The Border Gateway Protocol (BGP) is the protocol backing the core routing decisions on the Internet. It maintains a table of IP networks or 'prefixes' which designate network reachability among autonomous systems (AS). It is described as a path vector protocol. BGP does not use traditional Interior Gateway Protocol (IGP) metrics, but makes routing decisions based on path, network policies and/or rulesets. For this reason, it is more appropriately termed a reachability protocol rather than routing protocol.

Thursday, November 21, 2013

[bgp-stats] Routing Table Report - Hong Kong view

* BGP Routing Table Analysis Reports *
Routing Table Report 06:00 +10GMT Fri 22 Nov, 2013

Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/hk/

Analysis Summary
----------------

BGP routing table entries examined: 468850
Prefixes after maximum aggregation: 188366
Deaggregation factor: 2.49
Unique aggregates announced to Internet: 234394
Total ASes present in the Internet Routing Table: 45420
Prefixes per ASN: 10.32
Origin-only ASes present in the Internet Routing Table: 35401
Origin ASes announcing only one prefix: 16317
Transit ASes present in the Internet Routing Table: 5847
Transit-only ASes present in the Internet Routing Table: 152
Average AS path length visible in the Internet Routing Table: 4.5
Max AS path length visible: 37
Max AS path prepend of ASN ( 55644) 31
Prefixes from unregistered ASNs in the Routing Table: 1002
Unregistered ASNs in the Routing Table: 290
Number of 32-bit ASNs allocated by the RIRs: 5378
Number of 32-bit ASNs visible in the Routing Table: 4172
Prefixes from 32-bit ASNs in the Routing Table: 13099
Special use prefixes present in the Routing Table: 2
Prefixes being announced from unallocated address space: 1138
Number of addresses announced to Internet: 2652441344
Equivalent to 158 /8s, 25 /16s and 11 /24s
Percentage of available address space announced: 71.6
Percentage of allocated address space announced: 71.6
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 95.3
Total number of prefixes smaller than registry allocations: 162077

APNIC Region Analysis Summary
-----------------------------

Prefixes being announced by APNIC Region ASes: 109874
Total APNIC prefixes after maximum aggregation: 33366
APNIC Deaggregation factor: 3.29
Prefixes being announced from the APNIC address blocks: 112115
Unique aggregates announced from the APNIC address blocks: 47713
APNIC Region origin ASes present in the Internet Routing Table: 4855
APNIC Prefixes per ASN: 23.09
APNIC Region origin ASes announcing only one prefix: 1244
APNIC Region transit ASes present in the Internet Routing Table: 818
Average APNIC Region AS path length visible: 4.3
Max APNIC Region AS path length visible: 37
Number of APNIC region 32-bit ASNs visible in the Routing Table: 752
Number of APNIC addresses announced to Internet: 727596032
Equivalent to 43 /8s, 94 /16s and 60 /24s
Percentage of available APNIC address space announced: 85.0

APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079, 55296-56319,
58368-59391, 63488-63999, 131072-133631
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, 150/8, 153/8,
163/8, 171/8, 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: 162381
Total ARIN prefixes after maximum aggregation: 81451
ARIN Deaggregation factor: 1.99
Prefixes being announced from the ARIN address blocks: 163283
Unique aggregates announced from the ARIN address blocks: 75952
ARIN Region origin ASes present in the Internet Routing Table: 15908
ARIN Prefixes per ASN: 10.26
ARIN Region origin ASes announcing only one prefix: 6009
ARIN Region transit ASes present in the Internet Routing Table: 1623
Average ARIN Region AS path length visible: 4.4
Max ARIN Region AS path length visible: 20
Number of ARIN region 32-bit ASNs visible in the Routing Table: 38
Number of ARIN addresses announced to Internet: 1073231104
Equivalent to 63 /8s, 248 /16s and 53 /24s
Percentage of available ARIN address space announced: 56.8

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, 62464-63487, 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, 128/8,
129/8, 130/8, 131/8, 132/8, 134/8, 135/8, 136/8,
137/8, 138/8, 139/8, 140/8, 142/8, 143/8, 144/8,
146/8, 147/8, 148/8, 149/8, 152/8, 155/8, 156/8,
157/8, 158/8, 159/8, 160/8, 161/8, 162/8, 164/8,
165/8, 166/8, 167/8, 168/8, 169/8, 170/8, 172/8,
173/8, 174/8, 184/8, 192/8, 198/8, 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: 118863
Total RIPE prefixes after maximum aggregation: 60927
RIPE Deaggregation factor: 1.95
Prefixes being announced from the RIPE address blocks: 122620
Unique aggregates announced from the RIPE address blocks: 78722
RIPE Region origin ASes present in the Internet Routing Table: 17500
RIPE Prefixes per ASN: 7.01
RIPE Region origin ASes announcing only one prefix: 8295
RIPE Region transit ASes present in the Internet Routing Table: 2803
Average RIPE Region AS path length visible: 4.8
Max RIPE Region AS path length visible: 27
Number of RIPE region 32-bit ASNs visible in the Routing Table: 2480
Number of RIPE addresses announced to Internet: 656167424
Equivalent to 39 /8s, 28 /16s and 82 /24s
Percentage of available RIPE address space announced: 95.4

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
59392-61439, 61952-62463, 196608-200191
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,
141/8, 145/8, 151/8, 176/8, 178/8, 185/8, 188/8,
193/8, 194/8, 195/8, 212/8, 213/8, 217/8,

LACNIC Region Analysis Summary
------------------------------

Prefixes being announced by LACNIC Region ASes: 52762
Total LACNIC prefixes after maximum aggregation: 9864
LACNIC Deaggregation factor: 5.35
Prefixes being announced from the LACNIC address blocks: 57909
Unique aggregates announced from the LACNIC address blocks: 27030
LACNIC Region origin ASes present in the Internet Routing Table: 2038
LACNIC Prefixes per ASN: 28.41
LACNIC Region origin ASes announcing only one prefix: 563
LACNIC Region transit ASes present in the Internet Routing Table: 391
Average LACNIC Region AS path length visible: 4.8
Max LACNIC Region AS path length visible: 22
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 896
Number of LACNIC addresses announced to Internet: 143510528
Equivalent to 8 /8s, 141 /16s and 204 /24s
Percentage of available LACNIC address space announced: 85.5

LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247,
61440-61951, 262144-263679 plus ERX transfers
LACNIC Address Blocks 177/8, 179/8, 181/8, 186/8, 187/8, 189/8, 190/8,
191/8, 200/8, 201/8,

AfriNIC Region Analysis Summary
-------------------------------

Prefixes being announced by AfriNIC Region ASes: 11155
Total AfriNIC prefixes after maximum aggregation: 2596
AfriNIC Deaggregation factor: 4.30
Prefixes being announced from the AfriNIC address blocks: 11784
Unique aggregates announced from the AfriNIC address blocks: 4061
AfriNIC Region origin ASes present in the Internet Routing Table: 685
AfriNIC Prefixes per ASN: 17.20
AfriNIC Region origin ASes announcing only one prefix: 206
AfriNIC Region transit ASes present in the Internet Routing Table: 137
Average AfriNIC Region AS path length visible: 4.7
Max AfriNIC Region AS path length visible: 24
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 6
Number of AfriNIC addresses announced to Internet: 48024320
Equivalent to 2 /8s, 220 /16s and 203 /24s
Percentage of available AfriNIC address space announced: 47.7

AfriNIC AS Blocks 36864-37887, 327680-328703 & ERX transfers
AfriNIC Address Blocks 41/8, 102/8, 105/8, 154/8, 196/8, 197/8,

APNIC Region per AS prefix count summary
----------------------------------------

ASN No of nets /20 equiv MaxAgg Description
17974 2714 902 88 PT TELEKOMUNIKASI INDONESIA
4766 2139 11550 641 Korea Telecom (KIX)
7545 2099 319 110 TPG Internet Pty Ltd
4755 1792 392 190 TATA Communications formerly
9829 1544 1245 45 BSNL National Internet Backbo
4808 1275 2188 367 CNCGROUP IP network: China169
9583 1246 95 509 Sify Limited
9498 1210 309 73 BHARTI Airtel Ltd.
7552 1165 1080 13 Vietel Corporation
24560 1095 380 166 Bharti Airtel Ltd., Telemedia

Complete listing at http://thyme.rand.apnic.net/hk/data-ASnet-APNIC

ARIN Region per AS prefix count summary
---------------------------------------

ASN No of nets /20 equiv MaxAgg Description
6389 3043 3688 53 BellSouth.net Inc.
22773 2206 2941 141 Cox Communications, Inc.
18566 2054 379 178 MegaPath Corporation
1785 2048 685 140 PaeTec Communications, Inc.
20115 1681 1655 598 Charter Communications
4323 1650 1098 419 Time Warner Telecom
701 1509 11163 786 MCI Communications Services,
30036 1387 313 582 Mediacom Communications Corp
7018 1344 17795 882 AT&T WorldNet Services
6983 1297 758 582 ITC^Deltacom

Complete listing at http://thyme.rand.apnic.net/hk/data-ASnet-ARIN

RIPE Region per AS prefix count summary
---------------------------------------

ASN No of nets /20 equiv MaxAgg Description
8402 1917 544 16 OJSC "Vimpelcom"
34984 1367 244 223 TELLCOM ILETISIM HIZMETLERI A
20940 1152 429 880 Akamai Technologies European
31148 1009 45 19 FreeNet ISP
13188 894 99 48 TOV "Bank-Inform"
6849 869 363 39 JSC UKRTELECOM,
8551 786 370 41 Bezeq International
6830 777 2328 429 UPC Distribution Services
12479 679 797 57 Uni2 Autonomous System
35228 546 246 16 Avatar Broadband Limited

Complete listing at http://thyme.rand.apnic.net/hk/data-ASnet-RIPE

LACNIC Region per AS prefix count summary
-----------------------------------------

ASN No of nets /20 equiv MaxAgg Description
28573 3391 1792 89 NET Servicos de Comunicao S.A
10620 2666 432 219 Telmex Colombia S.A.
7303 1729 1151 232 Telecom Argentina Stet-France
18881 1646 908 20 Global Village Telecom
8151 1351 2850 418 UniNet S.A. de C.V.
11830 866 364 15 Instituto Costarricense de El
6147 815 373 27 Telefonica Del Peru
27947 813 93 89 Telconet S.A
6503 791 434 62 AVANTEL, S.A.
7738 780 1498 36 Telecomunicacoes da Bahia S.A

Complete listing at http://thyme.rand.apnic.net/hk/data-ASnet-LACNIC

AfriNIC Region per AS prefix count summary
------------------------------------------

ASN No of nets /20 equiv MaxAgg Description
36998 1284 112 5 Sudanese Mobile Telephone (ZA
24863 888 338 26 LINKdotNET AS number
6713 554 633 26 Itissalat Al-MAGHRIB
8452 410 956 9 TEDATA
24835 297 144 9 RAYA Telecom - Egypt
3741 256 921 214 The Internet Solution
29571 224 17 12 Ci Telecom Autonomous system
15706 221 32 6 Sudatel Internet Exchange Aut
36992 219 501 29 Etisalat MISR
29975 192 668 21 Vodacom

Complete listing at http://thyme.rand.apnic.net/hk/data-ASnet-AFRINIC

Global Per AS prefix count summary
----------------------------------

ASN No of nets /20 equiv MaxAgg Description
28573 3391 1792 89 NET Servicos de Comunicao S.A
6389 3043 3688 53 BellSouth.net Inc.
17974 2714 902 88 PT TELEKOMUNIKASI INDONESIA
10620 2666 432 219 Telmex Colombia S.A.
22773 2206 2941 141 Cox Communications, Inc.
4766 2139 11550 641 Korea Telecom (KIX)
7545 2099 319 110 TPG Internet Pty Ltd
18566 2054 379 178 MegaPath Corporation
1785 2048 685 140 PaeTec Communications, Inc.
8402 1917 544 16 OJSC "Vimpelcom"

Complete listing at http://thyme.rand.apnic.net/hk/data-ASnet

Global Per AS Maximum Aggr summary
----------------------------------

ASN No of nets Net Savings Description
6389 3043 2990 BellSouth.net Inc.
17974 2714 2626 PT TELEKOMUNIKASI INDONESIA
10620 2666 2447 Telmex Colombia S.A.
22773 2206 2065 Cox Communications, Inc.
7545 2099 1989 TPG Internet Pty Ltd
1785 2048 1908 PaeTec Communications, Inc.
8402 1917 1901 OJSC "Vimpelcom"
18566 2054 1876 MegaPath Corporation
18881 1646 1626 Global Village Telecom
4755 1792 1602 TATA Communications formerly

Complete listing at http://thyme.rand.apnic.net/hk/data-CIDRnet

List of Unregistered Origin ASNs (Global)
-----------------------------------------

Bad AS Designation Network Transit AS Description
65010 PRIVATE 1.38.8.0/24 38266 Hutchison Essar Ltd.
65010 PRIVATE 1.38.9.0/24 38266 Hutchison Essar Ltd.
65010 PRIVATE 1.38.11.0/24 38266 Hutchison Essar Ltd.
65010 PRIVATE 1.38.32.0/19 38266 Hutchison Essar Ltd.
65010 PRIVATE 1.38.160.0/19 38266 Hutchison Essar Ltd.
65010 PRIVATE 1.38.192.0/20 38266 Hutchison Essar Ltd.
65010 PRIVATE 1.38.224.0/20 38266 Hutchison Essar Ltd.
65010 PRIVATE 1.38.240.0/21 38266 Hutchison Essar Ltd.
65514 PRIVATE 5.102.224.0/19 47956 XFONE COMMUNICATION
62828 UNALLOCATED 8.21.130.0/24 3356 Level 3 Communicatio

Complete listing at http://thyme.rand.apnic.net/hk/data-badAS

Prefixes from private and non-routed address space (Global)
-----------------------------------------------------------

Prefix Origin AS Description
0.0.0.0/0 4641 The Chinese University of Hon
100.100.0.0/24 4847 China Networks Inter-Exchange

Complete listing at http://thyme.rand.apnic.net/hk/data-dsua

Advertised Unallocated Addresses
--------------------------------

Network Origin AS Description
23.90.128.0/18 27418 OUTOFWALL INC.
23.91.0.0/19 40676 Psychz Networks
23.91.21.0/24 40676 Psychz Networks
23.91.32.0/19 36315 Servpac Inc.
23.91.80.0/20 21560 Capital Technology Services G
23.91.96.0/20 37958 ChinaCache Networks ASN
23.91.112.0/21 32475 MidPhase Inc.
23.91.160.0/19 36493 3757277 Canada Inc. (oa 295.c
23.91.160.0/22 36493 3757277 Canada Inc. (oa 295.c
23.91.164.0/22 36493 3757277 Canada Inc. (oa 295.c

Complete listing at http://thyme.rand.apnic.net/hk/data-add-IANA

Number of prefixes announced per prefix length (Global)
-------------------------------------------------------

!!Default route being announced!!

/1:0 /2:0 /3:0 /4:0 /5:0 /6:0
/7:0 /8:16 /9:11 /10:31 /11:92 /12:253
/13:474 /14:917 /15:1619 /16:12778 /17:6730 /18:11186
/19:23046 /20:32871 /21:35576 /22:49883 /23:43699 /24:249636
/25:3 /26:5 /27:9 /28:7 /29:6 /30:0
/31:0 /32:1

Advertised prefixes smaller than registry allocations
-----------------------------------------------------

ASN No of nets Total ann. Description
18566 2008 2054 MegaPath Corporation
6389 1701 3043 BellSouth.net Inc.
8402 1590 1917 OJSC "Vimpelcom"
22773 1461 2206 Cox Communications, Inc.
36998 1277 1284 Sudanese Mobile Telephone (ZA
30036 1230 1387 Mediacom Communications Corp
11492 1195 1233 Cable One
1785 1090 2048 PaeTec Communications, Inc.
6983 1036 1297 ITC^Deltacom
22561 964 1241 Digital Teleport, Inc

Complete listing at http://thyme.rand.apnic.net/hk/data-sXXas-nos

Number of /24s announced per /8 block (Global)
----------------------------------------------

1:899 2:839 3:3 4:17 5:1027 6:21
8:622 12:1879 13:3 14:887 15:11 16:3
17:18 18:19 20:21 23:573 24:1757 27:1620
31:1514 32:45 33:2 34:5 36:86 37:1939
38:915 39:5 40:182 41:2748 42:296 44:14
46:2024 47:10 49:695 50:841 52:12 54:44
55:7 56:4 57:26 58:1093 59:574 60:368
61:1475 62:1247 63:1985 64:4330 65:2344 66:4160
67:2112 68:1097 69:3281 70:885 71:488 72:2010
74:2572 75:325 76:292 77:1156 78:1063 79:661
80:1273 81:1058 82:648 83:675 84:589 85:1250
86:371 87:1020 88:557 89:1556 90:152 91:5680
92:612 93:1612 94:2069 95:1558 96:514 97:348
98:1037 99:41 100:32 101:652 103:3664 105:524
106:141 107:216 108:534 109:1976 110:976 111:1113
112:595 113:811 114:760 115:1060 116:997 117:830
118:1201 119:1261 120:339 121:753 122:1832 123:1262
124:1407 125:1430 128:669 129:230 130:351 131:663
132:360 133:158 134:429 135:72 136:284 137:249
138:351 139:298 140:200 141:331 142:546 143:414
144:494 145:90 146:532 147:407 148:776 149:369
150:153 151:649 152:411 153:205 154:53 155:499
156:296 157:421 158:282 159:694 160:360 161:455
162:868 163:227 164:617 165:591 166:262 167:633
168:1045 169:125 170:1120 171:185 172:27 173:1588
174:694 175:524 176:1320 177:2450 178:1867 179:289
180:1589 181:878 182:1377 183:453 184:630 185:1054
186:2628 187:1458 188:1861 189:1257 190:7322 192:7069
193:5428 194:4022 195:3360 196:1328 197:1040 198:4748
199:5479 200:6039 201:2525 202:8946 203:8897 204:4548
205:2638 206:2835 207:2837 208:3988 209:3656 210:2997
211:1567 212:2148 213:1976 214:901 215:91 216:5417
217:1694 218:623 219:321 220:1274 221:584 222:328
223:505

End of report
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