Routing Table Report 08:00 +10GMT Thu 05 Apr, 2012
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 397365
Prefixes after maximum aggregation: 169827
Deaggregation factor: 2.34
Unique aggregates announced to Internet: 196014
Total ASes present in the Internet Routing Table: 38272
Prefixes per ASN: 10.38
Origin-only ASes present in the Internet Routing Table: 32989
Origin ASes announcing only one prefix: 15516
Transit ASes present in the Internet Routing Table: 5283
Transit-only ASes present in the Internet Routing Table: 124
Average AS path length visible in the Internet Routing Table: 3.6
Max AS path length visible: 40
Max AS path prepend of ASN (22394) 35
Prefixes from unregistered ASNs in the Routing Table: 1388
Unregistered ASNs in the Routing Table: 373
Number of 32-bit ASNs allocated by the RIRs: 2344
Number of 32-bit ASNs visible in the Routing Table: 0
Prefixes from 32-bit ASNs in the Routing Table: 5340
Special use prefixes present in the Routing Table: 8
Prefixes being announced from unallocated address space: 1358
Number of addresses announced to Internet: 2549496064
Equivalent to 151 /8s, 246 /16s and 57 /24s
Percentage of available address space announced: 68.8
Percentage of allocated address space announced: 68.8
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 92.1
Total number of prefixes smaller than registry allocations: 167215
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 93353
Total APNIC prefixes after maximum aggregation: 30774
APNIC Deaggregation factor: 3.03
Prefixes being announced from the APNIC address blocks: 90754
Unique aggregates announced from the APNIC address blocks: 39310
APNIC Region origin ASes present in the Internet Routing Table: 4635
APNIC Prefixes per ASN: 19.58
APNIC Region origin ASes announcing only one prefix: 1268
APNIC Region transit ASes present in the Internet Routing Table: 708
Average APNIC Region AS path length visible: 4.0
Max APNIC Region AS path length visible: 16
Number of APNIC region 32-bit ASNs visible in the Routing Table: 0
Number of APNIC addresses announced to Internet: 642025216
Equivalent to 38 /8s, 68 /16s and 135 /24s
Percentage of available APNIC address space announced: 81.4
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: 148104
Total ARIN prefixes after maximum aggregation: 75334
ARIN Deaggregation factor: 1.97
Prefixes being announced from the ARIN address blocks: 119724
Unique aggregates announced from the ARIN address blocks: 49940
ARIN Region origin ASes present in the Internet Routing Table: 14885
ARIN Prefixes per ASN: 8.04
ARIN Region origin ASes announcing only one prefix: 5687
ARIN Region transit ASes present in the Internet Routing Table: 1503
Average ARIN Region AS path length visible: 3.3
Max ARIN Region AS path length visible: 40
Number of ARIN region 32-bit ASNs visible in the Routing Table: 0
Number of ARIN addresses announced to Internet: 805397248
Equivalent to 48 /8s, 1 /16s and 99 /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: 101285
Total RIPE prefixes after maximum aggregation: 53234
RIPE Deaggregation factor: 1.90
Prefixes being announced from the RIPE address blocks: 92561
Unique aggregates announced from the RIPE address blocks: 57270
RIPE Region origin ASes present in the Internet Routing Table: 16346
RIPE Prefixes per ASN: 5.66
RIPE Region origin ASes announcing only one prefix: 7963
RIPE Region transit ASes present in the Internet Routing Table: 2596
Average RIPE Region AS path length visible: 3.5
Max RIPE Region AS path length visible: 24
Number of RIPE region 32-bit ASNs visible in the Routing Table: 0
Number of RIPE addresses announced to Internet: 501956608
Equivalent to 29 /8s, 235 /16s and 64 /24s
Percentage of available RIPE address space announced: 80.9
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: 39341
Total LACNIC prefixes after maximum aggregation: 8096
LACNIC Deaggregation factor: 4.86
Prefixes being announced from the LACNIC address blocks: 39125
Unique aggregates announced from the LACNIC address blocks: 19782
LACNIC Region origin ASes present in the Internet Routing Table: 1557
LACNIC Prefixes per ASN: 25.13
LACNIC Region origin ASes announcing only one prefix: 434
LACNIC Region transit ASes present in the Internet Routing Table: 286
Average LACNIC Region AS path length visible: 4.0
Max LACNIC Region AS path length visible: 17
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 0
Number of LACNIC addresses announced to Internet: 98741504
Equivalent to 5 /8s, 226 /16s and 173 /24s
Percentage of available LACNIC address space announced: 65.4
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: 8889
Total AfriNIC prefixes after maximum aggregation: 2120
AfriNIC Deaggregation factor: 4.19
Prefixes being announced from the AfriNIC address blocks: 6962
Unique aggregates announced from the AfriNIC address blocks: 2154
AfriNIC Region origin ASes present in the Internet Routing Table: 524
AfriNIC Prefixes per ASN: 13.29
AfriNIC Region origin ASes announcing only one prefix: 164
AfriNIC Region transit ASes present in the Internet Routing Table: 114
Average AfriNIC Region AS path length visible: 3.5
Max AfriNIC Region AS path length visible: 24
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 0
Number of AfriNIC addresses announced to Internet: 31511552
Equivalent to 1 /8s, 224 /16s and 212 /24s
Percentage of available AfriNIC address space announced: 47.0
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 1931 11106 680 Korea Telecom (KIX)
17974 1700 503 63 PT Telekomunikasi Indonesia
7545 1654 301 88 TPG Internet Pty Ltd
4755 1555 385 156 TATA Communications formerly
9583 1234 94 539 Sify Limited
9829 1234 1041 30 National Internet Backbone
7552 1101 1062 11 Vietel Corporation
24560 1020 385 168 Bharti Airtel Ltd., Telemedia
4808 987 1947 284 CNCGROUP IP network China169
18101 948 131 159 Reliance Infocom Ltd Internet
Complete listing at http://thyme.rand.apnic.net/london/data-ASnet-APNIC
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6389 3433 3807 197 BellSouth.net Inc.
7029 3417 1016 169 Windstream Communications Inc
18566 2093 383 179 Covad Communications Co.
1785 1893 680 128 PaeTec Communications, Inc.
20115 1636 1561 619 Charter Communications
4323 1595 1075 381 tw telecom holdings, inc.
22773 1564 2910 111 Cox Communications Inc.
30036 1455 264 740 Mediacom Communications Corp
7018 1287 9807 837 AT&T Services, Inc.
11492 1184 216 364 CABLE ONE, INC.
Complete listing at http://thyme.rand.apnic.net/london/data-ASnet-ARIN
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8402 1663 544 16 Corbina telecom
2118 1394 97 14 EUnet/RELCOM Autonomous Syste
31148 678 37 9 FreeNet ISP
34984 675 188 172 BILISIM TELEKOM
12479 652 658 57 France Telecom Espana SA
6830 641 1943 412 UPC Broadband
20940 635 205 499 Akamai Technologies European
9116 541 326 32 Goldenlines main autonomous s
3320 532 8442 398 Deutsche Telekom AG
8551 505 360 81 Bezeq International
Complete listing at http://thyme.rand.apnic.net/london/data-ASnet-RIPE
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
10620 1795 327 163 Types of queries are: POCs, o
28573 1748 1105 61 Types of queries are: POCs, o
6503 1490 418 65 Axtel, S.A.B. de C.V.
7303 1353 827 189 Telecom Argentina S.A.
8151 1347 2999 342 Uninet S.A. de C.V.
27947 665 74 100 Telconet S.A
26615 642 685 30 Tim Celular S.A.
11172 638 107 74 Alestra, S. de R.L. de C.V.
22047 584 326 15 Types of queries are: POCs, o
3816 572 242 100 Types of queries are: POCs, o
Complete listing at http://thyme.rand.apnic.net/london/data-ASnet-LACNIC
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8452 1294 958 13 TEDATA
24863 846 274 32 LINKdotNET AS number
6713 493 649 18 Itissalat Al-MAGHRIB
3741 272 924 229 The Internet Solution
12258 197 28 62 Vodacom Internet Company
33776 195 12 21 Starcomms Nigeria Limited
24835 178 80 8 RAYA Telecom - Egypt
15706 168 32 6 Sudatel Internet Exchange Aut
16637 161 664 84 MTN Network Solutions
29571 159 15 16 Ci Telecom Autonomous system
Complete listing at http://thyme.rand.apnic.net/london/data-ASnet-AFRINIC
Global Per AS prefix count summary
----------------------------------
ASN No of nets /20 equiv MaxAgg Description
6389 3433 3807 197 BellSouth.net Inc.
7029 3417 1016 169 Windstream Communications Inc
18566 2093 383 179 Covad Communications Co.
4766 1931 11106 680 Korea Telecom (KIX)
1785 1893 680 128 PaeTec Communications, Inc.
10620 1795 327 163 Types of queries are: POCs, o
28573 1748 1105 61 Types of queries are: POCs, o
17974 1700 503 63 PT Telekomunikasi Indonesia
8402 1663 544 16 Corbina telecom
7545 1654 301 88 TPG Internet Pty Ltd
Complete listing at http://thyme.rand.apnic.net/london/data-ASnet
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
7029 3417 3248 Windstream Communications Inc
18566 2093 1914 Covad Communications Co.
1785 1893 1765 PaeTec Communications, Inc.
28573 1748 1687 Types of queries are: POCs, o
8402 1663 1647 Corbina telecom
17974 1700 1637 PT Telekomunikasi Indonesia
10620 1795 1632 Types of queries are: POCs, o
7545 1654 1566 TPG Internet Pty Ltd
22773 1564 1453 Cox Communications Inc.
6503 1490 1425 Axtel, S.A.B. de C.V.
Complete listing at http://thyme.rand.apnic.net/london/data-CIDRnet
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
54439 UNALLOCATED 8.25.174.0/24 3356 Level 3 Communicatio
54470 UNALLOCATED 8.30.171.0/24 3356 Level 3 Communicatio
65333 PRIVATE 10.0.0.0/8 0 *
32805 UNALLOCATED 12.1.225.0/24 7018 AT&T Services, Inc.
15132 UNALLOCATED 12.9.150.0/24 7018 AT&T Services, Inc.
32567 UNALLOCATED 12.14.170.0/24 7018 AT&T Services, Inc.
16504 UNALLOCATED 12.18.155.0/24 30170 Optic Fusion
32567 UNALLOCATED 12.25.107.0/24 4323 tw telecom holdings,
30031 UNALLOCATED 12.27.122.0/24 7018 AT&T Services, Inc.
26095 UNALLOCATED 12.34.8.0/24 7018 AT&T Services, Inc.
Complete listing at http://thyme.rand.apnic.net/london/data-badAS
Prefixes from private and non-routed address space (Global)
-----------------------------------------------------------
Prefix Origin AS Description
10.0.0.0/8 65333 Internet Assigned Numbers Aut
128.0.0.0/21 12654 RIPE NCC RIS Project
128.0.24.0/24 12654 RIPE NCC RIS Project
169.254.0.0/16 65333 Internet Assigned Numbers Aut
172.16.0.0/12 65333 Internet Assigned Numbers Aut
192.0.2.0/24 65333 Internet Assigned Numbers Aut
192.168.0.0/16 0 *
198.18.0.0/15 65333 Internet Assigned Numbers Aut
Complete listing at http://thyme.rand.apnic.net/london/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
23.27.0.0/20 54500 EGIHosting
23.27.16.0/20 54500 EGIHosting
Complete listing at http://thyme.rand.apnic.net/london/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 /10:28 /11:81 /12:235
/13:457 /14:830 /15:1482 /16:12124 /17:6255 /18:10405
/19:20599 /20:28637 /21:29476 /22:39888 /23:37232 /24:209062
/25:10 /26:20 /27:19 /28:150 /29:142 /30:67
/31:0 /32:134
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 3059 3417 Windstream Communications Inc
6389 2149 3433 BellSouth.net Inc.
18566 2042 2093 Covad Communications Co.
10620 1690 1795 Types of queries are: POCs, o
8402 1640 1663 Corbina telecom
30036 1396 1455 Mediacom Communications Corp
6503 1254 1490 Axtel, S.A.B. de C.V.
11492 1147 1184 CABLE ONE, INC.
8452 1103 1294 TEDATA
1785 1067 1893 PaeTec Communications, Inc.
Complete listing at http://thyme.rand.apnic.net/london/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:529 2:666 4:14 6:3 8:395 12:1992
13:1 14:600 15:12 16:3 17:7 20:8
23:159 24:1762 27:1262 31:986 32:53 33:2
34:2 36:8 37:321 38:782 40:120 41:3088
42:129 44:3 46:1464 47:3 49:342 50:536
52:13 54:7 55:9 56:3 57:28 58:914
59:487 60:277 61:1093 62:975 63:1991 64:4144
65:2260 66:4484 67:2025 68:1150 69:3173 70:908
71:466 72:1818 74:2591 75:492 76:314 77:962
78:1008 79:494 80:1211 81:899 82:668 83:548
84:525 85:1182 86:413 87:911 88:345 89:1631
90:296 91:4676 92:518 93:1377 94:1477 95:1147
96:373 97:318 98:878 99:37 100:6 101:163
103:922 106:73 107:180 108:208 109:1268 110:739
111:906 112:429 113:576 114:622 115:787 116:889
117:703 118:903 119:1181 120:331 121:673 122:1627
123:1099 124:1300 125:1253 128:525 129:185 130:251
131:591 132:165 133:21 134:233 135:62 136:211
137:174 138:353 139:144 140:467 141:243 142:368
143:394 144:512 145:66 146:478 147:241 148:743
149:297 150:148 151:176 152:460 153:172 154:6
155:445 156:213 157:328 158:175 159:451 160:341
161:230 162:344 163:179 164:567 165:363 166:561
167:464 168:812 169:126 170:844 171:126 172:4
173:1726 174:571 175:420 176:458 177:647 178:1314
180:1190 181:73 182:759 183:284 184:448 185:1
186:1905 187:1023 188:1183 189:1768 190:5418 192:5959
193:5607 194:4615 195:3594 196:1261 197:125 198:3570
199:4440 200:5696 201:1894 202:8218 203:8490 204:4268
205:2457 206:2658 207:2721 208:4055 209:3561 210:2682
211:1444 212:1999 213:1908 214:882 215:108 216:5053
217:1523 218:526 219:319 220:1227 221:536 222:298
223:315
End of report
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