Routing Table Report 00:00 GMT Mon 16 Jan, 2012
NB: RouteViews data includes iBGP information from some ASNs.
Treat the information provided below appropriately.
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/rviews/
Analysis Summary
----------------
BGP routing table entries examined: 395016
Prefixes after maximum aggregation: 170085
Deaggregation factor: 2.32
Unique aggregates announced to Internet: 191140
Total ASes present in the Internet Routing Table: 39859
Prefixes per ASN: 9.91
Origin-only ASes present in the Internet Routing Table: 32716
Origin ASes announcing only one prefix: 15545
Transit ASes present in the Internet Routing Table: 5286
Transit-only ASes present in the Internet Routing Table: 130
Average AS path length visible in the Internet Routing Table: 4.0
Max AS path length visible: 30
Max AS path prepend of ASN (36992) 22
Prefixes from unregistered ASNs in the Routing Table: 6658
Unregistered ASNs in the Routing Table: 1084
Number of 32-bit ASNs allocated by the RIRs: 2187
Number of 32-bit ASNs visible in the Routing Table: 1857
Prefixes from 32-bit ASNs in the Routing Table: 4465
Special use prefixes present in the Routing Table: 88
Prefixes being announced from unallocated address space: 118
Number of addresses announced to Internet: 2509799654
Equivalent to 149 /8s, 152 /16s and 128 /24s
Percentage of available address space announced: 67.7
Percentage of allocated address space announced: 67.7
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 91.9
Total number of prefixes smaller than registry allocations: 166048
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 94823
Total APNIC prefixes after maximum aggregation: 30375
APNIC Deaggregation factor: 3.12
Prefixes being announced from the APNIC address blocks: 91240
Unique aggregates announced from the APNIC address blocks: 38919
APNIC Region origin ASes present in the Internet Routing Table: 4626
APNIC Prefixes per ASN: 19.72
APNIC Region origin ASes announcing only one prefix: 1270
APNIC Region transit ASes present in the Internet Routing Table: 734
Average APNIC Region AS path length visible: 4.5
Max APNIC Region AS path length visible: 23
Number of APNIC region 32-bit ASNs visible in the Routing Table: 131
Number of APNIC addresses announced to Internet: 634146048
Equivalent to 37 /8s, 204 /16s and 77 /24s
Percentage of available APNIC address space announced: 80.4
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: 150261
Total ARIN prefixes after maximum aggregation: 77320
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 122023
Unique aggregates announced from the ARIN address blocks: 49135
ARIN Region origin ASes present in the Internet Routing Table: 14866
ARIN Prefixes per ASN: 8.21
ARIN Region origin ASes announcing only one prefix: 5669
ARIN Region transit ASes present in the Internet Routing Table: 1528
Average ARIN Region AS path length visible: 3.5
Max ARIN Region AS path length visible: 22
Number of ARIN region 32-bit ASNs visible in the Routing Table: 14
Number of ARIN addresses announced to Internet: 804845576
Equivalent to 47 /8s, 248 /16s and 248 /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: 98855
Total RIPE prefixes after maximum aggregation: 52143
RIPE Deaggregation factor: 1.90
Prefixes being announced from the RIPE address blocks: 89876
Unique aggregates announced from the RIPE address blocks: 55644
RIPE Region origin ASes present in the Internet Routing Table: 16266
RIPE Prefixes per ASN: 5.53
RIPE Region origin ASes announcing only one prefix: 7995
RIPE Region transit ASes present in the Internet Routing Table: 2551
Average RIPE Region AS path length visible: 4.2
Max RIPE Region AS path length visible: 30
Number of RIPE region 32-bit ASNs visible in the Routing Table: 1291
Number of RIPE addresses announced to Internet: 497598092
Equivalent to 29 /8s, 168 /16s and 190 /24s
Percentage of available RIPE address space announced: 80.2
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: 37872
Total LACNIC prefixes after maximum aggregation: 8091
LACNIC Deaggregation factor: 4.68
Prefixes being announced from the LACNIC address blocks: 37382
Unique aggregates announced from the LACNIC address blocks: 19286
LACNIC Region origin ASes present in the Internet Routing Table: 1564
LACNIC Prefixes per ASN: 23.90
LACNIC Region origin ASes announcing only one prefix: 450
LACNIC Region transit ASes present in the Internet Routing Table: 288
Average LACNIC Region AS path length visible: 4.2
Max LACNIC Region AS path length visible: 26
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 417
Number of LACNIC addresses announced to Internet: 95411976
Equivalent to 5 /8s, 175 /16s and 223 /24s
Percentage of available LACNIC address space announced: 63.2
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: 8507
Total AfriNIC prefixes after maximum aggregation: 2083
AfriNIC Deaggregation factor: 4.08
Prefixes being announced from the AfriNIC address blocks: 6540
Unique aggregates announced from the AfriNIC address blocks: 2081
AfriNIC Region origin ASes present in the Internet Routing Table: 509
AfriNIC Prefixes per ASN: 12.85
AfriNIC Region origin ASes announcing only one prefix: 161
AfriNIC Region transit ASes present in the Internet Routing Table: 118
Average AfriNIC Region AS path length visible: 4.3
Max AfriNIC Region AS path length visible: 24
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 4
Number of AfriNIC addresses announced to Internet: 30841600
Equivalent to 1 /8s, 214 /16s and 155 /24s
Percentage of available AfriNIC address space announced: 46.0
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 1905 11097 659 Korea Telecom (KIX)
17974 1719 503 36 PT TELEKOMUNIKASI INDONESIA
7545 1623 303 86 TPG Internet Pty Ltd
4755 1513 385 154 Videsh Sanchar Nigam Ltd. Aut
7552 1425 1064 7 Vietel Corporation
9829 1162 989 28 BSNL National Internet Backbo
9583 1118 81 492 Sify Limited
24560 1011 384 167 Bharti Airtel Ltd.
17488 945 161 224 Hathway IP Over Cable Interne
18101 945 131 155 Reliance Infocom Ltd Internet
Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet-APNIC
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6389 3455 3807 208 bellsouth.net, inc.
7029 3249 1033 215 Windstream Communications Inc
18566 2093 382 177 Covad Communications
1785 1866 680 124 AppliedTheory Corporation
20115 1617 1552 619 Charter Communications
4323 1599 1046 379 Time Warner Telecom
22773 1517 2909 108 Cox Communications, Inc.
30036 1489 264 696 Mediacom Communications Corp
19262 1388 4683 401 Verizon Global Networks
7018 1307 7042 857 AT&T WorldNet Services
Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet-ARIN
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8402 1659 480 15 Corbina telecom
286 1097 806 198 KPNQwest Backbone AS
15557 1096 2161 64 LDCOM NETWORKS
2118 927 99 14 EUnet/RELCOM Autonomous Syste
31148 660 35 9 FreeNet ISP
6830 645 1928 413 UPC Distribution Services
34984 639 188 174 Tellcom Iletisim Hizmetleri
8551 570 360 81 Bezeq International
20940 564 183 452 Akamai Technologies European
12479 551 636 53 Uni2 Autonomous System
Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet-RIPE
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
10620 1738 321 159 TVCABLE BOGOTA
28573 1571 1066 77 Types of queries are: POCs, o
8151 1500 2978 338 Uninet S.A. de C.V.
7303 1256 756 179 Telecom Argentina Stet-France
27947 636 73 95 Telconet S.A
22047 582 322 17 Types of queries are: POCs, o
6503 551 434 70 AVANTEL, S.A.
7738 551 1050 31 Telecomunicacoes da Bahia S.A
3816 550 238 92 COLOMBIA TELECOMUNICACIONES S
10481 547 429 25 Prima S.A.
Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet-LACNIC
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8452 1029 958 13 TEDATA
24863 795 146 36 LINKdotNET AS number
3741 280 939 229 The Internet Solution
6713 250 649 18 Itissalat Al-MAGHRIB
33776 240 13 8 Starcomms Nigeria Limited
15706 239 32 6 Sudatel Internet Exchange Aut
29571 214 17 12 Ci Telecom Autonomous system
12258 196 28 61 YEBO-AS
24835 188 80 8 RAYA Telecom - Egypt
16637 157 664 85 Johnnic e-Ventures
Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet-AFRINIC
Global Per AS prefix count summary
----------------------------------
ASN No of nets /20 equiv MaxAgg Description
6389 3455 3807 208 bellsouth.net, inc.
7029 3249 1033 215 Windstream Communications Inc
18566 2093 382 177 Covad Communications
4766 1905 11097 659 Korea Telecom (KIX)
1785 1866 680 124 AppliedTheory Corporation
10620 1738 321 159 TVCABLE BOGOTA
17974 1719 503 36 PT TELEKOMUNIKASI INDONESIA
8402 1659 480 15 Corbina telecom
7545 1623 303 86 TPG Internet Pty Ltd
20115 1617 1552 619 Charter Communications
Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
7029 3249 3034 Windstream Communications Inc
18566 2093 1916 Covad Communications
1785 1866 1742 AppliedTheory Corporation
17974 1719 1683 PT TELEKOMUNIKASI INDONESIA
8402 1659 1644 Corbina telecom
10620 1738 1579 TVCABLE BOGOTA
7545 1623 1537 TPG Internet Pty Ltd
28573 1571 1494 Types of queries are: POCs, o
7552 1425 1418 Vietel Corporation
22773 1517 1409 Cox Communications, Inc.
Complete listing at http://thyme.rand.apnic.net/rviews/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 7018 AT&T WorldNet Servic
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 7018 AT&T WorldNet Servic
Complete listing at http://thyme.rand.apnic.net/rviews/data-badAS
Prefixes from private and non-routed address space (Global)
-----------------------------------------------------------
Prefix Origin AS Description
10.29.244.56/29 286 KPNQwest Backbone AS
10.29.245.1/32 286 KPNQwest Backbone AS
10.29.245.2/32 286 KPNQwest Backbone AS
10.29.245.15/32 286 KPNQwest Backbone AS
10.29.245.19/32 286 KPNQwest Backbone AS
10.29.245.20/32 286 KPNQwest Backbone AS
10.29.245.21/32 286 KPNQwest Backbone AS
10.29.245.22/32 286 KPNQwest Backbone AS
10.29.245.25/32 286 KPNQwest Backbone AS
10.29.245.26/32 286 KPNQwest Backbone AS
Complete listing at http://thyme.rand.apnic.net/rviews/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
41.222.79.0/24 37345 MEDALLION Communications
41.223.92.0/22 36936 >>UNKNOWN<<
Complete listing at http://thyme.rand.apnic.net/rviews/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 /8:20 /9:12 /10:27 /11:81 /12:234
/13:463 /14:822 /15:1489 /16:12260 /17:6407 /18:10558
/19:20747 /20:29180 /21:28925 /22:39305 /23:36959 /24:205783
/25:67 /26:82 /27:109 /28:298 /29:112 /30:534
/31:52 /32:490
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 2860 3249 Windstream Communications Inc
6389 2115 3455 bellsouth.net, inc.
18566 2042 2093 Covad Communications
8402 1638 1659 Corbina telecom
10620 1633 1738 TVCABLE BOGOTA
30036 1448 1489 Mediacom Communications Corp
11492 1115 1152 Cable One
1785 1066 1866 AppliedTheory Corporation
15557 1046 1096 LDCOM NETWORKS
7011 1042 1159 Citizens Utilities
Complete listing at http://thyme.rand.apnic.net/rviews/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:496 2:473 4:19 5:1 6:3 8:371
12:1949 13:1 14:585 15:11 16:3 17:6
20:9 23:102 24:1715 27:1178 31:861 32:124
33:2 34:2 36:8 37:87 38:798 39:1
40:114 41:2910 42:87 43:1 44:3 46:1221
47:3 49:320 50:515 52:13 55:7 56:2
57:51 58:952 59:491 60:346 61:1192 62:962
63:1981 64:4136 65:2313 66:4406 67:2028 68:1341
69:3261 70:966 71:428 72:1836 73:1 74:2703
75:459 76:327 77:953 78:894 79:522 80:1192
81:870 82:565 83:533 84:589 85:1158 86:750
87:918 88:352 89:1622 90:266 91:4430 92:535
93:1546 94:1356 95:1070 96:398 97:296 98:804
99:38 100:18 101:252 103:649 106:10 107:133
108:131 109:1430 110:703 111:841 112:429 113:539
114:621 115:768 116:902 117:740 118:924 119:1264
120:358 121:699 122:1627 123:1056 124:1368 125:1356
128:531 129:195 130:203 131:588 132:162 133:21
134:233 135:59 136:213 137:151 138:288 139:157
140:491 141:258 142:380 143:392 144:504 145:68
146:485 147:234 148:688 149:279 150:166 151:193
152:447 153:170 154:7 155:409 156:210 157:368
158:155 159:511 160:320 161:221 162:337 163:187
164:529 165:412 166:562 167:456 168:854 169:148
170:830 171:105 172:4 173:1797 174:596 175:444
176:343 177:453 178:1188 180:1247 181:43 182:705
183:267 184:432 185:1 186:1496 187:830 188:1039
189:1162 190:5352 192:6017 193:5485 194:3985 195:3369
196:1294 197:168 198:3637 199:4313 200:5655 201:1706
202:8510 203:8616 204:4359 205:2430 206:2765 207:2813
208:4044 209:3577 210:2773 211:1489 212:2021 213:1832
214:836 215:94 216:4971 217:1486 218:564 219:339
220:1253 221:557 222:326 223:267
End of report
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