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.

Sunday, November 17, 2013

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

* BGP Routing Table Analysis Reports *
Routing Table Report 06:00 +10GMT Mon 18 Nov, 2013

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

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

BGP routing table entries examined: 468888
Prefixes after maximum aggregation: 188097
Deaggregation factor: 2.49
Unique aggregates announced to Internet: 234414
Total ASes present in the Internet Routing Table: 45372
Prefixes per ASN: 10.33
Origin-only ASes present in the Internet Routing Table: 35375
Origin ASes announcing only one prefix: 16307
Transit ASes present in the Internet Routing Table: 5847
Transit-only ASes present in the Internet Routing Table: 154
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: 997
Unregistered ASNs in the Routing Table: 295
Number of 32-bit ASNs allocated by the RIRs: 5363
Number of 32-bit ASNs visible in the Routing Table: 4150
Prefixes from 32-bit ASNs in the Routing Table: 12906
Special use prefixes present in the Routing Table: 1
Prefixes being announced from unallocated address space: 1085
Number of addresses announced to Internet: 2648364544
Equivalent to 157 /8s, 218 /16s and 214 /24s
Percentage of available address space announced: 71.5
Percentage of allocated address space announced: 71.5
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 95.2
Total number of prefixes smaller than registry allocations: 162723

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

Prefixes being announced by APNIC Region ASes: 109390
Total APNIC prefixes after maximum aggregation: 33186
APNIC Deaggregation factor: 3.30
Prefixes being announced from the APNIC address blocks: 111573
Unique aggregates announced from the APNIC address blocks: 47710
APNIC Region origin ASes present in the Internet Routing Table: 4846
APNIC Prefixes per ASN: 23.02
APNIC Region origin ASes announcing only one prefix: 1238
APNIC Region transit ASes present in the Internet Routing Table: 813
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: 742
Number of APNIC addresses announced to Internet: 723691008
Equivalent to 43 /8s, 34 /16s and 166 /24s
Percentage of available APNIC address space announced: 84.6

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: 162360
Total ARIN prefixes after maximum aggregation: 81378
ARIN Deaggregation factor: 2.00
Prefixes being announced from the ARIN address blocks: 163283
Unique aggregates announced from the ARIN address blocks: 75985
ARIN Region origin ASes present in the Internet Routing Table: 15893
ARIN Prefixes per ASN: 10.27
ARIN Region origin ASes announcing only one prefix: 6007
ARIN Region transit ASes present in the Internet Routing Table: 1615
Average ARIN Region AS path length visible: 4.4
Max ARIN Region AS path length visible: 19
Number of ARIN region 32-bit ASNs visible in the Routing Table: 37
Number of ARIN addresses announced to Internet: 1072976640
Equivalent to 63 /8s, 244 /16s and 83 /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: 119003
Total RIPE prefixes after maximum aggregation: 60907
RIPE Deaggregation factor: 1.95
Prefixes being announced from the RIPE address blocks: 122664
Unique aggregates announced from the RIPE address blocks: 78780
RIPE Region origin ASes present in the Internet Routing Table: 17502
RIPE Prefixes per ASN: 7.01
RIPE Region origin ASes announcing only one prefix: 8305
RIPE Region transit ASes present in the Internet Routing Table: 2810
Average RIPE Region AS path length visible: 4.8
Max RIPE Region AS path length visible: 30
Number of RIPE region 32-bit ASNs visible in the Routing Table: 2475
Number of RIPE addresses announced to Internet: 656623872
Equivalent to 39 /8s, 35 /16s and 73 /24s
Percentage of available RIPE address space announced: 95.5

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: 52778
Total LACNIC prefixes after maximum aggregation: 9869
LACNIC Deaggregation factor: 5.35
Prefixes being announced from the LACNIC address blocks: 57915
Unique aggregates announced from the LACNIC address blocks: 27028
LACNIC Region origin ASes present in the Internet Routing Table: 2041
LACNIC Prefixes per ASN: 28.38
LACNIC Region origin ASes announcing only one prefix: 558
LACNIC Region transit ASes present in the Internet Routing Table: 399
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: 890
Number of LACNIC addresses announced to Internet: 143159040
Equivalent to 8 /8s, 136 /16s and 111 /24s
Percentage of available LACNIC address space announced: 85.3

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: 11743
Total AfriNIC prefixes after maximum aggregation: 2602
AfriNIC Deaggregation factor: 4.51
Prefixes being announced from the AfriNIC address blocks: 12367
Unique aggregates announced from the AfriNIC address blocks: 4037
AfriNIC Region origin ASes present in the Internet Routing Table: 680
AfriNIC Prefixes per ASN: 18.19
AfriNIC Region origin ASes announcing only one prefix: 199
AfriNIC Region transit ASes present in the Internet Routing Table: 135
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: 48112384
Equivalent to 2 /8s, 222 /16s and 35 /24s
Percentage of available AfriNIC address space announced: 47.8

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 2713 902 88 PT TELEKOMUNIKASI INDONESIA
4766 2135 11550 644 Korea Telecom (KIX)
7545 2100 319 111 TPG Internet Pty Ltd
4755 1789 392 190 TATA Communications formerly
9829 1543 1245 45 BSNL National Internet Backbo
4808 1275 2188 367 CNCGROUP IP network: China169
9583 1246 95 509 Sify Limited
9498 1216 309 74 BHARTI Airtel Ltd.
7552 1165 1080 13 Vietel Corporation
24560 1096 380 163 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 3049 3688 54 BellSouth.net Inc.
22773 2199 2939 138 Cox Communications, Inc.
18566 2056 379 178 MegaPath Corporation
1785 2028 683 124 PaeTec Communications, Inc.
20115 1680 1654 606 Charter Communications
4323 1648 1098 418 Time Warner Telecom
701 1507 11147 785 MCI Communications Services,
30036 1378 310 583 Mediacom Communications Corp
7018 1341 17795 879 AT&T WorldNet Services
6983 1295 756 580 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 1928 544 17 OJSC "Vimpelcom"
34984 1376 245 229 TELLCOM ILETISIM HIZMETLERI A
20940 1138 420 868 Akamai Technologies European
31148 1005 45 19 FreeNet ISP
13188 894 99 48 TOV "Bank-Inform"
6849 861 356 30 JSC UKRTELECOM,
8551 786 370 41 Bezeq International
6830 778 2329 430 UPC Distribution Services
12479 680 798 55 Uni2 Autonomous System
35228 545 246 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 3414 1793 87 NET Servicos de Comunicao S.A
10620 2666 432 219 Telmex Colombia S.A.
7303 1728 1150 231 Telecom Argentina Stet-France
18881 1621 908 20 Global Village Telecom
8151 1354 2853 415 UniNet S.A. de C.V.
11830 866 364 15 Instituto Costarricense de El
27947 813 93 89 Telconet S.A
6147 812 373 27 Telefonica Del Peru
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 1864 112 5 Sudanese Mobile Telephone (ZA
24863 888 338 26 LINKdotNET AS number
6713 554 633 26 Itissalat Al-MAGHRIB
8452 413 956 9 TEDATA
24835 297 144 9 RAYA Telecom - Egypt
3741 256 921 214 The Internet Solution
36992 229 501 29 Etisalat MISR
29571 224 17 12 Ci Telecom Autonomous system
15706 221 32 6 Sudatel Internet Exchange Aut
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 3414 1793 87 NET Servicos de Comunicao S.A
6389 3049 3688 54 BellSouth.net Inc.
17974 2713 902 88 PT TELEKOMUNIKASI INDONESIA
10620 2666 432 219 Telmex Colombia S.A.
22773 2199 2939 138 Cox Communications, Inc.
4766 2135 11550 644 Korea Telecom (KIX)
7545 2100 319 111 TPG Internet Pty Ltd
18566 2056 379 178 MegaPath Corporation
1785 2028 683 124 PaeTec Communications, Inc.
8402 1928 544 17 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 3049 2995 BellSouth.net Inc.
17974 2713 2625 PT TELEKOMUNIKASI INDONESIA
10620 2666 2447 Telmex Colombia S.A.
22773 2199 2061 Cox Communications, Inc.
7545 2100 1989 TPG Internet Pty Ltd
8402 1928 1911 OJSC "Vimpelcom"
1785 2028 1904 PaeTec Communications, Inc.
18566 2056 1878 MegaPath Corporation
36998 1864 1859 Sudanese Mobile Telephone (ZA
18881 1621 1601 Global Village Telecom

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

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
23.91.14.0/24 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 /10:30 /11:92 /12:254
/13:474 /14:916 /15:1603 /16:12753 /17:6706 /18:11176
/19:23006 /20:32804 /21:35496 /22:49843 /23:43643 /24:250033
/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 2010 2056 MegaPath Corporation
36998 1829 1864 Sudanese Mobile Telephone (ZA
6389 1704 3049 BellSouth.net Inc.
8402 1598 1928 OJSC "Vimpelcom"
22773 1458 2199 Cox Communications, Inc.
30036 1224 1378 Mediacom Communications Corp
11492 1193 1231 Cable One
1785 1079 2028 PaeTec Communications, Inc.
6983 1035 1295 ITC^Deltacom
22561 965 1242 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 2:850 3:3 4:17 5:1027 6:21
8:619 12:1883 13:3 14:895 15:11 16:3
17:15 18:19 20:21 23:559 24:1746 27:1626
31:1505 32:44 33:2 34:5 36:86 37:1923
38:918 39:5 40:179 41:3246 42:255 44:14
46:2025 47:10 49:689 50:828 52:12 54:43
55:7 56:4 57:26 58:1092 59:569 60:379
61:1467 62:1239 63:1980 64:4334 65:2341 66:4154
67:2112 68:1108 69:3278 70:871 71:489 72:2043
74:2564 75:325 76:296 77:1157 78:1055 79:673
80:1297 81:1037 82:646 83:659 84:586 85:1253
86:383 87:1005 88:561 89:1557 90:150 91:5668
92:621 93:1605 94:2058 95:1626 96:511 97:350
98:1038 99:41 100:30 101:649 103:3608 105:527
106:132 107:215 108:528 109:1973 110:972 111:1111
112:592 113:807 114:747 115:1047 116:1005 117:821
118:1187 119:1257 120:335 121:750 122:1842 123:1256
124:1401 125:1432 128:668 129:229 130:351 131:659
132:359 133:158 134:557 135:72 136:283 137:248
138:346 139:177 140:197 141:331 142:544 143:411
144:493 145:90 146:531 147:404 148:780 149:368
150:138 151:653 152:411 153:205 154:52 155:494
156:294 157:420 158:280 159:694 160:360 161:456
162:857 163:222 164:630 165:586 166:259 167:635
168:1044 169:125 170:1115 171:184 172:27 173:1585
174:689 175:527 176:1322 177:2458 178:1962 179:298
180:1584 181:872 182:1378 183:467 184:654 185:1028
186:2634 187:1473 188:1874 189:1263 190:7311 192:7051
193:5425 194:4037 195:3370 196:1330 197:1035 198:4741
199:5486 200:6065 201:2521 202:8936 203:8870 204:4536
205:2639 206:2836 207:2837 208:3999 209:3663 210:2985
211:1557 212:2155 213:1994 214:900 215:91 216:5435
217:1689 218:625 219:321 220:1272 221:578 222:326
223:507

End of report
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