173 200:5525
201:1682 202:8569 203:8505 204:4294 205:2351 206:2667
207:2829 208:4027 209:3569 210:2695 211:1460 212:2073
213:1803 214:791 215:95 216:4926 217:1612 218:564
219:343 220:1243 221:515 222:345 223:278
End of report
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